Exposure
ID
GRAVI.2021-05-31T05:58:37.961_1
Header ID
GRAVI.2021-05-31T05:58:37.961
Date updated
2021-05-31 06:10:29 UTC+0000
Release date
2022-05-31 06:10:29 UTC+0000
UTC Start
2021-05-31 05:58:37.961
UTC End
2021-05-31 06:03:57.961
MJD Start
59365.24905048
MJD End
59365.2527541837
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0018475
Ambient temperature (°C)
10.18
Seeing (arcsec)
1.195
Observation
ID
47500
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
35629
Name
S2
RA
266.4168
DEC
-29.00714
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 56.3850 56.3380 26.7000 27.3000
U1-U3 102.1340 102.0330 33.1000 33.7000
U1-U4 129.9980 129.8310 61.1490 61.8060
U2-U3 46.5170 46.4630 40.8000 41.4000
U2-U4 89.3790 89.2930 82.0510 82.7410
U3-U4 62.4700 62.4660 111.4680 112.1660
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 59365.24905048
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.4168
DEC -29.00714
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 56.385
HIERARCH ESO ISS PBL12 END 56.338
HIERARCH ESO ISS PBLA12 START 26.7
HIERARCH ESO ISS PBLA12 END 27.3
HIERARCH ESO ISS PBL13 START 102.134
HIERARCH ESO ISS PBL13 END 102.033
HIERARCH ESO ISS PBLA13 START 33.1
HIERARCH ESO ISS PBLA13 END 33.7
HIERARCH ESO ISS PBL14 START 129.998
HIERARCH ESO ISS PBL14 END 129.831
HIERARCH ESO ISS PBLA14 START 61.149
HIERARCH ESO ISS PBLA14 END 61.806
HIERARCH ESO ISS PBL23 START 46.517
HIERARCH ESO ISS PBL23 END 46.463
HIERARCH ESO ISS PBLA23 START 40.8
HIERARCH ESO ISS PBLA23 END 41.4
HIERARCH ESO ISS PBL24 START 89.379
HIERARCH ESO ISS PBL24 END 89.293
HIERARCH ESO ISS PBLA24 START 82.051
HIERARCH ESO ISS PBLA24 END 82.741
HIERARCH ESO ISS PBL34 START 62.47
HIERARCH ESO ISS PBL34 END 62.466
HIERARCH ESO ISS PBLA34 START 111.468
HIERARCH ESO ISS PBLA34 END 112.166
HIERARCH ESO ISS AMBI TAU0 START 0.00188
HIERARCH ESO ISS AMBI TAU0 END 0.001815
HIERARCH ESO ISS AMBI TEMP 10.18
HIERARCH ESO ISS AMBI FWHM START 1.15
HIERARCH ESO ISS AMBI FWHM END 1.24
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371