Exposure
- ID
- GRAVI.2023-08-03T02:28:04.244_2
- Header ID
- GRAVI.2023-08-03T02:28:04.244
- Date updated
- 2023-08-03 02:45:27 UTC+0000
- Release date
- 2024-08-03 02:45:27 UTC+0000
- UTC Start
- 2023-08-03 02:28:04.244
- UTC End
- 2023-08-03 02:34:04.244
- MJD Start
- 60159.1028269
- MJD End
- 60159.10699356667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004276
- Ambient temperature (°C)
- 18.65
- Seeing (arcsec)
- 0.69
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 | 55.9220 | 55.8100 | 30.6000 | 31.2000 |
| U1-U3 | 101.0860 | 100.8260 | 37.0000 | 37.6000 |
| U1-U4 | 127.8520 | 127.2640 | 65.4230 | 66.0910 |
| U2-U3 | 45.9330 | 45.7840 | 44.8000 | 45.4000 |
| U2-U4 | 87.9510 | 87.5240 | 86.7140 | 87.4870 |
| U3-U4 | 61.9440 | 61.7510 | 116.4350 | 117.3130 |
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 | 60159.1028269 |
| 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 | 55.922 |
| HIERARCH ESO ISS PBL12 END | 55.81 |
| HIERARCH ESO ISS PBLA12 START | 30.6 |
| HIERARCH ESO ISS PBLA12 END | 31.2 |
| HIERARCH ESO ISS PBL13 START | 101.086 |
| HIERARCH ESO ISS PBL13 END | 100.826 |
| HIERARCH ESO ISS PBLA13 START | 37.0 |
| HIERARCH ESO ISS PBLA13 END | 37.6 |
| HIERARCH ESO ISS PBL14 START | 127.852 |
| HIERARCH ESO ISS PBL14 END | 127.264 |
| HIERARCH ESO ISS PBLA14 START | 65.423 |
| HIERARCH ESO ISS PBLA14 END | 66.091 |
| HIERARCH ESO ISS PBL23 START | 45.933 |
| HIERARCH ESO ISS PBL23 END | 45.784 |
| HIERARCH ESO ISS PBLA23 START | 44.8 |
| HIERARCH ESO ISS PBLA23 END | 45.4 |
| HIERARCH ESO ISS PBL24 START | 87.951 |
| HIERARCH ESO ISS PBL24 END | 87.524 |
| HIERARCH ESO ISS PBLA24 START | 86.714 |
| HIERARCH ESO ISS PBLA24 END | 87.487 |
| HIERARCH ESO ISS PBL34 START | 61.944 |
| HIERARCH ESO ISS PBL34 END | 61.751 |
| HIERARCH ESO ISS PBLA34 START | 116.435 |
| HIERARCH ESO ISS PBLA34 END | 117.313 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004276 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004276 |
| HIERARCH ESO ISS AMBI TEMP | 18.65 |
| HIERARCH ESO ISS AMBI FWHM START | 0.69 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |