Exposure
- ID
- GRAVI.2023-07-31T03:56:11.518_2
- Header ID
- GRAVI.2023-07-31T03:56:11.518
- Date updated
- 2023-07-31 04:10:29 UTC+0000
- Release date
- 2024-07-31 04:10:29 UTC+0000
- UTC Start
- 2023-07-31 03:56:11.518
- UTC End
- 2023-07-31 04:02:11.518
- MJD Start
- 60156.1640222
- MJD End
- 60156.168188866664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0039325
- Ambient temperature (°C)
- 18.32
- Seeing (arcsec)
- 0.855
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 | 53.8160 | 53.5510 | 36.6000 | 37.1000 |
| U1-U3 | 96.2000 | 95.5880 | 42.9000 | 43.3000 |
| U1-U4 | 116.4820 | 115.0650 | 72.7380 | 73.3140 |
| U2-U3 | 43.1150 | 42.7640 | 50.8000 | 51.2000 |
| U2-U4 | 79.5830 | 78.5510 | 96.2130 | 97.0900 |
| U3-U4 | 58.0810 | 57.6240 | 128.1150 | 129.2680 |
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 | 60156.1640222 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417098 |
| 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 | 53.816 |
| HIERARCH ESO ISS PBL12 END | 53.551 |
| HIERARCH ESO ISS PBLA12 START | 36.6 |
| HIERARCH ESO ISS PBLA12 END | 37.1 |
| HIERARCH ESO ISS PBL13 START | 96.2 |
| HIERARCH ESO ISS PBL13 END | 95.588 |
| HIERARCH ESO ISS PBLA13 START | 42.9 |
| HIERARCH ESO ISS PBLA13 END | 43.3 |
| HIERARCH ESO ISS PBL14 START | 116.482 |
| HIERARCH ESO ISS PBL14 END | 115.065 |
| HIERARCH ESO ISS PBLA14 START | 72.738 |
| HIERARCH ESO ISS PBLA14 END | 73.314 |
| HIERARCH ESO ISS PBL23 START | 43.115 |
| HIERARCH ESO ISS PBL23 END | 42.764 |
| HIERARCH ESO ISS PBLA23 START | 50.8 |
| HIERARCH ESO ISS PBLA23 END | 51.2 |
| HIERARCH ESO ISS PBL24 START | 79.583 |
| HIERARCH ESO ISS PBL24 END | 78.551 |
| HIERARCH ESO ISS PBLA24 START | 96.213 |
| HIERARCH ESO ISS PBLA24 END | 97.09 |
| HIERARCH ESO ISS PBL34 START | 58.081 |
| HIERARCH ESO ISS PBL34 END | 57.624 |
| HIERARCH ESO ISS PBLA34 START | 128.115 |
| HIERARCH ESO ISS PBLA34 END | 129.268 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003615 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00425 |
| HIERARCH ESO ISS AMBI TEMP | 18.32 |
| HIERARCH ESO ISS AMBI FWHM START | 0.95 |
| HIERARCH ESO ISS AMBI FWHM END | 0.76 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |