Exposure
ID
GRAVI.2021-05-31T04:21:10.715_1
Header ID
GRAVI.2021-05-31T04:21:10.715
Date updated
2021-05-31 04:35:15 UTC+0000
Release date
2022-05-31 04:35:14 UTC+0000
UTC Start
2021-05-31 04:21:10.715
UTC End
2021-05-31 04:26:30.715
MJD Start
59365.18137402
MJD End
59365.1850777237
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0031985
Ambient temperature (°C)
10.18
Seeing (arcsec)
0.835
Observation
ID
47500
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
35629
Name
S2
RA
266.4168
DEC
-29.00714
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 56.4740 56.4910 15.0000 15.7000
U1-U3 101.9840 102.0570 20.9000 21.7000
U1-U4 126.2530 126.7550 47.9770 48.8720
U2-U3 46.1880 46.2540 28.2000 29.1000
U2-U4 84.6840 85.2540 69.2820 70.1170
U3-U4 58.3710 58.8340 100.6080 101.2140
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 59365.18137402
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.4168
DEC -29.00714
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 56.474
HIERARCH ESO ISS PBL12 END 56.491
HIERARCH ESO ISS PBLA12 START 15.0
HIERARCH ESO ISS PBLA12 END 15.7
HIERARCH ESO ISS PBL13 START 101.984
HIERARCH ESO ISS PBL13 END 102.057
HIERARCH ESO ISS PBLA13 START 20.9
HIERARCH ESO ISS PBLA13 END 21.7
HIERARCH ESO ISS PBL14 START 126.253
HIERARCH ESO ISS PBL14 END 126.755
HIERARCH ESO ISS PBLA14 START 47.977
HIERARCH ESO ISS PBLA14 END 48.872
HIERARCH ESO ISS PBL23 START 46.188
HIERARCH ESO ISS PBL23 END 46.254
HIERARCH ESO ISS PBLA23 START 28.2
HIERARCH ESO ISS PBLA23 END 29.1
HIERARCH ESO ISS PBL24 START 84.684
HIERARCH ESO ISS PBL24 END 85.254
HIERARCH ESO ISS PBLA24 START 69.282
HIERARCH ESO ISS PBLA24 END 70.117
HIERARCH ESO ISS PBL34 START 58.371
HIERARCH ESO ISS PBL34 END 58.834
HIERARCH ESO ISS PBLA34 START 100.608
HIERARCH ESO ISS PBLA34 END 101.214
HIERARCH ESO ISS AMBI TAU0 START 0.003226
HIERARCH ESO ISS AMBI TAU0 END 0.003171
HIERARCH ESO ISS AMBI TEMP 10.18
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.83
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371