Exposure
ID
GRAVI.2021-06-20T05:40:51.879_1
Header ID
GRAVI.2021-06-20T05:40:51.879
Date updated
2021-06-20 05:55:31 UTC+0000
Release date
2021-06-20 05:40:51 UTC+0000
UTC Start
2021-06-20 05:40:51.879
UTC End
2021-06-20 05:44:03.879
MJD Start
59385.23671156
MJD End
59385.2389337822
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.001949
Ambient temperature (°C)
9.8
Seeing (arcsec)
1.54
Observation
ID
47539
Category
calibrator
Program ID
105.20B2.003
Program Title
THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ PERRIN/ STRAUBMEIER/ ROUSSELET-PERRAUT/ GARCIA/ BRANDNER/ GENZEL/ ECKART/ PAUMARD/ CL'ENET/ GAO/ HABIBI/ HORROBIN/ KERVELLA/ OTT/ WIDMANN/ VON FELLENBERG/ HENNING/ PFUHL/ WAISBERG/ DEXTER/ DE ZEEUW/ AMORIM
Target
ID
35652
Name
WDSJ19329-4647
RA
293.224019
DEC
-46.77805
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 54.1460 54.0740 22.5000 23.0000
U1-U3 98.9980 98.8540 28.8000 29.3000
U1-U4 129.7610 129.6560 55.3350 55.9850
U2-U3 45.5650 45.4970 36.2000 36.8000
U2-U4 89.2570 89.3120 74.5540 75.2450
U3-U4 60.5160 60.6810 102.3920 103.0380
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 59385.23671156
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 183671
HIERARCH ESO INS SOBJ NAME WDSJ19329-4647
RA 293.224019
DEC -46.77805
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 54.146
HIERARCH ESO ISS PBL12 END 54.074
HIERARCH ESO ISS PBLA12 START 22.5
HIERARCH ESO ISS PBLA12 END 23.0
HIERARCH ESO ISS PBL13 START 98.998
HIERARCH ESO ISS PBL13 END 98.854
HIERARCH ESO ISS PBLA13 START 28.8
HIERARCH ESO ISS PBLA13 END 29.3
HIERARCH ESO ISS PBL14 START 129.761
HIERARCH ESO ISS PBL14 END 129.656
HIERARCH ESO ISS PBLA14 START 55.335
HIERARCH ESO ISS PBLA14 END 55.985
HIERARCH ESO ISS PBL23 START 45.565
HIERARCH ESO ISS PBL23 END 45.497
HIERARCH ESO ISS PBLA23 START 36.2
HIERARCH ESO ISS PBLA23 END 36.8
HIERARCH ESO ISS PBL24 START 89.257
HIERARCH ESO ISS PBL24 END 89.312
HIERARCH ESO ISS PBLA24 START 74.554
HIERARCH ESO ISS PBLA24 END 75.245
HIERARCH ESO ISS PBL34 START 60.516
HIERARCH ESO ISS PBL34 END 60.681
HIERARCH ESO ISS PBLA34 START 102.392
HIERARCH ESO ISS PBLA34 END 103.038
HIERARCH ESO ISS AMBI TAU0 START 0.001949
HIERARCH ESO ISS AMBI TAU0 END 0.001949
HIERARCH ESO ISS AMBI TEMP 9.8
HIERARCH ESO ISS AMBI FWHM START 1.74
HIERARCH ESO ISS AMBI FWHM END 1.34
HIERARCH ESO FT ROBJ NAME WDSJ19329-4647
HIERARCH ESO FT ROBJ ALPHA 193252.852
HIERARCH ESO FT ROBJ DELTA -464637.874