Exposure
ID
GRAVI.2021-05-23T07:22:39.587_1
Header ID
GRAVI.2021-05-23T07:22:39.587
Date updated
2021-05-23 07:35:31 UTC+0000
Release date
2022-05-23 07:35:30 UTC+0000
UTC Start
2021-05-23 07:22:39.587
UTC End
2021-05-23 07:27:59.587
MJD Start
59357.30740263
MJD End
59357.3111063337
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0073875
Ambient temperature (°C)
11.32
Seeing (arcsec)
0.335
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 55.6740 55.5550 31.8000 32.3000
U1-U3 100.5120 100.2340 38.2000 38.7000
U1-U4 126.5420 125.8960 66.8130 67.3860
U2-U3 45.6030 45.4430 46.0000 46.5000
U2-U4 86.9950 86.5200 88.3390 89.0280
U3-U4 61.5060 61.2850 118.2970 119.1080
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 59357.30740263
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 55.674
HIERARCH ESO ISS PBL12 END 55.555
HIERARCH ESO ISS PBLA12 START 31.8
HIERARCH ESO ISS PBLA12 END 32.3
HIERARCH ESO ISS PBL13 START 100.512
HIERARCH ESO ISS PBL13 END 100.234
HIERARCH ESO ISS PBLA13 START 38.2
HIERARCH ESO ISS PBLA13 END 38.7
HIERARCH ESO ISS PBL14 START 126.542
HIERARCH ESO ISS PBL14 END 125.896
HIERARCH ESO ISS PBLA14 START 66.813
HIERARCH ESO ISS PBLA14 END 67.386
HIERARCH ESO ISS PBL23 START 45.603
HIERARCH ESO ISS PBL23 END 45.443
HIERARCH ESO ISS PBLA23 START 46.0
HIERARCH ESO ISS PBLA23 END 46.5
HIERARCH ESO ISS PBL24 START 86.995
HIERARCH ESO ISS PBL24 END 86.52
HIERARCH ESO ISS PBLA24 START 88.339
HIERARCH ESO ISS PBLA24 END 89.028
HIERARCH ESO ISS PBL34 START 61.506
HIERARCH ESO ISS PBL34 END 61.285
HIERARCH ESO ISS PBLA34 START 118.297
HIERARCH ESO ISS PBLA34 END 119.108
HIERARCH ESO ISS AMBI TAU0 START 0.008174
HIERARCH ESO ISS AMBI TAU0 END 0.006601
HIERARCH ESO ISS AMBI TEMP 11.32
HIERARCH ESO ISS AMBI FWHM START 0.33
HIERARCH ESO ISS AMBI FWHM END 0.34
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371