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Dawn at Ceres - VIR

The Dawn spacecraft is visiting the dwarf planet 1 Ceres for the time period Dec. 26, 2014 through the end of the mission (planned for summer 2016). VIR is an imaging spectrometer that combines two data channels in one instrument, Visible (VIS) and Infrared (IR). The data sets linked below will include raw (level 1a) and calibrated (level 1b) versions of all available images acquired during the Ceres Encounter.


Raw Data (Level 1a)

Status: Archived

Data set: Browse: Download:
Dawn VIR IR raw, Ceres Approach and RC3 DWNCAVIR_I1A (3.1 Gb) DWNCAVIR_I1A.tar.gz (2.4 Gb)
Dawn VIR VIS raw, Ceres Approach and RC3 DWNCAVIR_V1A (3.1 Gb) DWNCAVIR_V1A.tar.gz (1.0 Gb)
Dawn VIR VIS raw, Ceres Survey DWNCSVIR_V1A (3.9 Gb) DWNCSVIR_V1A.tar.gz (1.8 Gb)


Status: Certified with minor liens as of August 10, 2016
Data set: Browse: Download:
Dawn VIR IR raw, Ceres Survey DWNCSVIR_I1A (2.7 Gb) DWNCSVIR_I1A-160423.tgz (2.3 Gb)
Dawn VIR IR raw, Ceres HAMO DWNCHVIR_I1A (7.7 Gb) DWNCHVIR_I1A-160423.tgz (6.6 Gb)
Dawn VIR VIS raw, Ceres HAMO DWNCHVIR_V1A (3.0 Gb) DWNCHVIR_V1A-160423.tgz (1.7 Gb)

Note: These three volumes have been released while still in liens-resolution. Please consult the liens list before using these data.


Calibrated Data (Level 1b)

Status: Archived

Data set id: Browse: Download:
Dawn VIR IR calibrated, Ceres Approach and RC3 DWNCAVIR_I1B (5.9 Gb) DWNCAVIR_I1B.tar.gz (4.9 Gb)
Dawn VIR VIS calibrated, Ceres Approach and RC3 DWNCAVIR_V1B (5.9 Gb) DWNCAVIR_V1B.tar.gz (4.9 Gb)


Status: Certified with minor liens as of August 10, 2016
Data set id: Browse: Download:
Dawn VIR IR calibrated, Ceres Survey DWNCSVIR_I1B (5.3 Gb) DWNCSVIR_I1B-160425.tgz (4.4 Gb)
Dawn VIR IR calibrated, Ceres HAMO DWNCHVIR_I1B (16 Gb) DWNCHVIR_I1B-160425.tgz (13 Gb)

Note: These two volumes have been released while still in liens-resolution. Please consult the liens list before using these data.

Note: The Ceres Survey and HAMO VIR VIS L1b volumes were not certified at review because it was discovered that a component of the VIR VIS processing, the detilt algorithm, has not been documented. These volumes will be released soon once the detilt algorithm has been documented. Note that the detilt algorithm was also part of the processing of all previously released VIR VIS L1b data, including Ceres Approach and RC3, and Vesta all phases. VIR IR is not affected.


Ceres mission phases

Information taken from the Dawn mission catalog file in Oct. 2015. Dates in parentheses are planned.

Phase name (phase id) Start time End time
CERES ENCOUNTER 2014-12-26T02:50 (2016-04-21)
CERES SCIENCE APPROACH (CSA) 2014-12-26T02:50 2015-04-24T00:00
CERES SCIENCE RC3 (CSR) 2015-04-24T00:00 2015-05-09T10:00
CERES TRANSFER TO SURVEY (CTS) 2015-05-09T10:00 2015-06-04T12:00
CERES SCIENCE SURVEY (CSS) 2015-06-04T12:00 2015-07-01T00:00
CERES TRANSFER TO HAMO (CTH) 2015-07-01T00:00 2015-08-16T23:59
CERES SCIENCE HAMO (CSH) 2015-08-16T23:59 (2015-10-23)
CERES TRANSFER TO LAMO (CTL) (2015-10-23) (2015-12-03)
CERES SCIENCE LAMO (CSL) (2015-12-03) (2016-04-21)
END OF MISSION (2016-04-21) TBD



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