Ceres Dawn Zeilnhofer Crater Database 2020

Primary Authors

Michael F. Zeilnhofer

Originators

Michael F. Zeilnhofer, Nadine G. Barlow

Publisher

USGS Astrogeology Science Center

Publication Date

2021-10-14

Abstract

Product Information: Update: Oct. 14, 2021 to version 2 which includes polygonal impact craters (Excel table) as described in Zeilnhofer, 2021. The Cerean crater database contains 44,594 craters ≥ 1.0 km in diameter in the latitude range of 84.66ºS-89.62ºN over all longitudes [Zeilnhofer, 2020]. This crater database contains eighteen columns of information on each crater. For further detail on the column information please see the dissertation entitled: “A Global Analysis of Impact Craters on Ceres”. It is also important to note that the database does not contain information on the south pole of Ceres due to this region being permanently shadowed in the Dawn images [Platz et al., 2016]. Craters were identified using the Low Altitude Mapping Orbit (LAMO) global mosaic of Ceres found within the Java Mission-planning and Analysis for Remote Sensing (JMARS) software [Gorelick et al., 2003]. The center latitude (°N) and longitude (°E) along with the measured crater diameter (km) were determined using the 3-point crater counting subroutine found within JMARS [Christensen et al., 2009; Wren et al., 2017]. The crater depth (km) and crater rim height (km) are also included in this database and were obtained from the topography data which were created from the digital elevation models (DEM) for the entire surface of Ceres. Mission and Instrument Information: The Dawn spacecraft is a National Aeronautics and Space Administration (NASA) Discovery Program mission managed by the Jet Propulsion Laboratory (JPL) team located at the University of California, Los Angeles and was launched from Cape Canaveral, Florida on September 25, 2007 [Polanskey et al., 2016]. The Dawn spacecraft is equipped with two identical Framing Cameras (FC2, the primary camera and FC1, the backup camera) [Sierks et al., 2011], a Visible and Infrared Mapping Spectrometer (VIR) [De Sanctis et al., 2011] and a Gamma Ray and Neutron Detector (GRaND) [Prettyman et al., 2011]. The Dawn spacecraft went into orbit around Ceres on March 6, 2015 and was retired on November 1, 2018. There were several mission phases including the third rotation characterization (RC3), survey, High Altitude Mapping Orbit (HAMO), Low Altitude Mapping Orbit (LAMO) and the extended mission orbits [Polanskey et al., 2016; Dongsuk et al., 2019]. The data for this database were acquired from the NASA Dawn spacecraft’s Framing Camera during the HAMO (resolution of 140 m/pixel) [Roatsch et al., 2016] and the LAMO phases (resolution of 35 m/pixel) [Roatsch et al., 2017]. The HAMO phase included six cycles at an altitude of ∼1475 km [Russell and Raymond, 2011]. The HAMO global mosaic was created using the 2490 clear filter images acquired during these cycles [Roatsch et al., 2016]. The LAMO phase included eleven cycles with images acquired at altitudes between 365 and 410 km [Russell and Raymond, 2011]. The LAMO global mosaic was created using the 31,300 clear filter images acquired during this phase [Roatsch et al., 2017]. The digital elevation models (DEM) were produced from the stereographic Framing Camera images resulting in two topography models (the mean spheroid model and the oblate spheroid model) which are included within JMARS. The mean spheroid model uses the DEM radii of a sphere with a radius of 469,430 m [Raymond et al., 2011; Roatsch et al., 2016] and the oblate spheroid model subtracts an oblate spheroid from the DEM radii of a sphere with a radius of 469,430 m to help conserve local topography differences across the body [Raymond et al., 2011; Roatsch et al., 2016]. References: Christensen, P. R., Engle, E., Anwar, S., Dickenshied, S., Noss, D., Gorelick, N., and Weiss-Malik, M. (2009). JMARS - A Planetary GIS. AGU Fall Meeting Abstracts, (pp. IN22A–06). De Sanctis, M.C., Coradini, A., Ammannito, E., Filacchione, G., Capria, M.T., Fonte, S., Magni, G., Barbis, A., Bini, A., Dami, M., Ficai-Veltroni, I., Preti, G., and VIR Team, (2011), The VIR Spectrometer, Space Science Review, 163, 329-369, doi: 10.1007/s11214-010-9668-5. Dongsuk, H., Brian, K., Brian, R., Daniel, G., Nickolaos, M., Gregory, W., Nicholas, B., and Reza, K. (2019). Dawn’s Final Mission at Ceres: Navigation and Mission Design Experience. 18th Australian Aerospace Congress, 24-28 February 2019, Melbourne. 1-15. Gorelick, N. S., Weiss-Malik, M., Steinberg, B., and Anwar, S. (2003). JMARS: A Multimission Data Fusion Application. 34th Annual Lunar and Planetary Science Conference, 34. Platz, T., Nathues, A., Schaefer, M., Schenk, P., Kneissl, T., Hoffmann, M., Schmedemann, N., Hiesinger, H., Sykes, M. V., Raymond, C. A., and Russell, C. T. (2016). Impact Cratering on Ceres: The Simple-to-Complex Transition. In Lunar and Planetary Science Conference (p. 2308). volume 47 of Lunar and Planetary Science Conference. Polanskey, C., Joy, S., and Raymond, C. (2016). Dawn Ceres Mission: Science Operations Performance. Paper presented at the SpaceOps Conference, Daejeon, Korea. https://arc.aiaa.org/doi/abs/10.2514/6.2016-2442 Prettyman, T. H., Feldman, W. C., McSwen, H. Y., Dingler, R. D., Enemark, D. C., Patrick, D. E., Storms, S. A., Hendricks, J. S., Morgenthaler, J. P., Pitman, K. M., and Reedy, R. C. (2011). Dawn’s Gamma Ray and Neutron Detector, Space Science Reviews, 163 371-459. doi: 10.1007/s11214-011-9862-0. Roatsch, T., Kersten, E., Matz, K.-D., Preusker, F., Scholten, F., Jaumann, R., Raymond, C. A., and Russell, C. T. (2016). High-resolution Ceres High Altitude Mapping Orbit atlas derived from Dawn Framing Camera images. Planetary Space Science, 129, 103–107. doi:10.1016/j.pss.2016.05.011. Roatsch, T., Kersten, E., Matz, K.-D., Preusker, F., Scholten, F., Jaumann, R., Raymond, C. A., and Russell, C. T. (2017). High-resolution Ceres Low Altitude Mapping Orbit Atlas derived from Dawn Framing Camera images. Planetary Space Science, 140, 74–79. doi:10.1016/j.pss.2017.04.008. Russell, C. T., and Raymond, C. A. (2011). The Dawn Mission to Vesta and Ceres. Space Science Review, 163, 3–23. doi:10.1007/s11214-011-9836-2. Sierks, H., Keller, H. U., Jaumann, R., Michalik, H., Behnke, T., Bubenhagen, F., Büttner, I., Carsenty, U., Christensen, U., Enge, R., Fiethe, B., Gutíerrez Marqúes, P., Hartwig, H., Krüger, H., Kühne, W., Maue, T., Mottola, S., Nathues, A., Reiche, K.-U., Richards, M. L., Roatsch, T., Schröder, S. E., Szemerey, I., and Tschentscher, M. (2011). The Dawn Framing Camera. Space Science Reviews, 163, 263–327. doi:10.1007/s11214-011-9745-4. Wren, P. F., Dickenshied, S., Answar, S., Noss, D., Hagee, W., Carter, S., Rios, K., and Burris, M. (2017). Impact crater analysis capabilities of the Java Mission Planning and Analysis for Remote Sensing (JMARS) application. In Planetary Crater Consortium (p. 1720). volume 8 of Planetary Crater Consortium. Zeilnhofer, M. (2020). A Global Analysis of Impact Craters on Ceres. ProQuest Dissertations & Theses Global, 1-251, proquest: 27963349, URL: https://search.proquest.com/openview/4e9a383f80b524bf68f755ff3649d02d Zeilnhofer, M.F., Barlow, N.G., (2021). The morphologic and morphometric characteristics of craters on Ceres and implications for the crust. Icarus. 368, 114428. https://doi.org/10.1016/j.icarus.2021.114428 Zeilnhofer, M.F., Barlow, N.G., (2021). The Characterization and Distribution of Polygonal Impact Craters on Ceres and their Implications for the Cerean Crust. Icarus, 368, 114586, https://doi.org/10.1016/j.icarus.2021.114586

Purpose

The purpose of this database is to have a through catalog of craters on Ceres for further research studies of the dwarf planet 1 Ceres.

Contact and Distribution

Format

Database, Tabular Data, Vector Data

Access Constraints

none

Access Scope

Astropedia, MRCTR

Use Constraints

please cite authors

Edition

2

Edition Name

version

Supplemental Information

https://search.proquest.com/openview/4e9a383f80b524bf68f755ff3649d02d

Native Data Set Environment

ESRI Arcinfo

Astrogeology Theme

Craters, Dwarf planets, Geographic Information System (GIS), Impact Crater

Mission Names

Dawn

Online Package Link

https://astrogeology.usgs.gov/search/map/ceres_dawn_zeilnhofer_crater_database_2020

External File Size

9072361

Online File Link

http://astropedia.astrogeology.usgs.gov/download/Ceres/Dawn/Craters/ceres_dawn_fc2_craterdatabase_zeilnhofer_2020_v2.zip

Access Instructions

CSV table file reader, GIS Application needed for viewing the shapefiles.

Contact Address

2255 N. Gemini Drive

Contact City

Flagstaff

Contact State

AZ

Contact Postal Code

86001

Contact Email

astroweb@usgs.gov

Data Status and Quality

Time Period of Content (start)

2016-08-22

Time Period of Content (stop)

2019-08-19

Currentness Reference

Ground condition

Progress

In Work

Update Frequency

As needed

Completeness Report

This crater database is not 100 percent complete for all craters ≥ 1.0 km in diameter due to lack of crater data reported for craters between 84.67-90°S 0-360°E. There may also be highly degraded craters which are not reported within the database due to resolution. This is discussed further in the dissertation.

Process Description

Please see the dissertation for the extensive description of the process to create the crater database for Ceres. The LAMO global mosaic (~35 m/pixel) for Ceres found within JMARS was used to measure the crater diameter (km). The crater’s center latitude and longitude were determined using the 3-point crater counting routine while the mean spheroid and oblate spheroid topography models were used to determine the crater depth and rim height.

Source Title

Dawn Data Archive

Source Online Linkage

https://sbn.psi.edu/pds/resource/dawn/

Source PDS Archive

Dawn

PDS Status

PDS 4 Compatible

Attribute Accuracy Report

Best Effort

Horizontal Positional Accuracy Report

Best Effort

Geospatial Information

Target

Ceres

System

Small Bodies

Minimum Latitude

-90

Maximum Latitude

90

Minimum Longitude

-180

Maximum Longitude

180

Direct Spatial Reference Method

Vector

Object Type

Grid Cell

Quad Name

Radius A

470000

Radius C

470000

Map Projection Name

Simple Cylindrical

Latitude Type

Planetocentric

Longitude Direction

Positive East

Longitude Domain

-180 to 180