Exposure
ID
GRAVI.2021-05-30T08:11:38.740_1
Header ID
GRAVI.2021-05-30T08:11:38.740
Date updated
2021-05-30 08:25:38 UTC+0000
Release date
2022-05-30 08:25:38 UTC+0000
UTC Start
2021-05-30 08:11:38.740
UTC End
2021-05-30 08:16:58.740
MJD Start
59364.3414206
MJD End
59364.3451243037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.004808
Ambient temperature (°C)
10.14
Seeing (arcsec)
0.585
Observation
ID
47490
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
35621
Name
S2
RA
266.41672
DEC
-29.00717
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 53.2410 52.9810 37.5000 37.8000
U1-U3 94.8750 94.2770 43.8000 44.1000
U1-U4 113.4190 112.0450 73.9450 74.4440
U2-U3 42.3540 42.0110 51.7000 52.0000
U2-U4 77.3580 76.3660 98.0790 98.8860
U3-U4 57.1020 56.6760 130.5760 131.6480
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 59364.3414206
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.41672
DEC -29.00717
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 53.241
HIERARCH ESO ISS PBL12 END 52.981
HIERARCH ESO ISS PBLA12 START 37.5
HIERARCH ESO ISS PBLA12 END 37.8
HIERARCH ESO ISS PBL13 START 94.875
HIERARCH ESO ISS PBL13 END 94.277
HIERARCH ESO ISS PBLA13 START 43.8
HIERARCH ESO ISS PBLA13 END 44.1
HIERARCH ESO ISS PBL14 START 113.419
HIERARCH ESO ISS PBL14 END 112.045
HIERARCH ESO ISS PBLA14 START 73.945
HIERARCH ESO ISS PBLA14 END 74.444
HIERARCH ESO ISS PBL23 START 42.354
HIERARCH ESO ISS PBL23 END 42.011
HIERARCH ESO ISS PBLA23 START 51.7
HIERARCH ESO ISS PBLA23 END 52.0
HIERARCH ESO ISS PBL24 START 77.358
HIERARCH ESO ISS PBL24 END 76.366
HIERARCH ESO ISS PBLA24 START 98.079
HIERARCH ESO ISS PBLA24 END 98.886
HIERARCH ESO ISS PBL34 START 57.102
HIERARCH ESO ISS PBL34 END 56.676
HIERARCH ESO ISS PBLA34 START 130.576
HIERARCH ESO ISS PBLA34 END 131.648
HIERARCH ESO ISS AMBI TAU0 START 0.004799
HIERARCH ESO ISS AMBI TAU0 END 0.004817
HIERARCH ESO ISS AMBI TEMP 10.14
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.55
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371