Exposure
ID
GRAVI.2021-05-23T08:35:42.772_1
Header ID
GRAVI.2021-05-23T08:35:42.772
Date updated
2021-05-23 08:50:15 UTC+0000
Release date
2022-05-23 08:50:14 UTC+0000
UTC Start
2021-05-23 08:35:42.772
UTC End
2021-05-23 08:41:02.772
MJD Start
59357.35813393
MJD End
59357.3618376337
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0083085
Ambient temperature (°C)
11.55
Seeing (arcsec)
0.32
Observation
ID
47450
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
35589
Name
S2
RA
266.416924
DEC
-29.00736
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 53.3920 53.1390 37.3000 37.6000
U1-U3 95.2230 94.6390 43.6000 43.9000
U1-U4 114.2190 112.8770 73.6420 74.1440
U2-U3 42.5540 42.2190 51.5000 51.8000
U2-U4 77.9370 76.9660 97.6010 98.3990
U3-U4 57.3540 56.9330 129.9430 131.0000
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 59357.35813393
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416924
DEC -29.00736
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 53.392
HIERARCH ESO ISS PBL12 END 53.139
HIERARCH ESO ISS PBLA12 START 37.3
HIERARCH ESO ISS PBLA12 END 37.6
HIERARCH ESO ISS PBL13 START 95.223
HIERARCH ESO ISS PBL13 END 94.639
HIERARCH ESO ISS PBLA13 START 43.6
HIERARCH ESO ISS PBLA13 END 43.9
HIERARCH ESO ISS PBL14 START 114.219
HIERARCH ESO ISS PBL14 END 112.877
HIERARCH ESO ISS PBLA14 START 73.642
HIERARCH ESO ISS PBLA14 END 74.144
HIERARCH ESO ISS PBL23 START 42.554
HIERARCH ESO ISS PBL23 END 42.219
HIERARCH ESO ISS PBLA23 START 51.5
HIERARCH ESO ISS PBLA23 END 51.8
HIERARCH ESO ISS PBL24 START 77.937
HIERARCH ESO ISS PBL24 END 76.966
HIERARCH ESO ISS PBLA24 START 97.601
HIERARCH ESO ISS PBLA24 END 98.399
HIERARCH ESO ISS PBL34 START 57.354
HIERARCH ESO ISS PBL34 END 56.933
HIERARCH ESO ISS PBLA34 START 129.943
HIERARCH ESO ISS PBLA34 END 131.0
HIERARCH ESO ISS AMBI TAU0 START 0.008475
HIERARCH ESO ISS AMBI TAU0 END 0.008142
HIERARCH ESO ISS AMBI TEMP 11.55
HIERARCH ESO ISS AMBI FWHM START 0.28
HIERARCH ESO ISS AMBI FWHM END 0.36
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371