[Difx-users] EOP issues

[Cormac Reynolds]

hi Stuart,

calcif2 only takes 5 EOPs, so probably the issue is that after 2 of your 
7 EOPs are rejected you are left with 5 that don't fully bracket the 
observation. You need to upgrade to difxcalc11 if you want to use more.

I note that your leap second value is also wrong for that date.

getEOP.py from the espresso package will always return 5 EOPs bracketing 
your requested date, and will get the leap seconds correct for any date. 
The trunk version also has the option to return either v2d or vex format 
as you prefer.

cheers,
Cormac.

On 08/12/17 11:03, Stuart Weston wrote:
> The experiment was on 2017.330, I have EOP’s from 329-333
> 
> So I do calcif2 and it tells me :
> 
> calcif2 -v -f --override-version -s localhost ws001b_7.calc
> 
> calcif2 processing file 1/1 = ws001b_7
> 
> EOPs don't bracket the observation.
> 
> Error: calcif2: difxCalcInit returned -2
> 
> If I look in the calc file I have EOP’s from MJD 58080 – 58086, not 
> 2017.330 is MJD 58083:
> 
> NUM EOPS:           7
> 
> EOP 0 TIME (mjd):   58080
> 
> EOP 0 TAI_UTC (sec):35
> 
> EOP 0 UT1_UTC (sec):-1.743567
> 
> EOP 0 XPOLE (arcsec):0.139530
> 
> EOP 0 YPOLE (arcsec):0.238350
> 
> EOP 1 TIME (mjd):   58081
> 
> EOP 1 TAI_UTC (sec):35
> 
> EOP 1 UT1_UTC (sec):-1.744294
> 
> EOP 1 XPOLE (arcsec):0.137080
> 
> EOP 1 YPOLE (arcsec):0.237960
> 
> EOP 2 TIME (mjd):   58082
> 
> EOP 2 TAI_UTC (sec):35
> 
> EOP 2 UT1_UTC (sec):-1.745087
> 
> EOP 2 XPOLE (arcsec):0.135260
> 
> EOP 2 YPOLE (arcsec):0.237510
> 
> EOP 3 TIME (mjd):   58083
> 
> EOP 3 TAI_UTC (sec):35
> 
> EOP 3 UT1_UTC (sec):-1.746037
> 
> EOP 3 XPOLE (arcsec):0.133450
> 
> EOP 3 YPOLE (arcsec):0.237120
> 
> EOP 4 TIME (mjd):   58084
> 
> EOP 4 TAI_UTC (sec):35
> 
> EOP 4 UT1_UTC (sec):-1.747185
> 
> EOP 4 XPOLE (arcsec):0.131180
> 
> EOP 4 YPOLE (arcsec):0.236920
> 
> EOP 5 TIME (mjd):   58085
> 
> EOP 5 TAI_UTC (sec):35
> 
> EOP 5 UT1_UTC (sec):-1.748527
> 
> EOP 5 XPOLE (arcsec):0.128800
> 
> EOP 5 YPOLE (arcsec):0.237050
> 
> EOP 6 TIME (mjd):   58086
> 
> EOP 6 TAI_UTC (sec):35
> 
> EOP 6 UT1_UTC (sec):-1.749995
> 
> EOP 6 XPOLE (arcsec):0.126440
> 
> EOP 6 YPOLE (arcsec):0.237130
> 
> NUM SPACECRAFT:     0
> 
> The previous calc files with the same EOP’s where fine ?
> 
> Stuart Weston Bsc (Hons), MPhil (Hons), MInstP
> 
> Mobile: 021 713062
> 
> Skype: stuart.d.weston
> Email: stuart.weston at aut.ac.nz <mailto:stuart.weston at aut.ac.nz>
> 
> http://www.atnf.csiro.au/people/Stuart.Weston/index.html
> 
> Software Engineer
> Institute for Radio Astronomy & Space Research (IRASR)
> School of Computing & Mathematical Sciences
> Faculty of Creative Technologies
> Auckland University of Technology, New Zealand.
> 
> http://www.irasr.aut.ac.nz/
> 
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> 
> 
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