Exposure
ID
GRAVI.2021-05-29T06:19:28.526_1
Header ID
GRAVI.2021-05-29T06:19:28.526
Date updated
2021-05-29 06:35:26 UTC+0000
Release date
2022-05-29 06:35:26 UTC+0000
UTC Start
2021-05-29 06:19:28.526
UTC End
2021-05-29 06:24:48.526
MJD Start
59363.26352461
MJD End
59363.2672283137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0043505
Ambient temperature (°C)
10.48
Seeing (arcsec)
0.505
Observation
ID
47479
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
35611
Name
S2
RA
266.416817
DEC
-29.00713
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 56.2690 56.2060 28.1000 28.6000
U1-U3 101.8790 101.7380 34.4000 35.0000
U1-U4 129.5480 129.2670 62.6130 63.2480
U2-U3 46.3800 46.3020 42.2000 42.8000
U2-U4 89.1230 88.9410 83.6010 84.2870
U3-U4 62.4230 62.3610 113.0550 113.7790
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 59363.26352461
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416817
DEC -29.00713
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 56.269
HIERARCH ESO ISS PBL12 END 56.206
HIERARCH ESO ISS PBLA12 START 28.1
HIERARCH ESO ISS PBLA12 END 28.6
HIERARCH ESO ISS PBL13 START 101.879
HIERARCH ESO ISS PBL13 END 101.738
HIERARCH ESO ISS PBLA13 START 34.4
HIERARCH ESO ISS PBLA13 END 35.0
HIERARCH ESO ISS PBL14 START 129.548
HIERARCH ESO ISS PBL14 END 129.267
HIERARCH ESO ISS PBLA14 START 62.613
HIERARCH ESO ISS PBLA14 END 63.248
HIERARCH ESO ISS PBL23 START 46.38
HIERARCH ESO ISS PBL23 END 46.302
HIERARCH ESO ISS PBLA23 START 42.2
HIERARCH ESO ISS PBLA23 END 42.8
HIERARCH ESO ISS PBL24 START 89.123
HIERARCH ESO ISS PBL24 END 88.941
HIERARCH ESO ISS PBLA24 START 83.601
HIERARCH ESO ISS PBLA24 END 84.287
HIERARCH ESO ISS PBL34 START 62.423
HIERARCH ESO ISS PBL34 END 62.361
HIERARCH ESO ISS PBLA34 START 113.055
HIERARCH ESO ISS PBLA34 END 113.779
HIERARCH ESO ISS AMBI TAU0 START 0.004626
HIERARCH ESO ISS AMBI TAU0 END 0.004075
HIERARCH ESO ISS AMBI TEMP 10.48
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.54
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371