Exposure
- ID
- GRAVI.2025-05-13T07:01:13.811_2
- Header ID
- GRAVI.2025-05-13T07:01:13.811
- Date updated
- 2025-05-13 07:15:53 UTC+0000
- Release date
- 2026-05-13 07:15:53 UTC+0000
- UTC Start
- 2025-05-13 07:01:13.811
- UTC End
- 2025-05-13 07:07:13.811
- MJD Start
- 60808.29252096
- MJD End
- 60808.296687626666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.013256
- Ambient temperature (°C)
- 16.57
- Seeing (arcsec)
- 0.28
Observation
- ID
- 67241
- Category
- science
- Program ID
- 115.27WT.001
- 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 / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
- ID
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 56.4410 | 56.3980 | 25.8000 | 26.5000 |
| U1-U3 | 102.2520 | 102.1620 | 32.2000 | 32.9000 |
| U1-U4 | 130.1530 | 130.0400 | 60.1720 | 60.9270 |
| U2-U3 | 46.5770 | 46.5320 | 39.9000 | 40.6000 |
| U2-U4 | 89.4290 | 89.3970 | 81.0410 | 81.8210 |
| U3-U4 | 62.4310 | 62.4660 | 110.4660 | 111.2370 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60808.29252096 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416234 |
| DEC | -29.00738 |
| 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 | 56.441 |
| HIERARCH ESO ISS PBL12 END | 56.398 |
| HIERARCH ESO ISS PBLA12 START | 25.8 |
| HIERARCH ESO ISS PBLA12 END | 26.5 |
| HIERARCH ESO ISS PBL13 START | 102.252 |
| HIERARCH ESO ISS PBL13 END | 102.162 |
| HIERARCH ESO ISS PBLA13 START | 32.2 |
| HIERARCH ESO ISS PBLA13 END | 32.9 |
| HIERARCH ESO ISS PBL14 START | 130.153 |
| HIERARCH ESO ISS PBL14 END | 130.04 |
| HIERARCH ESO ISS PBLA14 START | 60.172 |
| HIERARCH ESO ISS PBLA14 END | 60.927 |
| HIERARCH ESO ISS PBL23 START | 46.577 |
| HIERARCH ESO ISS PBL23 END | 46.532 |
| HIERARCH ESO ISS PBLA23 START | 39.9 |
| HIERARCH ESO ISS PBLA23 END | 40.6 |
| HIERARCH ESO ISS PBL24 START | 89.429 |
| HIERARCH ESO ISS PBL24 END | 89.397 |
| HIERARCH ESO ISS PBLA24 START | 81.041 |
| HIERARCH ESO ISS PBLA24 END | 81.821 |
| HIERARCH ESO ISS PBL34 START | 62.431 |
| HIERARCH ESO ISS PBL34 END | 62.466 |
| HIERARCH ESO ISS PBLA34 START | 110.466 |
| HIERARCH ESO ISS PBLA34 END | 111.237 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.014566 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.011946 |
| HIERARCH ESO ISS AMBI TEMP | 16.57 |
| HIERARCH ESO ISS AMBI FWHM START | 0.26 |
| HIERARCH ESO ISS AMBI FWHM END | 0.3 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |