Exposure
- ID
- GRAVI.2025-07-07T04:44:01.193_2
- Header ID
- GRAVI.2025-07-07T04:44:01.193
- Date updated
- 2025-07-07 05:00:35 UTC+0000
- Release date
- 2026-07-07 05:00:35 UTC+0000
- UTC Start
- 2025-07-07 04:44:01.193
- UTC End
- 2025-07-07 04:50:01.193
- MJD Start
- 60863.19723603
- MJD End
- 60863.201402696664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007190499999999999
- Ambient temperature (°C)
- 14.09
- Seeing (arcsec)
- 0.43
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 | 55.2610 | 55.0920 | 33.4000 | 33.9000 |
| U1-U3 | 99.5510 | 99.1560 | 39.7000 | 40.2000 |
| U1-U4 | 124.3040 | 123.3810 | 68.6080 | 69.2250 |
| U2-U3 | 45.0480 | 44.8210 | 47.6000 | 48.1000 |
| U2-U4 | 85.3440 | 84.6610 | 90.5410 | 91.3310 |
| U3-U4 | 60.7330 | 60.4120 | 120.9220 | 121.8900 |
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 | 60863.19723603 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416513 |
| DEC | -29.00751 |
| 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 | 55.261 |
| HIERARCH ESO ISS PBL12 END | 55.092 |
| HIERARCH ESO ISS PBLA12 START | 33.4 |
| HIERARCH ESO ISS PBLA12 END | 33.9 |
| HIERARCH ESO ISS PBL13 START | 99.551 |
| HIERARCH ESO ISS PBL13 END | 99.156 |
| HIERARCH ESO ISS PBLA13 START | 39.7 |
| HIERARCH ESO ISS PBLA13 END | 40.2 |
| HIERARCH ESO ISS PBL14 START | 124.304 |
| HIERARCH ESO ISS PBL14 END | 123.381 |
| HIERARCH ESO ISS PBLA14 START | 68.608 |
| HIERARCH ESO ISS PBLA14 END | 69.225 |
| HIERARCH ESO ISS PBL23 START | 45.048 |
| HIERARCH ESO ISS PBL23 END | 44.821 |
| HIERARCH ESO ISS PBLA23 START | 47.6 |
| HIERARCH ESO ISS PBLA23 END | 48.1 |
| HIERARCH ESO ISS PBL24 START | 85.344 |
| HIERARCH ESO ISS PBL24 END | 84.661 |
| HIERARCH ESO ISS PBLA24 START | 90.541 |
| HIERARCH ESO ISS PBLA24 END | 91.331 |
| HIERARCH ESO ISS PBL34 START | 60.733 |
| HIERARCH ESO ISS PBL34 END | 60.412 |
| HIERARCH ESO ISS PBLA34 START | 120.922 |
| HIERARCH ESO ISS PBLA34 END | 121.89 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005192 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009189 |
| HIERARCH ESO ISS AMBI TEMP | 14.09 |
| HIERARCH ESO ISS AMBI FWHM START | 0.45 |
| HIERARCH ESO ISS AMBI FWHM END | 0.41 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |