Exposure
ID
GRAVI.2024-05-30T06:19:51.094_1
Header ID
GRAVI.2024-05-30T06:19:51.094
Date updated
2024-05-30 06:35:27 UTC+0000
Release date
2025-05-30 06:35:27 UTC+0000
UTC Start
2024-05-30 06:19:51.094
UTC End
2024-05-30 06:25:51.094
MJD Start
60460.26378581
MJD End
60460.2679524767
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0046455
Ambient temperature (°C)
15.96
Seeing (arcsec)
0.495
Observation
ID
59447
Category
science
Program ID
113.268P.002
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
44073
Name
SGRA
RA
266.416893
DEC
-29.00732
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 56.2120 56.1330 28.6000 29.2000
U1-U3 101.7510 101.5720 35.0000 35.6000
U1-U4 129.2940 128.9200 63.2180 63.9160
U2-U3 46.3090 46.2090 42.7000 43.4000
U2-U4 88.9580 88.7060 84.2530 85.0170
U3-U4 62.3670 62.2700 113.7410 114.5600
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60460.26378581
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16NW
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416893
DEC -29.00732
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 56.212
HIERARCH ESO ISS PBL12 END 56.133
HIERARCH ESO ISS PBLA12 START 28.6
HIERARCH ESO ISS PBLA12 END 29.2
HIERARCH ESO ISS PBL13 START 101.751
HIERARCH ESO ISS PBL13 END 101.572
HIERARCH ESO ISS PBLA13 START 35.0
HIERARCH ESO ISS PBLA13 END 35.6
HIERARCH ESO ISS PBL14 START 129.294
HIERARCH ESO ISS PBL14 END 128.92
HIERARCH ESO ISS PBLA14 START 63.218
HIERARCH ESO ISS PBLA14 END 63.916
HIERARCH ESO ISS PBL23 START 46.309
HIERARCH ESO ISS PBL23 END 46.209
HIERARCH ESO ISS PBLA23 START 42.7
HIERARCH ESO ISS PBLA23 END 43.4
HIERARCH ESO ISS PBL24 START 88.958
HIERARCH ESO ISS PBL24 END 88.706
HIERARCH ESO ISS PBLA24 START 84.253
HIERARCH ESO ISS PBLA24 END 85.017
HIERARCH ESO ISS PBL34 START 62.367
HIERARCH ESO ISS PBL34 END 62.27
HIERARCH ESO ISS PBLA34 START 113.741
HIERARCH ESO ISS PBLA34 END 114.56
HIERARCH ESO ISS AMBI TAU0 START 0.005482
HIERARCH ESO ISS AMBI TAU0 END 0.003809
HIERARCH ESO ISS AMBI TEMP 15.96
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.49
HIERARCH ESO FT ROBJ NAME IRS16NW
HIERARCH ESO FT ROBJ ALPHA 174540.0430
HIERARCH ESO FT ROBJ DELTA -290027.0799