Exposure
ID
GRAVI.2021-05-24T07:01:20.819_1
Header ID
GRAVI.2021-05-24T07:01:20.819
Date updated
2021-05-24 07:15:14 UTC+0000
Release date
2022-05-24 07:15:14 UTC+0000
UTC Start
2021-05-24 07:01:20.819
UTC End
2021-05-24 07:06:40.819
MJD Start
59358.29260207
MJD End
59358.2963057737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0051725
Ambient temperature (°C)
12.05
Seeing (arcsec)
0.5
Observation
ID
47457
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
35595
Name
S2
RA
266.416898
DEC
-29.00719
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 55.9830 55.8900 30.2000 30.8000
U1-U3 101.2280 101.0130 36.6000 37.2000
U1-U4 128.1710 127.6880 65.0250 65.6230
U2-U3 46.0140 45.8910 44.4000 44.9000
U2-U4 88.1790 87.8310 86.2590 86.9430
U3-U4 62.0460 61.8910 115.9260 116.6940
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 59358.29260207
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416898
DEC -29.00719
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 55.983
HIERARCH ESO ISS PBL12 END 55.89
HIERARCH ESO ISS PBLA12 START 30.2
HIERARCH ESO ISS PBLA12 END 30.8
HIERARCH ESO ISS PBL13 START 101.228
HIERARCH ESO ISS PBL13 END 101.013
HIERARCH ESO ISS PBLA13 START 36.6
HIERARCH ESO ISS PBLA13 END 37.2
HIERARCH ESO ISS PBL14 START 128.171
HIERARCH ESO ISS PBL14 END 127.688
HIERARCH ESO ISS PBLA14 START 65.025
HIERARCH ESO ISS PBLA14 END 65.623
HIERARCH ESO ISS PBL23 START 46.014
HIERARCH ESO ISS PBL23 END 45.891
HIERARCH ESO ISS PBLA23 START 44.4
HIERARCH ESO ISS PBLA23 END 44.9
HIERARCH ESO ISS PBL24 START 88.179
HIERARCH ESO ISS PBL24 END 87.831
HIERARCH ESO ISS PBLA24 START 86.259
HIERARCH ESO ISS PBLA24 END 86.943
HIERARCH ESO ISS PBL34 START 62.046
HIERARCH ESO ISS PBL34 END 61.891
HIERARCH ESO ISS PBLA34 START 115.926
HIERARCH ESO ISS PBLA34 END 116.694
HIERARCH ESO ISS AMBI TAU0 START 0.004394
HIERARCH ESO ISS AMBI TAU0 END 0.005951
HIERARCH ESO ISS AMBI TEMP 12.05
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.47
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371