Exposure
ID
GRAVI.2021-05-31T04:14:55.700_1
Header ID
GRAVI.2021-05-31T04:14:55.700
Date updated
2021-05-31 04:30:31 UTC+0000
Release date
2022-05-31 04:30:31 UTC+0000
UTC Start
2021-05-31 04:14:55.700
UTC End
2021-05-31 04:20:15.700
MJD Start
59365.17703356
MJD End
59365.1807372637
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.002952
Ambient temperature (°C)
10.09
Seeing (arcsec)
0.89
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 56.4540 56.4720 14.1000 14.9000
U1-U3 101.9000 101.9770 20.0000 20.8000
U1-U4 125.6700 126.2040 46.9720 47.8920
U2-U3 46.1130 46.1820 27.3000 28.1000
U2-U4 84.0210 84.6290 68.3460 69.2030
U3-U4 57.8300 58.3260 99.9430 100.5520
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 59365.17703356
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 56.454
HIERARCH ESO ISS PBL12 END 56.472
HIERARCH ESO ISS PBLA12 START 14.1
HIERARCH ESO ISS PBLA12 END 14.9
HIERARCH ESO ISS PBL13 START 101.9
HIERARCH ESO ISS PBL13 END 101.977
HIERARCH ESO ISS PBLA13 START 20.0
HIERARCH ESO ISS PBLA13 END 20.8
HIERARCH ESO ISS PBL14 START 125.67
HIERARCH ESO ISS PBL14 END 126.204
HIERARCH ESO ISS PBLA14 START 46.972
HIERARCH ESO ISS PBLA14 END 47.892
HIERARCH ESO ISS PBL23 START 46.113
HIERARCH ESO ISS PBL23 END 46.182
HIERARCH ESO ISS PBLA23 START 27.3
HIERARCH ESO ISS PBLA23 END 28.1
HIERARCH ESO ISS PBL24 START 84.021
HIERARCH ESO ISS PBL24 END 84.629
HIERARCH ESO ISS PBLA24 START 68.346
HIERARCH ESO ISS PBLA24 END 69.203
HIERARCH ESO ISS PBL34 START 57.83
HIERARCH ESO ISS PBL34 END 58.326
HIERARCH ESO ISS PBLA34 START 99.943
HIERARCH ESO ISS PBLA34 END 100.552
HIERARCH ESO ISS AMBI TAU0 START 0.002678
HIERARCH ESO ISS AMBI TAU0 END 0.003226
HIERARCH ESO ISS AMBI TEMP 10.09
HIERARCH ESO ISS AMBI FWHM START 0.94
HIERARCH ESO ISS AMBI FWHM END 0.84
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371