Exposure
- ID
- GRAVI.2023-08-03T00:16:24.911_2
- Header ID
- GRAVI.2023-08-03T00:16:24.911
- Date updated
- 2023-08-03 00:30:36 UTC+0000
- Release date
- 2024-08-03 00:30:35 UTC+0000
- UTC Start
- 2023-08-03 00:16:24.911
- UTC End
- 2023-08-03 00:22:24.911
- MJD Start
- 60159.01139943
- MJD End
- 60159.01556609666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008542999999999999
- Ambient temperature (°C)
- 18.93
- Seeing (arcsec)
- 0.565
Observation
- ID
- 56474
- Category
- science
- Program ID
- 111.24H1.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ GENZEL/ OTT/ STRAUBMEIER/ BRANDNER/ ROUSSELET-PERRAUT/ PERRIN/ GARCIA/ ECKART/ DE ZEEUW/ WIDMANN/ PAUMARD/ HORROBIN/ VINCENT/ DRESCHER/ BOURDAROT/ CAO/ LUTZ/ STURM/ RIBEIRO
Target
- ID
- 41849
- Name
- IRS16C
- RA
- 266.4171083333333
- DEC
- -29.007645
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 | 56.4880 | 56.5060 | 15.6000 | 16.5000 |
| U1-U3 | 102.0460 | 102.1240 | 21.6000 | 22.5000 |
| U1-U4 | 126.6810 | 127.2230 | 48.7330 | 49.7300 |
| U2-U3 | 46.2440 | 46.3140 | 28.9000 | 29.9000 |
| U2-U4 | 85.1690 | 85.7820 | 69.9870 | 70.9190 |
| U3-U4 | 58.7650 | 59.2610 | 101.1180 | 101.8060 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60159.01139943 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41687 |
| DEC | -29.00725 |
| 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 | 56.488 |
| HIERARCH ESO ISS PBL12 END | 56.506 |
| HIERARCH ESO ISS PBLA12 START | 15.6 |
| HIERARCH ESO ISS PBLA12 END | 16.5 |
| HIERARCH ESO ISS PBL13 START | 102.046 |
| HIERARCH ESO ISS PBL13 END | 102.124 |
| HIERARCH ESO ISS PBLA13 START | 21.6 |
| HIERARCH ESO ISS PBLA13 END | 22.5 |
| HIERARCH ESO ISS PBL14 START | 126.681 |
| HIERARCH ESO ISS PBL14 END | 127.223 |
| HIERARCH ESO ISS PBLA14 START | 48.733 |
| HIERARCH ESO ISS PBLA14 END | 49.73 |
| HIERARCH ESO ISS PBL23 START | 46.244 |
| HIERARCH ESO ISS PBL23 END | 46.314 |
| HIERARCH ESO ISS PBLA23 START | 28.9 |
| HIERARCH ESO ISS PBLA23 END | 29.9 |
| HIERARCH ESO ISS PBL24 START | 85.169 |
| HIERARCH ESO ISS PBL24 END | 85.782 |
| HIERARCH ESO ISS PBLA24 START | 69.987 |
| HIERARCH ESO ISS PBLA24 END | 70.919 |
| HIERARCH ESO ISS PBL34 START | 58.765 |
| HIERARCH ESO ISS PBL34 END | 59.261 |
| HIERARCH ESO ISS PBLA34 START | 101.118 |
| HIERARCH ESO ISS PBLA34 END | 101.806 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008171 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008915 |
| HIERARCH ESO ISS AMBI TEMP | 18.93 |
| HIERARCH ESO ISS AMBI FWHM START | 0.56 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |