Exposure
ID
GRAVI.2021-05-23T07:28:54.603_1
Header ID
GRAVI.2021-05-23T07:28:54.603
Date updated
2021-05-23 07:45:25 UTC+0000
Release date
2022-05-23 07:45:24 UTC+0000
UTC Start
2021-05-23 07:28:54.603
UTC End
2021-05-23 07:34:14.603
MJD Start
59357.31174309
MJD End
59357.3154467937
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0062445
Ambient temperature (°C)
11.4
Seeing (arcsec)
0.34
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 55.5440 55.4140 32.4000 32.9000
U1-U3 100.2080 99.9080 38.7000 39.2000
U1-U4 125.8370 125.1360 67.4360 67.9980
U2-U3 45.4280 45.2540 46.5000 47.0000
U2-U4 86.4770 85.9590 89.0890 89.7780
U3-U4 61.2640 61.0210 119.1790 120.0010
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 59357.31174309
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 55.544
HIERARCH ESO ISS PBL12 END 55.414
HIERARCH ESO ISS PBLA12 START 32.4
HIERARCH ESO ISS PBLA12 END 32.9
HIERARCH ESO ISS PBL13 START 100.208
HIERARCH ESO ISS PBL13 END 99.908
HIERARCH ESO ISS PBLA13 START 38.7
HIERARCH ESO ISS PBLA13 END 39.2
HIERARCH ESO ISS PBL14 START 125.837
HIERARCH ESO ISS PBL14 END 125.136
HIERARCH ESO ISS PBLA14 START 67.436
HIERARCH ESO ISS PBLA14 END 67.998
HIERARCH ESO ISS PBL23 START 45.428
HIERARCH ESO ISS PBL23 END 45.254
HIERARCH ESO ISS PBLA23 START 46.5
HIERARCH ESO ISS PBLA23 END 47.0
HIERARCH ESO ISS PBL24 START 86.477
HIERARCH ESO ISS PBL24 END 85.959
HIERARCH ESO ISS PBLA24 START 89.089
HIERARCH ESO ISS PBLA24 END 89.778
HIERARCH ESO ISS PBL34 START 61.264
HIERARCH ESO ISS PBL34 END 61.021
HIERARCH ESO ISS PBLA34 START 119.179
HIERARCH ESO ISS PBLA34 END 120.001
HIERARCH ESO ISS AMBI TAU0 START 0.006601
HIERARCH ESO ISS AMBI TAU0 END 0.005888
HIERARCH ESO ISS AMBI TEMP 11.4
HIERARCH ESO ISS AMBI FWHM START 0.34
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