Exposure
ID
GRAVI.2021-05-30T04:39:26.205_1
Header ID
GRAVI.2021-05-30T04:39:26.205
Date updated
2021-05-30 04:55:24 UTC+0000
Release date
2022-05-30 04:55:24 UTC+0000
UTC Start
2021-05-30 04:39:26.205
UTC End
2021-05-30 04:44:46.205
MJD Start
59364.1940533
MJD End
59364.1977570037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0054945
Ambient temperature (°C)
9.89
Seeing (arcsec)
0.67
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 56.5140 56.5280 16.8000 17.6000
U1-U3 102.1580 102.2200 22.9000 23.7000
U1-U4 127.4610 127.8930 50.1890 51.0460
U2-U3 46.3450 46.4010 30.3000 31.1000
U2-U4 86.0510 86.5390 71.3500 72.1540
U3-U4 59.4790 59.8750 102.1310 102.7440
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 59364.1940533
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 56.514
HIERARCH ESO ISS PBL12 END 56.528
HIERARCH ESO ISS PBLA12 START 16.8
HIERARCH ESO ISS PBLA12 END 17.6
HIERARCH ESO ISS PBL13 START 102.158
HIERARCH ESO ISS PBL13 END 102.22
HIERARCH ESO ISS PBLA13 START 22.9
HIERARCH ESO ISS PBLA13 END 23.7
HIERARCH ESO ISS PBL14 START 127.461
HIERARCH ESO ISS PBL14 END 127.893
HIERARCH ESO ISS PBLA14 START 50.189
HIERARCH ESO ISS PBLA14 END 51.046
HIERARCH ESO ISS PBL23 START 46.345
HIERARCH ESO ISS PBL23 END 46.401
HIERARCH ESO ISS PBLA23 START 30.3
HIERARCH ESO ISS PBLA23 END 31.1
HIERARCH ESO ISS PBL24 START 86.051
HIERARCH ESO ISS PBL24 END 86.539
HIERARCH ESO ISS PBLA24 START 71.35
HIERARCH ESO ISS PBLA24 END 72.154
HIERARCH ESO ISS PBL34 START 59.479
HIERARCH ESO ISS PBL34 END 59.875
HIERARCH ESO ISS PBLA34 START 102.131
HIERARCH ESO ISS PBLA34 END 102.744
HIERARCH ESO ISS AMBI TAU0 START 0.004913
HIERARCH ESO ISS AMBI TAU0 END 0.006076
HIERARCH ESO ISS AMBI TEMP 9.89
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.63
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371