Exposure
ID
GRAVI.2021-05-31T08:01:38.271_2
Header ID
GRAVI.2021-05-31T08:01:38.271
Date updated
2021-05-31 08:17:39 UTC+0000
Release date
2022-05-31 08:17:39 UTC+0000
UTC Start
2021-05-31 08:01:38.271
UTC End
2021-05-31 08:06:58.271
MJD Start
59365.33447073
MJD End
59365.3381744337
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.002944
Ambient temperature (°C)
10.22
Seeing (arcsec)
0.795
Observation
ID
47463
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
35598
Name
IRS16C
RA
266.417116666667
DEC
-29.0076491944444
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 53.5040 53.2570 37.1000 37.5000
U1-U3 95.4800 94.9120 43.4000 43.7000
U1-U4 114.8140 113.5030 73.4120 73.9120
U2-U3 42.7010 42.3750 51.3000 51.6000
U2-U4 78.3680 77.4180 97.2420 98.0290
U3-U4 57.5430 57.1280 129.4690 130.5090
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 59365.33447073
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.4168
DEC -29.00714
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 53.504
HIERARCH ESO ISS PBL12 END 53.257
HIERARCH ESO ISS PBLA12 START 37.1
HIERARCH ESO ISS PBLA12 END 37.5
HIERARCH ESO ISS PBL13 START 95.48
HIERARCH ESO ISS PBL13 END 94.912
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.7
HIERARCH ESO ISS PBL14 START 114.814
HIERARCH ESO ISS PBL14 END 113.503
HIERARCH ESO ISS PBLA14 START 73.412
HIERARCH ESO ISS PBLA14 END 73.912
HIERARCH ESO ISS PBL23 START 42.701
HIERARCH ESO ISS PBL23 END 42.375
HIERARCH ESO ISS PBLA23 START 51.3
HIERARCH ESO ISS PBLA23 END 51.6
HIERARCH ESO ISS PBL24 START 78.368
HIERARCH ESO ISS PBL24 END 77.418
HIERARCH ESO ISS PBLA24 START 97.242
HIERARCH ESO ISS PBLA24 END 98.029
HIERARCH ESO ISS PBL34 START 57.543
HIERARCH ESO ISS PBL34 END 57.128
HIERARCH ESO ISS PBLA34 START 129.469
HIERARCH ESO ISS PBLA34 END 130.509
HIERARCH ESO ISS AMBI TAU0 START 0.002664
HIERARCH ESO ISS AMBI TAU0 END 0.003224
HIERARCH ESO ISS AMBI TEMP 10.22
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.78
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371