Exposure
- ID
- GRAVI.2023-07-31T02:24:47.286_2
- Header ID
- GRAVI.2023-07-31T02:24:47.286
- Date updated
- 2023-07-31 02:40:24 UTC+0000
- Release date
- 2024-07-31 02:40:23 UTC+0000
- UTC Start
- 2023-07-31 02:24:47.286
- UTC End
- 2023-07-31 02:30:47.286
- MJD Start
- 60156.10054729
- MJD End
- 60156.104713956665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035770000000000003
- Ambient temperature (°C)
- 17.9
- Seeing (arcsec)
- 1.0550000000000002
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 | 56.1420 | 56.0540 | 29.2000 | 29.8000 |
| U1-U3 | 101.5910 | 101.3900 | 35.5000 | 36.2000 |
| U1-U4 | 128.9620 | 128.5280 | 63.8340 | 64.5290 |
| U2-U3 | 46.2200 | 46.1060 | 43.3000 | 43.9000 |
| U2-U4 | 88.7350 | 88.4330 | 84.9280 | 85.7000 |
| U3-U4 | 62.2820 | 62.1560 | 114.4650 | 115.3060 |
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 | 60156.10054729 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41672 |
| DEC | -29.00715 |
| 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 | 56.142 |
| HIERARCH ESO ISS PBL12 END | 56.054 |
| HIERARCH ESO ISS PBLA12 START | 29.2 |
| HIERARCH ESO ISS PBLA12 END | 29.8 |
| HIERARCH ESO ISS PBL13 START | 101.591 |
| HIERARCH ESO ISS PBL13 END | 101.39 |
| HIERARCH ESO ISS PBLA13 START | 35.5 |
| HIERARCH ESO ISS PBLA13 END | 36.2 |
| HIERARCH ESO ISS PBL14 START | 128.962 |
| HIERARCH ESO ISS PBL14 END | 128.528 |
| HIERARCH ESO ISS PBLA14 START | 63.834 |
| HIERARCH ESO ISS PBLA14 END | 64.529 |
| HIERARCH ESO ISS PBL23 START | 46.22 |
| HIERARCH ESO ISS PBL23 END | 46.106 |
| HIERARCH ESO ISS PBLA23 START | 43.3 |
| HIERARCH ESO ISS PBLA23 END | 43.9 |
| HIERARCH ESO ISS PBL24 START | 88.735 |
| HIERARCH ESO ISS PBL24 END | 88.433 |
| HIERARCH ESO ISS PBLA24 START | 84.928 |
| HIERARCH ESO ISS PBLA24 END | 85.7 |
| HIERARCH ESO ISS PBL34 START | 62.282 |
| HIERARCH ESO ISS PBL34 END | 62.156 |
| HIERARCH ESO ISS PBLA34 START | 114.465 |
| HIERARCH ESO ISS PBLA34 END | 115.306 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003474 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00368 |
| HIERARCH ESO ISS AMBI TEMP | 17.9 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 1.11 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |