hydra> print(e2d_meta[1]);
{name="E0102-72[S3,-120,-1,0,0]",
 object="E0102-72[S3,-120,-1,0,0]",
 telescop="CHANDRA",
 instrume="ACIS",
 grating="NONE",
 date_obs="2003-08-08T15:19:09",
 year_obs=2003.6,
 tstart=1.76743e+08,
 roll_nom=64.077,
 timedel=1.14104,
 dtcor=0.964033,
 exposure=7.86207,
 part=NULL,
 order=NULL,
 srcid=NULL,
 xtag="X",
 ytag="Y",
 xorigin=4177,
 yorigin=3965,
 xunit="arcsec",
 yunit="arcsec",
 emin=0.4,
 emax=5,
 oslo=NULL,
 oshi=NULL,
 arffile="obs_3545_extract.warf",
 arfelo=Double_Type[1070],
 arfval=Double_Type[1070],
 arffrac=NULL,
 oversim=1,
 scisigma=0.1,
 modvalid=1,
 datvalid=1,
 envalid=1,
 ignore=0}