Exposure
ID
GRAVI.2021-05-30T07:29:17.633_1
Header ID
GRAVI.2021-05-30T07:29:17.633
Date updated
2021-05-30 07:45:31 UTC+0000
Release date
2022-05-30 07:45:31 UTC+0000
UTC Start
2021-05-30 07:29:17.633
UTC End
2021-05-30 07:34:37.633
MJD Start
59364.31200964
MJD End
59364.3157133437
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.006389
Ambient temperature (°C)
9.99
Seeing (arcsec)
0.56
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 54.8170 54.6390 34.6000 35.1000
U1-U3 98.5180 98.1050 41.0000 41.4000
U1-U4 121.8840 120.9170 70.1270 70.6580
U2-U3 44.4520 44.2130 48.8000 49.2000
U2-U4 83.5520 82.8380 92.5170 93.2350
U3-U4 59.8930 59.5620 123.3660 124.2720
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 59364.31200964
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 54.817
HIERARCH ESO ISS PBL12 END 54.639
HIERARCH ESO ISS PBLA12 START 34.6
HIERARCH ESO ISS PBLA12 END 35.1
HIERARCH ESO ISS PBL13 START 98.518
HIERARCH ESO ISS PBL13 END 98.105
HIERARCH ESO ISS PBLA13 START 41.0
HIERARCH ESO ISS PBLA13 END 41.4
HIERARCH ESO ISS PBL14 START 121.884
HIERARCH ESO ISS PBL14 END 120.917
HIERARCH ESO ISS PBLA14 START 70.127
HIERARCH ESO ISS PBLA14 END 70.658
HIERARCH ESO ISS PBL23 START 44.452
HIERARCH ESO ISS PBL23 END 44.213
HIERARCH ESO ISS PBLA23 START 48.8
HIERARCH ESO ISS PBLA23 END 49.2
HIERARCH ESO ISS PBL24 START 83.552
HIERARCH ESO ISS PBL24 END 82.838
HIERARCH ESO ISS PBLA24 START 92.517
HIERARCH ESO ISS PBLA24 END 93.235
HIERARCH ESO ISS PBL34 START 59.893
HIERARCH ESO ISS PBL34 END 59.562
HIERARCH ESO ISS PBLA34 START 123.366
HIERARCH ESO ISS PBLA34 END 124.272
HIERARCH ESO ISS AMBI TAU0 START 0.007158
HIERARCH ESO ISS AMBI TAU0 END 0.00562
HIERARCH ESO ISS AMBI TEMP 9.99
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.58
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371