Exposure
ID
GRAVI.2021-05-25T08:40:39.274_1
Header ID
GRAVI.2021-05-25T08:40:39.274
Date updated
2021-05-25 08:55:15 UTC+0000
Release date
2022-05-25 08:55:14 UTC+0000
UTC Start
2021-05-25 08:40:39.274
UTC End
2021-05-25 08:45:59.274
MJD Start
59359.36156567
MJD End
59359.3652693737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0033475
Ambient temperature (°C)
11.96
Seeing (arcsec)
0.985
Observation
ID
47464
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
35600
Name
S2
RA
266.417087
DEC
-29.00718
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 52.8110 52.5320 38.0000 38.3000
U1-U3 93.8870 93.2470 44.3000 44.6000
U1-U4 111.1520 109.6900 74.7560 75.2500
U2-U3 41.7880 41.4220 52.2000 52.5000
U2-U4 75.7250 74.6790 99.4020 100.2370
U3-U4 56.4030 55.9640 132.3340 133.4470
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 59359.36156567
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.417087
DEC -29.00718
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 52.811
HIERARCH ESO ISS PBL12 END 52.532
HIERARCH ESO ISS PBLA12 START 38.0
HIERARCH ESO ISS PBLA12 END 38.3
HIERARCH ESO ISS PBL13 START 93.887
HIERARCH ESO ISS PBL13 END 93.247
HIERARCH ESO ISS PBLA13 START 44.3
HIERARCH ESO ISS PBLA13 END 44.6
HIERARCH ESO ISS PBL14 START 111.152
HIERARCH ESO ISS PBL14 END 109.69
HIERARCH ESO ISS PBLA14 START 74.756
HIERARCH ESO ISS PBLA14 END 75.25
HIERARCH ESO ISS PBL23 START 41.788
HIERARCH ESO ISS PBL23 END 41.422
HIERARCH ESO ISS PBLA23 START 52.2
HIERARCH ESO ISS PBLA23 END 52.5
HIERARCH ESO ISS PBL24 START 75.725
HIERARCH ESO ISS PBL24 END 74.679
HIERARCH ESO ISS PBLA24 START 99.402
HIERARCH ESO ISS PBLA24 END 100.237
HIERARCH ESO ISS PBL34 START 56.403
HIERARCH ESO ISS PBL34 END 55.964
HIERARCH ESO ISS PBLA34 START 132.334
HIERARCH ESO ISS PBLA34 END 133.447
HIERARCH ESO ISS AMBI TAU0 START 0.003078
HIERARCH ESO ISS AMBI TAU0 END 0.003617
HIERARCH ESO ISS AMBI TEMP 11.96
HIERARCH ESO ISS AMBI FWHM START 1.06
HIERARCH ESO ISS AMBI FWHM END 0.91
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371