This directory contains log files produced by SDSS telescope control systems, imaging camera and spectroscopic instrument.
To jump to links to the individual MJD directories, click here.
These data should be regarded as the source material for metadata used by the SDSS imaging and spectroscopic processing pipeleines (photoop and idlspec2d). However, these data are not the actual metadata used those pipelines. That metadata can be found in the photolog and speclog products, respectively. In other words, the photolog and speclog products are the curated versions of the raw data found here.
During the summer of 2015, as part of the transition from SDSS-III to SDSS-IV, astrolog data was transferred from APO to long-term archiving. However, there were already two other versions of these data extant. Here is a brief description of the three versions:
In addition there is some duplication of files with the oplogs data. These files are left alone.
The MJD directories in the same directory as this file contain a deduplicated sample from these sources. The deduplication followed the procedure outlined below.
The removal of duplicate files followed this procedure. For each MJD directory in each of the three sources listed above:
The code that implements this procedure is in python/deduplicate.py in the sas product.
The log showing the files and directories that were moved is here.
After deduplication, the remaining contents of apo_engineering and apo_staging were mothballed:
The following subdirectories were discovered:
The original README file in this directory is preserved below.
51615/plPlugMapM-0323-51612-01.par Changed the SPECTROPHOTO_STD stars to those suggested by Hogg 51579/plPlugMapM-0318-51578-01.par Changed the SPECTROPHOTO_STD stars to the following two: FIBERID=255 RA=132.55750 DEC=11.356539 FIBERID=558 RA=133.01796 DEC=11.911908a These changes were made by changing the u,g,i,z magnitudes such that these stars will be selected. The existing SPECTROPHOTO_STD objects were renamed to UNKNOWN. Are the SKY fibers really sky?? 51580/plPlugMapM-0318-51578-01.par Same changes as for 51579/plPlugMapM-0318-51578-01.par 51614/plPlugMapM-0318-51598-01.par Same changes as for 51579/plPlugMapM-0318-51578-01.par 51629/plPlugMapM-0318-51626-01.par Same changes as for 51579/plPlugMapM-0318-51578-01.par 51951 Replace the plugmap files for 0413-51925-01 with 0413-51942-01. 51959 Replace the plugmap files for 0550-51954-01 with 0550-51954-02. 51959 Replace the plugmap files for 0547-51954-02 with 0547-51954-03. 51984 Replace the plugmap files for 0542-51984-01 with 0542-51984-02. 51984 Replace the plugmap files for 0279-51977-01 with 0279-51977-02. 51985 Replace the plugmap files for 0542-51984-01 with 0542-51984-02. 51991 Replace the plugmap files for 0542-51984-01 with 0542-51984-02. 51993 Replace the plugmap files for 0542-51984-01 with 0542-51984-02. 51994 Replace the plugmap files for 0503-51976-01 with 0503-51991-01. ------------------------------------------------------------------------------ On 13 Nov 02, I have done an rsync from sdsshost.apo:/astrolog for MJD = [52510, 52592] (today). This is to get the imaging log files for these dates, which were not copied by SOS. On 13 Nov 02, I have done an rsync from sdsshost.apo:/skycat/oplogs/astrolog for MJD = [52312, 52510). This is to get the imaging log files for these dates, which were not copied by SOS. --> Run /scr0/data/astrolog/rsync.13nov02 !!!??? On 13 Nov 02, I have copied the Fermi golden directories at Princeton for MJD 50991 to 51259 (pre-spectroscopy days, which started on 51433). Since I'm using the Princeton version, this includes the Finkbeiner-edits to the idFrameLog files for the Orion scans. We still need the idAstroline files for runs 745->756, corresponding to MJD 51257->51259, which aren't even in the Fermi golden directory. The following directories existed in the golden directory, but not in astrolog. I'll copy from the golden directory ??? 50991 50992 51437 51458 51459 51463 51464 51465 51466 51467 51568 51569 51570 51574 51576 51577 51586 51606 51607 51618 51631 51632 51638 51639 51640 51659 51661 51664 51667 51668 51669 51670 51674 51675 51685 51686 51698 51781 51801 51808 51814 51815 51887 51888 51891 51892 The following directories existed in the golden directory, but not in astrolog. On 15 Nov 02, I have done an rsync from sdsshost.apo:/skycat/oplogs/astrolog: 51819 51853 51854 51855 51856 51862 51863 51864 51865 51866 51867 51870 51874 51875 51880 51881 51886 51894 51895 51896 51922 51933 52308