Exposure
- ID
- GRAVI.2023-08-03T03:06:58.343_2
- Header ID
- GRAVI.2023-08-03T03:06:58.343
- Date updated
- 2023-08-03 03:20:59 UTC+0000
- Release date
- 2024-08-03 03:20:59 UTC+0000
- UTC Start
- 2023-08-03 03:06:58.343
- UTC End
- 2023-08-03 03:12:58.343
- MJD Start
- 60159.12984193
- MJD End
- 60159.134008596666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005588
- Ambient temperature (°C)
- 18.84
- Seeing (arcsec)
- 0.5700000000000001
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 | 55.0720 | 54.8860 | 33.9000 | 34.5000 |
| U1-U3 | 99.1100 | 98.6790 | 40.3000 | 40.8000 |
| U1-U4 | 123.2720 | 122.2610 | 69.2920 | 69.9070 |
| U2-U3 | 44.7940 | 44.5450 | 48.1000 | 48.6000 |
| U2-U4 | 84.5800 | 83.8320 | 91.4180 | 92.2250 |
| U3-U4 | 60.3740 | 60.0240 | 121.9980 | 123.0000 |
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 | 60159.12984193 |
| 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 | 55.072 |
| HIERARCH ESO ISS PBL12 END | 54.886 |
| HIERARCH ESO ISS PBLA12 START | 33.9 |
| HIERARCH ESO ISS PBLA12 END | 34.5 |
| HIERARCH ESO ISS PBL13 START | 99.11 |
| HIERARCH ESO ISS PBL13 END | 98.679 |
| HIERARCH ESO ISS PBLA13 START | 40.3 |
| HIERARCH ESO ISS PBLA13 END | 40.8 |
| HIERARCH ESO ISS PBL14 START | 123.272 |
| HIERARCH ESO ISS PBL14 END | 122.261 |
| HIERARCH ESO ISS PBLA14 START | 69.292 |
| HIERARCH ESO ISS PBLA14 END | 69.907 |
| HIERARCH ESO ISS PBL23 START | 44.794 |
| HIERARCH ESO ISS PBL23 END | 44.545 |
| HIERARCH ESO ISS PBLA23 START | 48.1 |
| HIERARCH ESO ISS PBLA23 END | 48.6 |
| HIERARCH ESO ISS PBL24 START | 84.58 |
| HIERARCH ESO ISS PBL24 END | 83.832 |
| HIERARCH ESO ISS PBLA24 START | 91.418 |
| HIERARCH ESO ISS PBLA24 END | 92.225 |
| HIERARCH ESO ISS PBL34 START | 60.374 |
| HIERARCH ESO ISS PBL34 END | 60.024 |
| HIERARCH ESO ISS PBLA34 START | 121.998 |
| HIERARCH ESO ISS PBLA34 END | 123.0 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005544 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005632 |
| HIERARCH ESO ISS AMBI TEMP | 18.84 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |