Exposure
- ID
- GRAVI.2025-08-10T03:31:24.297_2
- Header ID
- GRAVI.2025-08-10T03:31:24.297
- Date updated
- 2025-08-10 03:45:43 UTC+0000
- Release date
- 2026-08-10 03:45:43 UTC+0000
- UTC Start
- 2025-08-10 03:31:24.297
- UTC End
- 2025-08-10 03:37:24.297
- MJD Start
- 60897.14680899
- MJD End
- 60897.15097565667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002534
- Ambient temperature (°C)
- 12.29
- Seeing (arcsec)
- 0.96
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 | 53.1180 | 52.8170 | 37.7000 | 38.0000 |
| U1-U3 | 94.5910 | 93.9010 | 43.9000 | 44.3000 |
| U1-U4 | 112.7690 | 111.1860 | 74.1840 | 74.7450 |
| U2-U3 | 42.1920 | 41.7960 | 51.8000 | 52.2000 |
| U2-U4 | 76.8890 | 75.7510 | 98.4630 | 99.3840 |
| U3-U4 | 56.9010 | 56.4150 | 131.0850 | 132.3080 |
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 | 60897.14680899 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417361 |
| DEC | -29.00675 |
| 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 | 53.118 |
| HIERARCH ESO ISS PBL12 END | 52.817 |
| HIERARCH ESO ISS PBLA12 START | 37.7 |
| HIERARCH ESO ISS PBLA12 END | 38.0 |
| HIERARCH ESO ISS PBL13 START | 94.591 |
| HIERARCH ESO ISS PBL13 END | 93.901 |
| HIERARCH ESO ISS PBLA13 START | 43.9 |
| HIERARCH ESO ISS PBLA13 END | 44.3 |
| HIERARCH ESO ISS PBL14 START | 112.769 |
| HIERARCH ESO ISS PBL14 END | 111.186 |
| HIERARCH ESO ISS PBLA14 START | 74.184 |
| HIERARCH ESO ISS PBLA14 END | 74.745 |
| HIERARCH ESO ISS PBL23 START | 42.192 |
| HIERARCH ESO ISS PBL23 END | 41.796 |
| HIERARCH ESO ISS PBLA23 START | 51.8 |
| HIERARCH ESO ISS PBLA23 END | 52.2 |
| HIERARCH ESO ISS PBL24 START | 76.889 |
| HIERARCH ESO ISS PBL24 END | 75.751 |
| HIERARCH ESO ISS PBLA24 START | 98.463 |
| HIERARCH ESO ISS PBLA24 END | 99.384 |
| HIERARCH ESO ISS PBL34 START | 56.901 |
| HIERARCH ESO ISS PBL34 END | 56.415 |
| HIERARCH ESO ISS PBLA34 START | 131.085 |
| HIERARCH ESO ISS PBLA34 END | 132.308 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002337 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002731 |
| HIERARCH ESO ISS AMBI TEMP | 12.29 |
| HIERARCH ESO ISS AMBI FWHM START | 1.08 |
| HIERARCH ESO ISS AMBI FWHM END | 0.84 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |