Exposure
- ID
- GRAVI.2023-07-31T02:58:02.371_2
- Header ID
- GRAVI.2023-07-31T02:58:02.371
- Date updated
- 2023-07-31 03:15:23 UTC+0000
- Release date
- 2024-07-31 03:15:23 UTC+0000
- UTC Start
- 2023-07-31 02:58:02.371
- UTC End
- 2023-07-31 03:04:02.371
- MJD Start
- 60156.12363855
- MJD End
- 60156.12780521667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0044905
- Ambient temperature (°C)
- 17.97
- Seeing (arcsec)
- 0.915
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 | 55.5790 | 55.4340 | 32.2000 | 32.8000 |
| U1-U3 | 100.2890 | 99.9520 | 38.6000 | 39.2000 |
| U1-U4 | 126.0270 | 125.2420 | 67.2750 | 67.9160 |
| U2-U3 | 45.4750 | 45.2800 | 46.4000 | 47.0000 |
| U2-U4 | 86.6170 | 86.0380 | 88.8930 | 89.6770 |
| U3-U4 | 61.3300 | 61.0590 | 118.9470 | 119.8790 |
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 | 60156.12363855 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41672 |
| DEC | -29.00715 |
| 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 | 55.579 |
| HIERARCH ESO ISS PBL12 END | 55.434 |
| HIERARCH ESO ISS PBLA12 START | 32.2 |
| HIERARCH ESO ISS PBLA12 END | 32.8 |
| HIERARCH ESO ISS PBL13 START | 100.289 |
| HIERARCH ESO ISS PBL13 END | 99.952 |
| HIERARCH ESO ISS PBLA13 START | 38.6 |
| HIERARCH ESO ISS PBLA13 END | 39.2 |
| HIERARCH ESO ISS PBL14 START | 126.027 |
| HIERARCH ESO ISS PBL14 END | 125.242 |
| HIERARCH ESO ISS PBLA14 START | 67.275 |
| HIERARCH ESO ISS PBLA14 END | 67.916 |
| HIERARCH ESO ISS PBL23 START | 45.475 |
| HIERARCH ESO ISS PBL23 END | 45.28 |
| HIERARCH ESO ISS PBLA23 START | 46.4 |
| HIERARCH ESO ISS PBLA23 END | 47.0 |
| HIERARCH ESO ISS PBL24 START | 86.617 |
| HIERARCH ESO ISS PBL24 END | 86.038 |
| HIERARCH ESO ISS PBLA24 START | 88.893 |
| HIERARCH ESO ISS PBLA24 END | 89.677 |
| HIERARCH ESO ISS PBL34 START | 61.33 |
| HIERARCH ESO ISS PBL34 END | 61.059 |
| HIERARCH ESO ISS PBLA34 START | 118.947 |
| HIERARCH ESO ISS PBLA34 END | 119.879 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004391 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00459 |
| HIERARCH ESO ISS AMBI TEMP | 17.97 |
| HIERARCH ESO ISS AMBI FWHM START | 0.97 |
| HIERARCH ESO ISS AMBI FWHM END | 0.86 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |