Exposure
ID
GRAVI.2021-05-25T07:17:48.065_1
Header ID
GRAVI.2021-05-25T07:17:48.065
Date updated
2021-05-25 07:30:41 UTC+0000
Release date
2022-05-25 07:30:41 UTC+0000
UTC Start
2021-05-25 07:17:48.065
UTC End
2021-05-25 07:23:08.065
MJD Start
59359.30402853
MJD End
59359.3077322337
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0051775
Ambient temperature (°C)
12.14
Seeing (arcsec)
0.435
Observation
ID
47462
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
35599
Name
S2
RA
266.416844
DEC
-29.00706
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 55.6130 55.4880 32.1000 32.6000
U1-U3 100.3680 100.0780 38.5000 39.0000
U1-U4 126.2080 125.5340 67.1160 67.6850
U2-U3 45.5200 45.3530 46.3000 46.8000
U2-U4 86.7500 86.2530 88.7020 89.3930
U3-U4 61.3920 61.1590 118.7220 119.5400
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 59359.30402853
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416844
DEC -29.00706
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 55.613
HIERARCH ESO ISS PBL12 END 55.488
HIERARCH ESO ISS PBLA12 START 32.1
HIERARCH ESO ISS PBLA12 END 32.6
HIERARCH ESO ISS PBL13 START 100.368
HIERARCH ESO ISS PBL13 END 100.078
HIERARCH ESO ISS PBLA13 START 38.5
HIERARCH ESO ISS PBLA13 END 39.0
HIERARCH ESO ISS PBL14 START 126.208
HIERARCH ESO ISS PBL14 END 125.534
HIERARCH ESO ISS PBLA14 START 67.116
HIERARCH ESO ISS PBLA14 END 67.685
HIERARCH ESO ISS PBL23 START 45.52
HIERARCH ESO ISS PBL23 END 45.353
HIERARCH ESO ISS PBLA23 START 46.3
HIERARCH ESO ISS PBLA23 END 46.8
HIERARCH ESO ISS PBL24 START 86.75
HIERARCH ESO ISS PBL24 END 86.253
HIERARCH ESO ISS PBLA24 START 88.702
HIERARCH ESO ISS PBLA24 END 89.393
HIERARCH ESO ISS PBL34 START 61.392
HIERARCH ESO ISS PBL34 END 61.159
HIERARCH ESO ISS PBLA34 START 118.722
HIERARCH ESO ISS PBLA34 END 119.54
HIERARCH ESO ISS AMBI TAU0 START 0.004652
HIERARCH ESO ISS AMBI TAU0 END 0.005703
HIERARCH ESO ISS AMBI TEMP 12.14
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.42
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371