Exposure
- ID
- GRAVI.2023-08-31T00:18:59.387_2
- Header ID
- GRAVI.2023-08-31T00:18:59.387
- Date updated
- 2023-08-31 00:35:23 UTC+0000
- Release date
- 2024-08-31 00:35:23 UTC+0000
- UTC Start
- 2023-08-31 00:18:59.387
- UTC End
- 2023-08-31 00:24:59.387
- MJD Start
- 60187.01318735
- MJD End
- 60187.017354016665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035979999999999996
- Ambient temperature (°C)
- 13.86
- Seeing (arcsec)
- 0.875
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 | 56.1900 | 56.1080 | 28.8000 | 29.4000 |
| U1-U3 | 101.7010 | 101.5150 | 35.2000 | 35.8000 |
| U1-U4 | 129.1920 | 128.8000 | 63.4080 | 64.1080 |
| U2-U3 | 46.2820 | 46.1770 | 42.9000 | 43.6000 |
| U2-U4 | 88.8910 | 88.6230 | 84.4610 | 85.2300 |
| U3-U4 | 62.3420 | 62.2360 | 113.9630 | 114.7920 |
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 | 60187.01318735 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41685 |
| 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 | 56.19 |
| HIERARCH ESO ISS PBL12 END | 56.108 |
| HIERARCH ESO ISS PBLA12 START | 28.8 |
| HIERARCH ESO ISS PBLA12 END | 29.4 |
| HIERARCH ESO ISS PBL13 START | 101.701 |
| HIERARCH ESO ISS PBL13 END | 101.515 |
| HIERARCH ESO ISS PBLA13 START | 35.2 |
| HIERARCH ESO ISS PBLA13 END | 35.8 |
| HIERARCH ESO ISS PBL14 START | 129.192 |
| HIERARCH ESO ISS PBL14 END | 128.8 |
| HIERARCH ESO ISS PBLA14 START | 63.408 |
| HIERARCH ESO ISS PBLA14 END | 64.108 |
| HIERARCH ESO ISS PBL23 START | 46.282 |
| HIERARCH ESO ISS PBL23 END | 46.177 |
| HIERARCH ESO ISS PBLA23 START | 42.9 |
| HIERARCH ESO ISS PBLA23 END | 43.6 |
| HIERARCH ESO ISS PBL24 START | 88.891 |
| HIERARCH ESO ISS PBL24 END | 88.623 |
| HIERARCH ESO ISS PBLA24 START | 84.461 |
| HIERARCH ESO ISS PBLA24 END | 85.23 |
| HIERARCH ESO ISS PBL34 START | 62.342 |
| HIERARCH ESO ISS PBL34 END | 62.236 |
| HIERARCH ESO ISS PBLA34 START | 113.963 |
| HIERARCH ESO ISS PBLA34 END | 114.792 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003763 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003433 |
| HIERARCH ESO ISS AMBI TEMP | 13.86 |
| HIERARCH ESO ISS AMBI FWHM START | 0.84 |
| HIERARCH ESO ISS AMBI FWHM END | 0.91 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |