Exposure
ID
GRAVI.2021-05-24T05:31:26.593_1
Header ID
GRAVI.2021-05-24T05:31:26.593
Date updated
2021-05-24 05:50:40 UTC+0000
Release date
2022-05-24 05:50:40 UTC+0000
UTC Start
2021-05-24 05:31:26.593
UTC End
2021-05-24 05:36:46.593
MJD Start
59358.2301689
MJD End
59358.2338726037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.006081
Ambient temperature (°C)
12.5
Seeing (arcsec)
0.4
Observation
ID
47457
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
35595
Name
S2
RA
266.416898
DEC
-29.00719
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 56.5590 56.5590 20.4000 21.1000
U1-U3 102.3950 102.4180 26.6000 27.4000
U1-U4 129.2760 129.5340 54.2750 55.0530
U2-U3 46.5710 46.5990 34.2000 34.9000
U2-U4 88.1160 88.4210 75.2160 75.9640
U3-U4 61.1630 61.4180 105.1990 105.8300
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 59358.2301689
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416898
DEC -29.00719
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 56.559
HIERARCH ESO ISS PBL12 END 56.559
HIERARCH ESO ISS PBLA12 START 20.4
HIERARCH ESO ISS PBLA12 END 21.1
HIERARCH ESO ISS PBL13 START 102.395
HIERARCH ESO ISS PBL13 END 102.418
HIERARCH ESO ISS PBLA13 START 26.6
HIERARCH ESO ISS PBLA13 END 27.4
HIERARCH ESO ISS PBL14 START 129.276
HIERARCH ESO ISS PBL14 END 129.534
HIERARCH ESO ISS PBLA14 START 54.275
HIERARCH ESO ISS PBLA14 END 55.053
HIERARCH ESO ISS PBL23 START 46.571
HIERARCH ESO ISS PBL23 END 46.599
HIERARCH ESO ISS PBLA23 START 34.2
HIERARCH ESO ISS PBLA23 END 34.9
HIERARCH ESO ISS PBL24 START 88.116
HIERARCH ESO ISS PBL24 END 88.421
HIERARCH ESO ISS PBLA24 START 75.216
HIERARCH ESO ISS PBLA24 END 75.964
HIERARCH ESO ISS PBL34 START 61.163
HIERARCH ESO ISS PBL34 END 61.418
HIERARCH ESO ISS PBLA34 START 105.199
HIERARCH ESO ISS PBLA34 END 105.83
HIERARCH ESO ISS AMBI TAU0 START 0.005923
HIERARCH ESO ISS AMBI TAU0 END 0.006239
HIERARCH ESO ISS AMBI TEMP 12.5
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.39
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371