Exposure
- ID
- GRAVI.2023-08-30T01:04:44.068_2
- Header ID
- GRAVI.2023-08-30T01:04:44.068
- Date updated
- 2023-08-30 01:20:21 UTC+0000
- Release date
- 2024-08-30 01:20:21 UTC+0000
- UTC Start
- 2023-08-30 01:04:44.068
- UTC End
- 2023-08-30 01:10:44.068
- MJD Start
- 60186.04495449
- MJD End
- 60186.04912115666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002848
- Ambient temperature (°C)
- 13.18
- Seeing (arcsec)
- 0.825
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 | 55.4750 | 55.3210 | 32.6000 | 33.2000 |
| U1-U3 | 100.0480 | 99.6900 | 39.0000 | 39.5000 |
| U1-U4 | 125.4650 | 124.6290 | 67.7390 | 68.3750 |
| U2-U3 | 45.3360 | 45.1290 | 46.8000 | 47.4000 |
| U2-U4 | 86.2030 | 85.5840 | 89.4590 | 90.2490 |
| U3-U4 | 61.1360 | 60.8460 | 119.6190 | 120.5670 |
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 | 60186.04495449 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417167 |
| DEC | -29.00723 |
| 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 | 55.475 |
| HIERARCH ESO ISS PBL12 END | 55.321 |
| HIERARCH ESO ISS PBLA12 START | 32.6 |
| HIERARCH ESO ISS PBLA12 END | 33.2 |
| HIERARCH ESO ISS PBL13 START | 100.048 |
| HIERARCH ESO ISS PBL13 END | 99.69 |
| HIERARCH ESO ISS PBLA13 START | 39.0 |
| HIERARCH ESO ISS PBLA13 END | 39.5 |
| HIERARCH ESO ISS PBL14 START | 125.465 |
| HIERARCH ESO ISS PBL14 END | 124.629 |
| HIERARCH ESO ISS PBLA14 START | 67.739 |
| HIERARCH ESO ISS PBLA14 END | 68.375 |
| HIERARCH ESO ISS PBL23 START | 45.336 |
| HIERARCH ESO ISS PBL23 END | 45.129 |
| HIERARCH ESO ISS PBLA23 START | 46.8 |
| HIERARCH ESO ISS PBLA23 END | 47.4 |
| HIERARCH ESO ISS PBL24 START | 86.203 |
| HIERARCH ESO ISS PBL24 END | 85.584 |
| HIERARCH ESO ISS PBLA24 START | 89.459 |
| HIERARCH ESO ISS PBLA24 END | 90.249 |
| HIERARCH ESO ISS PBL34 START | 61.136 |
| HIERARCH ESO ISS PBL34 END | 60.846 |
| HIERARCH ESO ISS PBLA34 START | 119.619 |
| HIERARCH ESO ISS PBLA34 END | 120.567 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003381 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002315 |
| HIERARCH ESO ISS AMBI TEMP | 13.18 |
| HIERARCH ESO ISS AMBI FWHM START | 0.59 |
| HIERARCH ESO ISS AMBI FWHM END | 1.06 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |