USGS CoastCam CACO-02 at Marconi Beach, Cape Cod National Seashore, Massachusetts (2021, 2023, 2024): Imagery Data

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Frequently anticipated questions:

What does this data set describe?

Title:
USGS CoastCam CACO-02 at Marconi Beach, Cape Cod National Seashore, Massachusetts (2021, 2023, 2024): Imagery Data
Abstract:
Two digital video cameras were installed at Marconi Beach, Cape Cod National Seashore (CACO) in Massachusetts (MA) as part of a U.S. Geological Survey (USGS) research project to study the beach and nearshore environment. The cameras faced north/north-east (c1) and north-east/east (c2) along the beach and collected images for 17 minutes at 2Hz every half hour during daylight hours. They ran daily from March through June 2021, February through July 2023 and January through September 2024; the cameras collected raw images and produced snapshots and time-averaged image products. This data release includes the necessary intrinsic orientation (IO) and extrinsic orientation (EO) calibration data to utilize imagery to make quantitative measurements. USGS researchers analyzed the imagery collected from this camera to remotely sense a range of information including shoreline position, sandbar migration, wave run-up on the beach, alongshore currents, and nearshore bathymetry. These cameras are part of the USGS CoastCam network, supported by the Total Water Level/Coastal Change Project under the Coastal and Marine Hazards and Resources Program (CMHRP). To learn more about this specific camera site visit https://www.usgs.gov/centers/whcmsc/science/using-video-imagery-study-marconi-beach.
Supplemental_Information:
The bounding coordinates below represent the approximate limits of the rectified images from the CoastCam. The cameras were initially positioned to maintain approximately 7.5m of cliff toe overlap in their field of view (FOV). The intrinsic calibration photos were taken on 20210225 for the 2021 and 2023 deployments and on 20240105 for the 2024 deployment and their location information is not consequential. For each deployment (2021, 2023, and 2024), the cameras were positioned pointing roughly north-east (c1) and east (c2), however each deployment should be considered separately with regards to extrinsic calibration. IO/EO information is provided in the image EXIF headers as calculated from Bruder and Brodie (2020), however we recommend to the user to calculate their own EO data based on the dates of the imagery used. Please see CACO02_calibration_metadata for necessary IO/EO information. All camera images are geotagged with the general location of the CACO02 camera pole in geographic coordinates NAD83(2011), images from c1 and c2 have their extrinsic locations in the Exif tag UserComment in NAD83(2011)/UTM 19N + NAVD88, which are used to put the images into real world coordinates when georectifed. Throughout the course of the deployment the cameras can move due to changes in temperature, wind, or other factors. For more information about the WHCMSC Field Activities, see https://cmgds.marine.usgs.gov/services/activity.php?fan=2021-019-FA, https://cmgds.marine.usgs.gov/services/activity.php?fan=2021-022-FA, https://cmgds.marine.usgs.gov/services/activity.php?fan=2023-006-FA, https://cmgds.marine.usgs.gov/services/activity.php?fan=2024-002-FA. All images can be viewed or downloaded individually or in bulk on the USGS Imagery Data System (IDS) here: https://cmgds.marine.usgs.gov/idsviewer/data_release/10.5066-P17OF3UP
  1. How might this data set be cited?
    Lange, Athina M.Z., Over, Jin-Si R., and Sherwood, Christopher R., 20250513, USGS CoastCam CACO-02 at Marconi Beach, Cape Cod National Seashore, Massachusetts (2021, 2023, 2024): Imagery Data: data release doi:10.5066/P17OF3UP, U.S. Geological Survey, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Lange, Athina M.Z., Over, Jin-Si R., and Sherwood, Christopher R., 2025, USGS CoastCam CACO-02 at Marconi Beach, Cape Cod National Seashore, Massachusetts (2021, 2023, 2024): Imagery and Calibration Data: data release doi:10.5066/P17OF3UP, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details:
    Suggested citation: Lange, A.M.Z., Over, J.R., and Sherwood, C.R., 2025, USGS CoastCam CACO-02 at Marconi Beach, Cape Cod National Seashore, Massachusetts (2021, 2023, 2024) - Imagery and calibration data: U.S. Geological Survey data release, https://doi.org/10.5066/P17OF3UP.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -69.964350
    East_Bounding_Coordinate: -69.958605
    North_Bounding_Coordinate: 41.895340
    South_Bounding_Coordinate: 41.892590
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/67a4c1c8d34e63325c2b7a01/?name=CACO02_imagery_browse.jpg (JPEG)
    Example image products: (top left) brightest, (top right) snapshot, (middle left) darkest, (middle right) timex (time-averaged), (bottom) variance.
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 25-Feb-2021
    Currentness_Reference:
    ground condition, photos were not collected continuously between dates provided due to the occasional malfunction of the camera.
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: raster digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Raster data set. It contains the following raster data types:
      • Dimensions 2048 x 2448, type Grid Cell
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0000001. Longitudes are given to the nearest 0.0000001. Latitude and longitude values are specified in decimal degrees. The horizontal datum used is North American Datum of 1983 (National Spatial Reference System 2011).
      The ellipsoid used is GRS_1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.
  7. How does the data set describe geographic features?
    CACO02_imagery.csv
    CSV file containing the filename and date image was acquired for all image products in the data release. (Source: USGS)
    SourceFile
    File name of all .jpg files. (Source: USGS) Filename
    DateTimeOriginal
    Datetime that image was captured. If no time associated, time set to 12:00AM UTC. (Source: USGS) Image datetime
    Entity_and_Attribute_Overview:
    The image products are the complete set of images (81,613 JPEGs) obtained from the USGS CoastCam CACO-02 at Marconi Beach, MA from March 4th 2021 to June 3rd 2021, February 13th 2023 to July 20th 2023 and January 5th 2024, to September 8th 2024. These images are available for view and download on the USGS IDS here: https://cmgds.marine.usgs.gov/idsviewer/data_release/10.5066-P17OF3UP. A complete list of image names and original datetime are provided in CACO02_imagery.csv. Users are advised to read the EXIF and other imagery headers for more information about the dataset. It is recommended to check which extrinsic calibration is more appropriate for each image.
    Entity_and_Attribute_Detail_Citation:
    The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Athina M.Z. Lange
    • Jin-Si R. Over
    • Christopher R. Sherwood
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Athina M.Z. Lange
    U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    alange@contractor.usgs.gov

Why was the data set created?

Data were obtained to document interannual changes in shoreline position and coastal morphology. These data are intended for science researchers, students, policy makers, and the public. These data can be further processed to produce orthorectified products that can be viewed in a geographic information system (GIS) or other software to identify topographic and shallow-water bathymetric features. See the image processing toolbox developed by Bruder and Brodie (2020) for more information.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 04-Mar-2021 (process 1 of 4)
    Before mounting the CoastCam at the beach, the cameras (FLIR Blackfly S) were used to take intrinsic camera calibration images. Please refer to the CACO02_calibration_metadata record included in this data release for more information on the calibration process. The camera system consists of two FLIR Blackfly S cameras which were installed on a bluff overlooking Marconi Beach, approximately 200 meters north of the staircase landing on 20210304, 20230213 and 20240105. The cameras were deployed on a telescoping mast and aligned for an approximate 15 degrees overlapping view. The cameras are connected to an Intel NUC acquisition and control computer, powered by a solar charging system comprised of lithium batteries, a Renogy Voyager solar charge controller, and Renogy 100W solar panels. Intrinsic calibration was processed by A.M.Z. Lange. Person who carried out this activity:
    Athina M.Z. Lange
    U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    alange@contractor.usgs.gov
    Date: 04-Mar-2021 (process 2 of 4)
    The camera was programmed to collect three-band (red-green-blue) images for 17 minutes at 2Hz every half hour during daylight hours. The images included in this data release were collected from March 4th 2021 to June 3rd 2021, February 13th 2023 to July 20th 2023 and January 5th 2024, to September 8th 2024. Gaps may exist in each dataset due to camera malfunction. Additionally, some images may have been obscured by water droplets, insects, birds, salt, sand and dirt, poor visibility from adverse weather conditions, or sun glare, and thus may not reflect the true state of the beach and ocean. Each time the camera was activated, there were five resultant image products collected: the "snapshot" ("snap") image is the first frame of the video; the time exposure ("timex") image is the average of all frames within the 17 minute video; the "variance" ("var") image shows the standard deviation of pixel intensity throughout the video; the brightest ("bright") image shows the brightest pixel values throughout the video; and the darkest ("dark") image shows the darkest pixel values throughout the video. The local control computer acquires, produces, and stores the images and products and twice per hour syncs data to the AWS cloud server. The data is transmitted to the remote storage server via a Sierra Wireless cellular modem. Step was processed by C.R. Sherwood. Person who carried out this activity:
    Christopher Sherwood
    U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    csherwood@usgs.gov
    Date: 17-Feb-2025 (process 3 of 4)
    The images acquired with the camera were geotagged and processed to add additional information required by the USGS to the exchangeable image file format (EXIF) and other imagery headers using PyExifTool Python library (https://pypi.org/project/PyExifTool/, version: 0.5.6) and the files were renamed to a unique identifier based on the established Argus naming convention to avoid any possibility of duplicate names. The images were given EXIF header information in the directory with all the photos by assigning all the tags in a Python dictionary object to each photo using PyExifTool. The following describes the Python dictionary object with each entry in the dictionary being a tag-value pair: tags = { 'Copyright': 'Public Domain', 'CopyrightNotice': 'Public Domain - please credit U.S. Geological Survey', 'Artist': 'USGS WHCMSC', 'Make': 'FLIR', 'Camera Model Name': 'Blackfly S','UserComment': UserComment, 'GPSLatitude': '41 deg 53' 33.44 N', 'GPSLongitude': '69 deg 57' 47.50 W', 'GPSMapDatum': 'EPSG:6318 NAD83 (2011)', 'GPSAreaInformation': 'surveyed with RTK-GNSS', 'GPSLatitudeRef': 'North', 'GPSLongitudeRef': 'West', 'Credit': 'U.S. Geological Survey', 'Contact': 'whsc_data_contact@usgs.gov', 'UsageTerms': "Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty", 'AttributionURL': 'https://doi.org/10.5066/P17OF3UP', 'Contributor': 'Athina M.Z. Lange, Jin-Si R. Over, Christopher R. Sherwood', 'XMP-photoshop:Credit': 'U.S. Geological Survey', 'iptcCore:CreatorWorkEmail': 'whsc_data_contact@usgs.gov','Rights': 'Public Domain', ExternalMetadataLink:, 'https://www1.usgs.gov/pir/api/identifiers/USGS:67a4c0c3d34e63325c2b79fa', 'ImageDescription': 'https://cmgds.marine.usgs.gov/services/activity.php?fan=2024-002-FA; This image was captured from a stationary camera (CACO-02 c#) at Cape Cod National Seashore, Massachusetts. Field Activity Number: 2024-002-FA.', 'Description': 'https://cmgds.marine.usgs.gov/services/activity.php?fan=2024-002-FA; This image was captured from a stationary camera (CACO-02 c#) at Cape Cod National Seashore, Massachusetts. Field Activity Number: 2024-002-FA.'}.
    All of the previously listed tags were the same for each image, with different FANs depending on the deployment. Additionally, there were tags added to the Python dictionary object that would have a different value for each image depending on factors such as the file type and/or date when the image was captured.
    These tags and an example value are included as follows, as well as a description for why the values differ, as needed: 'PreservedFileName': '1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.snap.jpg'; 'Caption-Abstract': 'The snapshot image represents the first frame of the 17 minute video. This image was captured from a stationary camera (CACO-02 c1) at Cape Cod National Seashore, Massachusetts, Field Activity Number: 2024-002-FA (https://cmgds.marine.usgs.gov/services/activity.php?fan=2024-002-FA) on 2024-06-12 14:12:00+00:00 UTC. For more info, see https://www.usgs.gov/centers/whcmsc/science/using-video-imagery-study-marconi-beach.', 'Caption': 'The snapshot image taken at CACO-02 c1 at Cape Cod National Seashore, Massachusetts, USA on 2024-06-12 14:12:00+00:00 UTC', 'Comment': 'Snapshot image for 2024-06-12 14:12:00+00:00 UTC; This image was captured from a stationary camera (CACO-02 c1) at Cape Cod National Seashore, Massachusetts. Field Activity Number: 2024-002-FA'. 'Keywords': "Marconi Beach, Cape Cod National Seashore, Massachusetts, CoastCam, USGS, snapshot, remote sensing".
    All the Joint Photographic Experts Group (JPEG) images were renamed to ensure unique filenames and compliance with the USGS Coastal and Marine Hazard and Resources Program's (CMHRP) best practices for image naming convention. Images were renamed with the image acquisition date and Greenwich Mean Time (GMT) in computer and human readable format, the camera location, the camera number, and the image type that distinguishes among the five image product types. For example, image name '1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.snap.jpg', where 1718201520 is the 10-digit epoch time convention of the date and time, Wed is the three character day of the week, Jun is the three character month, 12 is the two digit day of the month, 14_12_00 is the GMT time in HH_MM_SS format, 2024 is the year, caco-02 is the camera location, c1 is the camera number, and snap is the image type. The UserComment EXIF metadata field was used to store the camera intrinsics and extrinsics in the image metadata.
    The UserComment has a nested dictionary structure. The highest-level dictionary contains two nested dictionaries as well as a note explaining the structure of the UserComment field. One nested dictionary contains the relevant intrinsic (NU, NV, coU, coV, fx, fy, d1, d2, d3, t1, t2) and extrinsic (x, y, z, azimuth, tilt, roll) data variables. See CACO02_calibration_metadata for descriptions of variables. The extrinsic variables include both horizontal and vertical location of the camera in NAD83(2011)/UTM 19N + NAVD88 (GEOID 18). We recommend to the user to calculate their own EO data based on the dates of the imagery used. The other nested dictionary contains text descriptions for each of the variables in the dictionary of data variables. The calibration date and GPS DateStamp field indicates the date of the EO. The field activity numbers in the Image Description and Description are relative to the deployment; 2021: 2021-019-FA and 2021-022-FA; and 2024: 2024-002-FA.
    The camera pole location was surveyed with RTK gear, which gives us the UTM and Lat/Long simultaneously in the file we download off of the device. The EXIF GPS Latitude/Longitude/Position tags are in NAD83(2011).
    To read out the imagery header information to a comma-separated values (CSV) file with exiftool, the command is: 'exiftool -csv *.jpg > .\ allheaders.csv'. Specific tags may be specified with this command, if preferred. Step processed by A.M.Z. Lange. Person who carried out this activity:
    Athina M.Z. Lange
    U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    alange@contractor.usgs.gov
    Data sources produced in this process:
    • XXXXXXXXXX.DOW.mmm.DD_HH_MM_SS.GMT.YYYY.caco-02.c#.type.jpg
    Date: 17-Feb-2025 (process 4 of 4)
    A total of 81,613 JPEG images are included in this release and can be searched, viewed and downloaded on the USGS IDS here: https://cmgds.marine.usgs.gov/idsviewer/data_release/10.5066-P17OF3UP. There are 17,844 JPEG images from the 2021 deployment, 31,479 JPEG images from the 2023 deployment, and 32,290 JPEG images from the 2024 deployment. The images on the IDS are sorted by default from newest to oldest date collected and can also be browsed by collection: CACO02_EO, CACO02_IO, CACO02_c1_bright, CACO02_c1_dark, CACO02_c1_snap, CACO02_c1_timex, CACO02_c1_var, CACO02_c2_bright, CACO02_c2_dark, CACO02_c2_snap, CACO02_c2_timex, and CACO02_c2_var. The complete collection or a select subset of the images can be downloaded from the IDS. A complete list of image names and original datetime are provided in CACO02_imageProducts.csv. An example subset of this image collection can be downloaded from the data release webpage (https://www.sciencebase.gov/catalog/item/67a4c1c8d34e63325c2b7a01). Step processed by J.R. Over. Person who carried out this activity:
    Jin-Si R. Over
    U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2297 (voice)
    jover@usgs.gov
    Data sources produced in this process:
    • CACO02_imageProducts.csv
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.bright.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.dark.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.snap.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.timex.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c1.var.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c2.bright.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c2.dark.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c2.snap.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c2.timex.jpg
    • 1718201520.Wed.Jun.12_14_12_00.GMT.2024.caco-02.c2.var.jpg
  3. What similar or related data should the user be aware of?
    Bruder, Brittany L., and Brodie, Katherine L., 20200909, CIRN Quantitative Coastal Imaging Toolbox: SoftwareX Volume 12, 100582, Elsevier, online.

    Online Links:

    Other_Citation_Details:
    This publication describes the steps used to calibrate the CoastCam.

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    The video cameras collected 5-megapixel images, with file sizes generally between 0.1 and 1.3 megabytes (MB) on disc. Images may be obscured by water droplets, insects, birds, salt, sand and dirt, poor visibility from adverse weather conditions or sun glare, and thus may not reflect the true state of the beach and ocean.
  2. How accurate are the geographic locations?
    The camera pole location: This is embedded in all images GPSLatitude and GPSLongitude Exif information, which was measured with a Real-Time Kinematic (RTK) Global Positioning System (GPS) equipment and is accurate to 2 cm. This value is 41 deg 53' 33.44" N, 69 deg 57' 47.50" W EPSG:6318 NAD83(2011) and is used to generally locate CACO02.
    Camera c1 and c2 EO location: The horizontal accuracy of the camera's external orientation, which is embedded in the Exif tag UserComment, was verified using data collected in field activities 2021-019-FA, 2021-022-FA, 2023-006-FA and 2024-002-FA and processed with the CIRN Quantitative Coastal Imaging Toolbox (Bruder and Brodie, 2020) which reports horizontal +/- error estimates less than 1 meter. These are available in the CACO02_calibration_metadata record included in the larger work citation. Horizontal coordinates were referenced to NAD83(2011)/UTM Zone 19N (Epoch 2010.00), with a resolution of 0.001 meters. These EO horizontal values are used to place the images into real world coordinates when georectified.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    The imagery represents a fixed location at Marconi Beach, MA. Images may not be available every half hour of operation due to camera malfunction. Images may be obscured by water droplets, insects, birds, salt, sand and dirt, poor visibility from adverse weather conditions or sun glare, and thus may not reflect the true state of the beach and ocean. The cameras were deployed at the same location three times: March - June 2021, February - July 2023 and January - September 2024. Throughout the course of each deployment the cameras can move due to changes in temperature, wind, or other factors. This product is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    The camera system installed (FLIR Blackfly S) was programmed to collect three-band images every half hour during daylight hours and take video for 17 minutes. Each time the camera was activated there were five resultant image products collected: snap, timex, var, bright, and dark images. See the Process Steps for more information about these image types.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints None
Use_Constraints Public domain (CC0-1.0) data from the U.S. Government are freely distributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. These data are not intended for navigational use.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? Image products collected and created by CACO-02.
  3. What legal disclaimers am I supposed to read?
    This publication was prepared by an agency of the United States Government. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the USGS, no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 13-May-2025
Metadata author:
Athina M.Z. Lange
U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
U.S. Geological Survey
Woods Hole, MA
USA

508-548-8700 (voice)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS.
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P17OF3UP/CACO02_imagery_metadata.faq.html>
Generated by mp version 2.9.51 on Tue May 13 14:02:30 2025