Exposure
- ID
- GRAVI.2023-08-03T03:54:25.463_2
- Header ID
- GRAVI.2023-08-03T03:54:25.463
- Date updated
- 2023-08-03 04:10:24 UTC+0000
- Release date
- 2024-08-03 04:10:24 UTC+0000
- UTC Start
- 2023-08-03 03:54:25.463
- UTC End
- 2023-08-03 04:00:25.463
- MJD Start
- 60159.16279471
- MJD End
- 60159.166961376664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005327
- Ambient temperature (°C)
- 18.89
- Seeing (arcsec)
- 0.675
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 | 53.4010 | 53.1130 | 37.3000 | 37.7000 |
| U1-U3 | 95.2430 | 94.5810 | 43.6000 | 43.9000 |
| U1-U4 | 114.2680 | 112.7440 | 73.6230 | 74.1920 |
| U2-U3 | 42.5650 | 42.1850 | 51.4000 | 51.8000 |
| U2-U4 | 77.9720 | 76.8710 | 97.5710 | 98.4770 |
| U3-U4 | 57.3700 | 56.8930 | 129.9040 | 131.1030 |
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 | 60159.16279471 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417034 |
| DEC | -29.00737 |
| 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 | 53.401 |
| HIERARCH ESO ISS PBL12 END | 53.113 |
| HIERARCH ESO ISS PBLA12 START | 37.3 |
| HIERARCH ESO ISS PBLA12 END | 37.7 |
| HIERARCH ESO ISS PBL13 START | 95.243 |
| HIERARCH ESO ISS PBL13 END | 94.581 |
| HIERARCH ESO ISS PBLA13 START | 43.6 |
| HIERARCH ESO ISS PBLA13 END | 43.9 |
| HIERARCH ESO ISS PBL14 START | 114.268 |
| HIERARCH ESO ISS PBL14 END | 112.744 |
| HIERARCH ESO ISS PBLA14 START | 73.623 |
| HIERARCH ESO ISS PBLA14 END | 74.192 |
| HIERARCH ESO ISS PBL23 START | 42.565 |
| HIERARCH ESO ISS PBL23 END | 42.185 |
| HIERARCH ESO ISS PBLA23 START | 51.4 |
| HIERARCH ESO ISS PBLA23 END | 51.8 |
| HIERARCH ESO ISS PBL24 START | 77.972 |
| HIERARCH ESO ISS PBL24 END | 76.871 |
| HIERARCH ESO ISS PBLA24 START | 97.571 |
| HIERARCH ESO ISS PBLA24 END | 98.477 |
| HIERARCH ESO ISS PBL34 START | 57.37 |
| HIERARCH ESO ISS PBL34 END | 56.893 |
| HIERARCH ESO ISS PBLA34 START | 129.904 |
| HIERARCH ESO ISS PBLA34 END | 131.103 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004881 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005773 |
| HIERARCH ESO ISS AMBI TEMP | 18.89 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |