Exposure
ID
GRAVI.2021-06-21T06:38:25.817_1
Header ID
GRAVI.2021-06-21T06:38:25.817
Date updated
2021-06-21 06:55:43 UTC+0000
Release date
2022-06-21 06:55:42 UTC+0000
UTC Start
2021-06-21 06:38:25.817
UTC End
2021-06-21 06:43:45.817
MJD Start
59386.2766877
MJD End
59386.2803914037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0027795
Ambient temperature (°C)
8.84
Seeing (arcsec)
0.66
Observation
ID
47542
Category
science
Program ID
105.20B2.003
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
35655
Name
S2
RA
266.416992
DEC
-29.00736
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 53.5310 53.2840 37.1000 37.4000
U1-U3 95.5430 94.9740 43.4000 43.7000
U1-U4 114.9580 113.6460 73.3560 73.8590
U2-U3 42.7370 42.4110 51.3000 51.6000
U2-U4 78.4720 77.5210 97.1540 97.9440
U3-U4 57.5890 57.1730 129.3540 130.3970
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59386.2766877
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416992
DEC -29.00736
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 53.531
HIERARCH ESO ISS PBL12 END 53.284
HIERARCH ESO ISS PBLA12 START 37.1
HIERARCH ESO ISS PBLA12 END 37.4
HIERARCH ESO ISS PBL13 START 95.543
HIERARCH ESO ISS PBL13 END 94.974
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.7
HIERARCH ESO ISS PBL14 START 114.958
HIERARCH ESO ISS PBL14 END 113.646
HIERARCH ESO ISS PBLA14 START 73.356
HIERARCH ESO ISS PBLA14 END 73.859
HIERARCH ESO ISS PBL23 START 42.737
HIERARCH ESO ISS PBL23 END 42.411
HIERARCH ESO ISS PBLA23 START 51.3
HIERARCH ESO ISS PBLA23 END 51.6
HIERARCH ESO ISS PBL24 START 78.472
HIERARCH ESO ISS PBL24 END 77.521
HIERARCH ESO ISS PBLA24 START 97.154
HIERARCH ESO ISS PBLA24 END 97.944
HIERARCH ESO ISS PBL34 START 57.589
HIERARCH ESO ISS PBL34 END 57.173
HIERARCH ESO ISS PBLA34 START 129.354
HIERARCH ESO ISS PBLA34 END 130.397
HIERARCH ESO ISS AMBI TAU0 START 0.002741
HIERARCH ESO ISS AMBI TAU0 END 0.002818
HIERARCH ESO ISS AMBI TEMP 8.84
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.69
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371