ROSETTA-ORBITER 67P ROSINA 4 PRL: Comet Gas Composition Prelanding Phase

ROSINA COPS sensor data from the Rosetta mission's Prelanding phase at comet 67P/Churyumov-Gerasimenko between March 29, 2014 and November 18, 2014. The dataset contains CODMAC level 4 science data, with version 2.0 adding minor species detected by DFMS. The data was produced by the National Aeronautics and Space Administration.

Use Cases

• Analyze the abundance of major gases in comet 67P based on COPS sensor data
• Study the temporal evolution of minor species like methane and ammonia during the Prelanding phase
• Model comet outgassing rates using the detected gas concentrations
• Compare the composition of comet 67P with other cometary bodies

Strengths

• Data covers a defined mission phase from March 29, 2014 to November 18, 2014
• Version 2.0 includes specific minor species: CH4, NH3, HCN, H2CO, C2H6, CH3OH, H2S, C2H5OH, OCS, CS2
• Data is classified as CODMAC level 4, indicating processed science data

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Acquired by the ROSINA COPS sensor on the Rosetta spacecraft.

Time Range

2014-03-29 to 2014-11-18

Freshness

Last updated 2026-03-13 10:08:42.767979; freshness should be verified

Geography

Comet 67P/Churyumov-Gerasimenko