red-4 / curious-moon

The Repository for the book, A Curious Moon, which you can purchase from https://bigmachine.io.

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Screenshot for downloaded data doesn't match the data we need

coaxial opened this issue · comments

commented

on p141, it is confusing that the screenshot doesn't match any of the days we found from the previous query[0]. Why is it about 2004 when the first flyby that we're looking at was in 2005?

[0]:

enceladus=# select date_part('year', date), to_char(time_stamp, 'DDD') from enceladus_events where event like '%closest%';
 date_part | to_char 
-----------+---------
      2005 | 048
      2005 | 068
      2005 | 195
      2008 | 072
      2008 | 224
      2008 | 283
      2008 | 305
      2009 | 306
      2009 | 306
      2009 | 325
      2010 | 117
      2010 | 138
      2010 | 225
      2010 | 334
      2010 | 355
      2011 | 274
      2011 | 292
      2011 | 310
      2012 | 087
      2012 | 105
      2012 | 123
      2015 | 287
      2015 | 301
      2015 | 353
(24 rows)
commented

Adding to that, for those who don't want to download the whole dataset, you can get the specific CSV files you need for the days and times of Enceladus flybys with this query:

enceladus=# select date_part('year', date), to_char(time_stamp, 'DDD'), to_char(time_stamp, 'HH') from enceladus_events where event like '%closest%';
 date_part | to_char | to_char 
-----------+---------+---------
      2005 | 048     | 03
      2005 | 068     | 08
      2005 | 195     | 07
      2008 | 072     | 06
      2008 | 224     | 08
      2008 | 283     | 06
      2008 | 305     | 04
      2009 | 306     | 07
      2009 | 306     | 07
      2009 | 325     | 01
      2010 | 117     | 11
      2010 | 138     | 05
      2010 | 225     | 09
      2010 | 334     | 11
      2010 | 355     | 12
      2011 | 274     | 12
      2011 | 292     | 08
      2011 | 310     | 03
      2012 | 087     | 06
      2012 | 105     | 01
      2012 | 123     | 08
      2015 | 287     | 09
      2015 | 301     | 02
      2015 | 353     | 04
(24 rows)

The first of which is here: https://pds-ppi.igpp.ucla.edu/search/view/?f=yes&id=pds://PPI/CO-S-INMS-3-L1A-U-V1.0/DATA/SATURN/2005/032_059_FEB/048/200504803_L1A_05 and only a couple megabytes total.

The screenshot is the dump from the INMS, which of course won't match because it's a crapload of data. This isn't an issue.