Exposure
ID
GRAVI.2021-05-30T07:22:14.615_1
Header ID
GRAVI.2021-05-30T07:22:14.615
Date updated
2021-05-30 07:40:32 UTC+0000
Release date
2022-05-30 07:40:31 UTC+0000
UTC Start
2021-05-30 07:22:14.615
UTC End
2021-05-30 07:27:34.615
MJD Start
59364.3071136
MJD End
59364.3108173037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.005914
Ambient temperature (°C)
9.95
Seeing (arcsec)
0.545
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 55.0240 54.8580 34.1000 34.5000
U1-U3 99.0000 98.6140 40.4000 40.9000
U1-U4 123.0120 122.1080 69.4590 69.9990
U2-U3 44.7300 44.5070 48.3000 48.7000
U2-U4 84.3870 83.7180 91.6340 92.3460
U3-U4 60.2830 59.9700 122.2640 123.1520
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 59364.3071136
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 55.024
HIERARCH ESO ISS PBL12 END 54.858
HIERARCH ESO ISS PBLA12 START 34.1
HIERARCH ESO ISS PBLA12 END 34.5
HIERARCH ESO ISS PBL13 START 99.0
HIERARCH ESO ISS PBL13 END 98.614
HIERARCH ESO ISS PBLA13 START 40.4
HIERARCH ESO ISS PBLA13 END 40.9
HIERARCH ESO ISS PBL14 START 123.012
HIERARCH ESO ISS PBL14 END 122.108
HIERARCH ESO ISS PBLA14 START 69.459
HIERARCH ESO ISS PBLA14 END 69.999
HIERARCH ESO ISS PBL23 START 44.73
HIERARCH ESO ISS PBL23 END 44.507
HIERARCH ESO ISS PBLA23 START 48.3
HIERARCH ESO ISS PBLA23 END 48.7
HIERARCH ESO ISS PBL24 START 84.387
HIERARCH ESO ISS PBL24 END 83.718
HIERARCH ESO ISS PBLA24 START 91.634
HIERARCH ESO ISS PBLA24 END 92.346
HIERARCH ESO ISS PBL34 START 60.283
HIERARCH ESO ISS PBL34 END 59.97
HIERARCH ESO ISS PBLA34 START 122.264
HIERARCH ESO ISS PBLA34 END 123.152
HIERARCH ESO ISS AMBI TAU0 START 0.005926
HIERARCH ESO ISS AMBI TAU0 END 0.005902
HIERARCH ESO ISS AMBI TEMP 9.95
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.54
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371