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Recent Topics
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Hi John, Thanks for confirming and letting me know about BD1900_2. Whilst we are on this topic - for MIN2200, there is no stated kernel width for R2210 in the documentation: I found a kernel width of 3 is required to replicate the results, so either that needs to be added to the documentation or maybe the calculation is a little amiss there. Thanks, and have a good weekend. Tejay -
March 13, 2025 - New MEX HRSC RDR Version 4 data loaded into ODE - Added HRSC new radiometrically calibrated (RDR version 4) image data into ODE, with coverage from August 6, 2024 to December 29, 2024 (Orbit 26500). ODE product search page: https://ode.rsl.wustl.edu/mars/productsearch ODE map search page: https://ode.rsl.wustl.edu/mars/mapsearch ODE data holdings page: https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html -
By John Christian · Posted
Hi Tejay, I've confirmed your assessment that the BD1900_2 values reported are actually calculations for BD1930, instead. I've also tracked down the issue with BD1900R2 - in the SU file you referenced, the slopes for RC#### were calculated using R1815 and R2132, instead of R1850 and R2060. Your calculations for BD1900_2 and BD1900R2 are correct, so I would recommend you keep using those. I'll reach out to the CRISM team regarding these issues you identified in the parameter calculations so we can get them corrected. John -
By John Christian · Posted
Hi Tejay, Thanks for bringing this to our attention! There's definitely something odd going on with those two parameters in the SU file you referenced, and I agree with your initial assessment that the BD1900_2 values reported look like they're reporting BD1930, instead. I'll look into this in more detail, and report back here once I figure out what's going on. John -
Upon looking in this further, all BD1900_2 seems to be returning is BD1930: The error between BD1900_2 as per the CRISM DPSIS documentation is this: But when I just return BD1930 instead: Is anyone able to verify my suspicion. The next question is how is BD1900r2 really calculated as that one is going to be a lot hard to tease out?
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