Exposure
- ID
- GRAVI.2025-08-07T01:25:43.935_2
- Header ID
- GRAVI.2025-08-07T01:25:43.935
- Date updated
- 2025-08-07 01:40:42 UTC+0000
- Release date
- 2026-08-07 01:40:42 UTC+0000
- UTC Start
- 2025-08-07 01:25:43.935
- UTC End
- 2025-08-07 01:31:43.935
- MJD Start
- 60894.05953629
- MJD End
- 60894.063702956664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033095
- Ambient temperature (°C)
- 14.03
- Seeing (arcsec)
- 1.225
Observation
- ID
- 69325
- Category
- science
- Program ID
- 115.27WT.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 / 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
- 51518
- Name
- IRS16C
- RA
- 266.417075
- 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 | 56.4240 | 56.3780 | 26.1000 | 26.8000 |
| U1-U3 | 102.2170 | 102.1200 | 32.5000 | 33.2000 |
| U1-U4 | 130.1140 | 129.9760 | 60.5050 | 61.2530 |
| U2-U3 | 46.5600 | 46.5090 | 40.2000 | 40.9000 |
| U2-U4 | 89.4220 | 89.3690 | 81.3830 | 82.1640 |
| U3-U4 | 62.4490 | 62.4710 | 110.8030 | 111.5810 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60894.05953629 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417207 |
| DEC | -29.00722 |
| 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 | 56.424 |
| HIERARCH ESO ISS PBL12 END | 56.378 |
| HIERARCH ESO ISS PBLA12 START | 26.1 |
| HIERARCH ESO ISS PBLA12 END | 26.8 |
| HIERARCH ESO ISS PBL13 START | 102.217 |
| HIERARCH ESO ISS PBL13 END | 102.12 |
| HIERARCH ESO ISS PBLA13 START | 32.5 |
| HIERARCH ESO ISS PBLA13 END | 33.2 |
| HIERARCH ESO ISS PBL14 START | 130.114 |
| HIERARCH ESO ISS PBL14 END | 129.976 |
| HIERARCH ESO ISS PBLA14 START | 60.505 |
| HIERARCH ESO ISS PBLA14 END | 61.253 |
| HIERARCH ESO ISS PBL23 START | 46.56 |
| HIERARCH ESO ISS PBL23 END | 46.509 |
| HIERARCH ESO ISS PBLA23 START | 40.2 |
| HIERARCH ESO ISS PBLA23 END | 40.9 |
| HIERARCH ESO ISS PBL24 START | 89.422 |
| HIERARCH ESO ISS PBL24 END | 89.369 |
| HIERARCH ESO ISS PBLA24 START | 81.383 |
| HIERARCH ESO ISS PBLA24 END | 82.164 |
| HIERARCH ESO ISS PBL34 START | 62.449 |
| HIERARCH ESO ISS PBL34 END | 62.471 |
| HIERARCH ESO ISS PBLA34 START | 110.803 |
| HIERARCH ESO ISS PBLA34 END | 111.581 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002992 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003627 |
| HIERARCH ESO ISS AMBI TEMP | 14.03 |
| HIERARCH ESO ISS AMBI FWHM START | 1.38 |
| HIERARCH ESO ISS AMBI FWHM END | 1.07 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |