Exposure
ID
GRAVI.2024-07-18T04:23:36.668_1
Header ID
GRAVI.2024-07-18T04:23:36.668
Date updated
2024-07-18 08:50:34 UTC+0000
Release date
2025-07-18 08:50:31 UTC+0000
UTC Start
2024-07-18 04:23:36.668
UTC End
2024-07-18 04:29:36.668
MJD Start
60509.18306329
MJD End
60509.1872299567
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0088785
Ambient temperature (°C)
16.07
Seeing (arcsec)
0.47
Observation
ID
60146
Category
science
Program ID
113.268P.004
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44649
Name
SGRA
RA
266.416896
DEC
-29.00733
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 54.5700 54.3510 35.2000 35.7000
U1-U3 97.9440 97.4380 41.5000 42.0000
U1-U4 120.5430 119.3610 70.8550 71.4460
U2-U3 44.1200 43.8280 49.4000 49.9000
U2-U4 82.5630 81.6920 93.5050 94.3310
U3-U4 59.4350 59.0350 124.6150 125.6710
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60509.18306329
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416896
DEC -29.00733
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 54.57
HIERARCH ESO ISS PBL12 END 54.351
HIERARCH ESO ISS PBLA12 START 35.2
HIERARCH ESO ISS PBLA12 END 35.7
HIERARCH ESO ISS PBL13 START 97.944
HIERARCH ESO ISS PBL13 END 97.438
HIERARCH ESO ISS PBLA13 START 41.5
HIERARCH ESO ISS PBLA13 END 42.0
HIERARCH ESO ISS PBL14 START 120.543
HIERARCH ESO ISS PBL14 END 119.361
HIERARCH ESO ISS PBLA14 START 70.855
HIERARCH ESO ISS PBLA14 END 71.446
HIERARCH ESO ISS PBL23 START 44.12
HIERARCH ESO ISS PBL23 END 43.828
HIERARCH ESO ISS PBLA23 START 49.4
HIERARCH ESO ISS PBLA23 END 49.9
HIERARCH ESO ISS PBL24 START 82.563
HIERARCH ESO ISS PBL24 END 81.692
HIERARCH ESO ISS PBLA24 START 93.505
HIERARCH ESO ISS PBLA24 END 94.331
HIERARCH ESO ISS PBL34 START 59.435
HIERARCH ESO ISS PBL34 END 59.035
HIERARCH ESO ISS PBLA34 START 124.615
HIERARCH ESO ISS PBLA34 END 125.671
HIERARCH ESO ISS AMBI TAU0 START 0.008266
HIERARCH ESO ISS AMBI TAU0 END 0.009491
HIERARCH ESO ISS AMBI TEMP 16.07
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.39
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541