Exposure
- ID
- GRAVI.2023-08-29T01:01:31.865_2
- Header ID
- GRAVI.2023-08-29T01:01:31.865
- Date updated
- 2023-08-29 01:15:24 UTC+0000
- Release date
- 2024-08-29 01:15:24 UTC+0000
- UTC Start
- 2023-08-29 01:01:31.865
- UTC End
- 2023-08-29 01:07:31.865
- MJD Start
- 60185.04272992
- MJD End
- 60185.04689658667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0029605
- Ambient temperature (°C)
- 13.68
- Seeing (arcsec)
- 0.9
Observation
- ID
- 56795
- Category
- science
- Program ID
- 111.24H1.005
- 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 | 55.6300 | 55.4900 | 32.0000 | 32.6000 |
| U1-U3 | 100.4100 | 100.0830 | 38.4000 | 38.9000 |
| U1-U4 | 126.3070 | 125.5480 | 67.0250 | 67.6710 |
| U2-U3 | 45.5450 | 45.3560 | 46.2000 | 46.7000 |
| U2-U4 | 86.8230 | 86.2630 | 88.5920 | 89.3760 |
| U3-U4 | 61.4260 | 61.1650 | 118.5940 | 119.5210 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.005 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60185.04272992 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417574 |
| DEC | -29.00709 |
| 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 | 55.63 |
| HIERARCH ESO ISS PBL12 END | 55.49 |
| HIERARCH ESO ISS PBLA12 START | 32.0 |
| HIERARCH ESO ISS PBLA12 END | 32.6 |
| HIERARCH ESO ISS PBL13 START | 100.41 |
| HIERARCH ESO ISS PBL13 END | 100.083 |
| HIERARCH ESO ISS PBLA13 START | 38.4 |
| HIERARCH ESO ISS PBLA13 END | 38.9 |
| HIERARCH ESO ISS PBL14 START | 126.307 |
| HIERARCH ESO ISS PBL14 END | 125.548 |
| HIERARCH ESO ISS PBLA14 START | 67.025 |
| HIERARCH ESO ISS PBLA14 END | 67.671 |
| HIERARCH ESO ISS PBL23 START | 45.545 |
| HIERARCH ESO ISS PBL23 END | 45.356 |
| HIERARCH ESO ISS PBLA23 START | 46.2 |
| HIERARCH ESO ISS PBLA23 END | 46.7 |
| HIERARCH ESO ISS PBL24 START | 86.823 |
| HIERARCH ESO ISS PBL24 END | 86.263 |
| HIERARCH ESO ISS PBLA24 START | 88.592 |
| HIERARCH ESO ISS PBLA24 END | 89.376 |
| HIERARCH ESO ISS PBL34 START | 61.426 |
| HIERARCH ESO ISS PBL34 END | 61.165 |
| HIERARCH ESO ISS PBLA34 START | 118.594 |
| HIERARCH ESO ISS PBLA34 END | 119.521 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002839 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003082 |
| HIERARCH ESO ISS AMBI TEMP | 13.68 |
| HIERARCH ESO ISS AMBI FWHM START | 0.93 |
| HIERARCH ESO ISS AMBI FWHM END | 0.87 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |