Exposure
ID
GRAVI.2021-05-29T05:56:37.469_1
Header ID
GRAVI.2021-05-29T05:56:37.469
Date updated
2021-05-29 06:10:14 UTC+0000
Release date
2022-05-29 06:10:14 UTC+0000
UTC Start
2021-05-29 05:56:37.469
UTC End
2021-05-29 06:01:57.469
MJD Start
59363.24765589
MJD End
59363.2513595937
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0040955
Ambient temperature (°C)
10.32
Seeing (arcsec)
0.72
Observation
ID
47479
Category
science
Program ID
105.20B2.002
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
35611
Name
S2
RA
266.416817
DEC
-29.00713
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 56.4510 56.4150 25.6000 26.3000
U1-U3 102.2720 102.1970 32.0000 32.6000
U1-U4 130.1710 130.0880 59.9790 60.6550
U2-U3 46.5860 46.5490 39.7000 40.3000
U2-U4 89.4280 89.4150 80.8440 81.5380
U3-U4 62.4170 62.4570 110.2740 110.9560
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59363.24765589
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416817
DEC -29.00713
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 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 56.451
HIERARCH ESO ISS PBL12 END 56.415
HIERARCH ESO ISS PBLA12 START 25.6
HIERARCH ESO ISS PBLA12 END 26.3
HIERARCH ESO ISS PBL13 START 102.272
HIERARCH ESO ISS PBL13 END 102.197
HIERARCH ESO ISS PBLA13 START 32.0
HIERARCH ESO ISS PBLA13 END 32.6
HIERARCH ESO ISS PBL14 START 130.171
HIERARCH ESO ISS PBL14 END 130.088
HIERARCH ESO ISS PBLA14 START 59.979
HIERARCH ESO ISS PBLA14 END 60.655
HIERARCH ESO ISS PBL23 START 46.586
HIERARCH ESO ISS PBL23 END 46.549
HIERARCH ESO ISS PBLA23 START 39.7
HIERARCH ESO ISS PBLA23 END 40.3
HIERARCH ESO ISS PBL24 START 89.428
HIERARCH ESO ISS PBL24 END 89.415
HIERARCH ESO ISS PBLA24 START 80.844
HIERARCH ESO ISS PBLA24 END 81.538
HIERARCH ESO ISS PBL34 START 62.417
HIERARCH ESO ISS PBL34 END 62.457
HIERARCH ESO ISS PBLA34 START 110.274
HIERARCH ESO ISS PBLA34 END 110.956
HIERARCH ESO ISS AMBI TAU0 START 0.003962
HIERARCH ESO ISS AMBI TAU0 END 0.004229
HIERARCH ESO ISS AMBI TEMP 10.32
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.56
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371