Exposure
- ID
- GRAVI.2025-08-07T02:40:35.126_2
- Header ID
- GRAVI.2025-08-07T02:40:35.126
- Date updated
- 2025-08-07 02:55:49 UTC+0000
- Release date
- 2026-08-07 02:55:49 UTC+0000
- UTC Start
- 2025-08-07 02:40:35.126
- UTC End
- 2025-08-07 02:46:35.126
- MJD Start
- 60894.11151766
- MJD End
- 60894.115684326665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0034454999999999998
- Ambient temperature (°C)
- 13.31
- Seeing (arcsec)
- 1.115
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 | 55.3010 | 55.1340 | 33.2000 | 33.8000 |
| U1-U3 | 99.6430 | 99.2540 | 39.6000 | 40.1000 |
| U1-U4 | 124.5210 | 123.6110 | 68.4540 | 69.0770 |
| U2-U3 | 45.1020 | 44.8770 | 47.4000 | 47.9000 |
| U2-U4 | 85.5050 | 84.8310 | 90.3470 | 91.1390 |
| U3-U4 | 60.8080 | 60.4920 | 120.6870 | 121.6530 |
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 | 60894.11151766 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41715 |
| DEC | -29.00714 |
| 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 | 55.301 |
| HIERARCH ESO ISS PBL12 END | 55.134 |
| HIERARCH ESO ISS PBLA12 START | 33.2 |
| HIERARCH ESO ISS PBLA12 END | 33.8 |
| HIERARCH ESO ISS PBL13 START | 99.643 |
| HIERARCH ESO ISS PBL13 END | 99.254 |
| HIERARCH ESO ISS PBLA13 START | 39.6 |
| HIERARCH ESO ISS PBLA13 END | 40.1 |
| HIERARCH ESO ISS PBL14 START | 124.521 |
| HIERARCH ESO ISS PBL14 END | 123.611 |
| HIERARCH ESO ISS PBLA14 START | 68.454 |
| HIERARCH ESO ISS PBLA14 END | 69.077 |
| HIERARCH ESO ISS PBL23 START | 45.102 |
| HIERARCH ESO ISS PBL23 END | 44.877 |
| HIERARCH ESO ISS PBLA23 START | 47.4 |
| HIERARCH ESO ISS PBLA23 END | 47.9 |
| HIERARCH ESO ISS PBL24 START | 85.505 |
| HIERARCH ESO ISS PBL24 END | 84.831 |
| HIERARCH ESO ISS PBLA24 START | 90.347 |
| HIERARCH ESO ISS PBLA24 END | 91.139 |
| HIERARCH ESO ISS PBL34 START | 60.808 |
| HIERARCH ESO ISS PBL34 END | 60.492 |
| HIERARCH ESO ISS PBLA34 START | 120.687 |
| HIERARCH ESO ISS PBLA34 END | 121.653 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003463 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003428 |
| HIERARCH ESO ISS AMBI TEMP | 13.31 |
| HIERARCH ESO ISS AMBI FWHM START | 1.02 |
| HIERARCH ESO ISS AMBI FWHM END | 1.21 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |