Exposure
- ID
- GRAVI.2025-07-08T05:38:26.861_2
- Header ID
- GRAVI.2025-07-08T05:38:26.861
- Date updated
- 2025-07-08 05:55:44 UTC+0000
- Release date
- 2026-07-08 05:55:44 UTC+0000
- UTC Start
- 2025-07-08 05:38:26.861
- UTC End
- 2025-07-08 05:44:26.861
- MJD Start
- 60864.23503311
- MJD End
- 60864.23919977667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007357
- Ambient temperature (°C)
- 15.57
- Seeing (arcsec)
- 0.4
Observation
- ID
- 68254
- Category
- science
- Program ID
- 115.27WT.003
- 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
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.00768111111111
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 | 53.2390 | 52.9440 | 37.5000 | 37.9000 |
| U1-U3 | 94.8700 | 94.1930 | 43.8000 | 44.1000 |
| U1-U4 | 113.4100 | 111.8560 | 73.9480 | 74.5110 |
| U2-U3 | 42.3510 | 41.9630 | 51.7000 | 52.0000 |
| U2-U4 | 77.3530 | 76.2320 | 98.0850 | 98.9970 |
| U3-U4 | 57.1010 | 56.6190 | 130.5820 | 131.7930 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60864.23503311 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416492 |
| DEC | -29.00742 |
| 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 | 53.239 |
| HIERARCH ESO ISS PBL12 END | 52.944 |
| HIERARCH ESO ISS PBLA12 START | 37.5 |
| HIERARCH ESO ISS PBLA12 END | 37.9 |
| HIERARCH ESO ISS PBL13 START | 94.87 |
| HIERARCH ESO ISS PBL13 END | 94.193 |
| HIERARCH ESO ISS PBLA13 START | 43.8 |
| HIERARCH ESO ISS PBLA13 END | 44.1 |
| HIERARCH ESO ISS PBL14 START | 113.41 |
| HIERARCH ESO ISS PBL14 END | 111.856 |
| HIERARCH ESO ISS PBLA14 START | 73.948 |
| HIERARCH ESO ISS PBLA14 END | 74.511 |
| HIERARCH ESO ISS PBL23 START | 42.351 |
| HIERARCH ESO ISS PBL23 END | 41.963 |
| HIERARCH ESO ISS PBLA23 START | 51.7 |
| HIERARCH ESO ISS PBLA23 END | 52.0 |
| HIERARCH ESO ISS PBL24 START | 77.353 |
| HIERARCH ESO ISS PBL24 END | 76.232 |
| HIERARCH ESO ISS PBLA24 START | 98.085 |
| HIERARCH ESO ISS PBLA24 END | 98.997 |
| HIERARCH ESO ISS PBL34 START | 57.101 |
| HIERARCH ESO ISS PBL34 END | 56.619 |
| HIERARCH ESO ISS PBLA34 START | 130.582 |
| HIERARCH ESO ISS PBLA34 END | 131.793 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008206 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006508 |
| HIERARCH ESO ISS AMBI TEMP | 15.57 |
| HIERARCH ESO ISS AMBI FWHM START | 0.37 |
| HIERARCH ESO ISS AMBI FWHM END | 0.43 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |