MSL data in the PDS and the Analyst's Notebook, Working with the archived science & engineering data Options

[Phil Stooke]

"February 27, 2013. MSL Release 1, part 1, Sols 0-89.

The first release of MSL data takes place in two parts.

Part 1, February 27, 2013, includes raw data products (EDRs) acquired on Sols 0 through 89, August 6 through November 5, 2012, for these instruments: APXS, ChemCam, DAN, Hazcam, Navcam, and REMS, along with SPICE data.

Part 2, March 20, 2013, will include the derived data products (RDRs) for Sols 0 though 89 for the APXS, ChemCam, DAN, Hazcam, Navcam, and REMS instruments, along with both the EDRs and RDRs for the CheMin and RAD instruments, and the RDRs for the SAM instrument.

Release 1 does not include data from the MAHLI, MARDI, or Mastcam instruments. These instrument teams have not yet delivered data products to PDS.

Some documents in the MSL archives are awaiting clearance by JPL Document Review and/or the JPL Import/Export Control Office. They will be posted online as soon as clearance has been received, and announced on this web site."


Phil

[jmknapp]

I had a feeling calculus might be involved--a more direct route would be to get the paper submitted to the EGU by Gomez-Elvira et al, maybe they said exactly what they do.

Failing that, wouldn't the brightness temperatures in effect already be the result of integration or other analysis of the raw data? I.e., a sample at a particular time says that the ground looks like a gray body radiating at 265K for the A band (8-14 um) and 273K for the B band (16-20 um). Maybe the conversion to actual temperature from those data points isn't too involved.

P.S. I'm trying to track down this reference cited by the authors:

http://www.ncbi.nlm.nih.gov/pubmed/16642125

[mwolff]

If you are after ground temperature, then the Zorzano reference will not really help. They are using measurements at two different temperatures (and two channels) to reduce the uncertainty associated with the instrument calibration. They are interested in the time series of temperature differences because this is the more important quantity in sensible heat flux characterization. As mentioned by M. Caplinger above, you need to know the emissivity of the material to get absolute temperature. The observed radiance is equal to the emissivity times the Planck function (ignoring atmospheric effects); calculus not needed if you believe your assessments of radiance and emissivity. The hard part, and the subject of the Zorzano paper, is dealing with getting radiance accurately from the instrument measurements. If you want to send me a message, I am sure that one can find you a copy of that paper.