Exposure
ID
GRAVI.2021-05-24T07:33:29.900_1
Header ID
GRAVI.2021-05-24T07:33:29.900
Date updated
2021-05-24 07:45:30 UTC+0000
Release date
2022-05-24 07:45:30 UTC+0000
UTC Start
2021-05-24 07:33:29.900
UTC End
2021-05-24 07:38:49.900
MJD Start
59358.3149294
MJD End
59358.3186331037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0049455
Ambient temperature (°C)
11.91
Seeing (arcsec)
0.57
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 55.3470 55.2030 33.1000 33.6000
U1-U3 99.7510 99.4150 39.5000 39.9000
U1-U4 124.7700 123.9840 68.2720 68.8270
U2-U3 45.1640 44.9700 47.3000 47.7000
U2-U4 85.6880 85.1060 90.1190 90.8200
U3-U4 60.8940 60.6210 120.4120 121.2630
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 59358.3149294
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 55.347
HIERARCH ESO ISS PBL12 END 55.203
HIERARCH ESO ISS PBLA12 START 33.1
HIERARCH ESO ISS PBLA12 END 33.6
HIERARCH ESO ISS PBL13 START 99.751
HIERARCH ESO ISS PBL13 END 99.415
HIERARCH ESO ISS PBLA13 START 39.5
HIERARCH ESO ISS PBLA13 END 39.9
HIERARCH ESO ISS PBL14 START 124.77
HIERARCH ESO ISS PBL14 END 123.984
HIERARCH ESO ISS PBLA14 START 68.272
HIERARCH ESO ISS PBLA14 END 68.827
HIERARCH ESO ISS PBL23 START 45.164
HIERARCH ESO ISS PBL23 END 44.97
HIERARCH ESO ISS PBLA23 START 47.3
HIERARCH ESO ISS PBLA23 END 47.7
HIERARCH ESO ISS PBL24 START 85.688
HIERARCH ESO ISS PBL24 END 85.106
HIERARCH ESO ISS PBLA24 START 90.119
HIERARCH ESO ISS PBLA24 END 90.82
HIERARCH ESO ISS PBL34 START 60.894
HIERARCH ESO ISS PBL34 END 60.621
HIERARCH ESO ISS PBLA34 START 120.412
HIERARCH ESO ISS PBLA34 END 121.263
HIERARCH ESO ISS AMBI TAU0 START 0.005396
HIERARCH ESO ISS AMBI TAU0 END 0.004495
HIERARCH ESO ISS AMBI TEMP 11.91
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.68
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371