Exposure
- ID
- GRAVI.2025-08-08T02:01:35.622_2
- Header ID
- GRAVI.2025-08-08T02:01:35.622
- Date updated
- 2025-08-08 02:15:47 UTC+0000
- Release date
- 2026-08-08 02:15:46 UTC+0000
- UTC Start
- 2025-08-08 02:01:35.622
- UTC End
- 2025-08-08 02:07:35.622
- MJD Start
- 60895.08444007
- MJD End
- 60895.08860673667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002718
- Ambient temperature (°C)
- 12.9
- Seeing (arcsec)
- 0.905
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 | 55.9990 | 55.8960 | 30.1000 | 30.7000 |
| U1-U3 | 101.2650 | 101.0250 | 36.5000 | 37.1000 |
| U1-U4 | 128.2540 | 127.7170 | 64.9180 | 65.5930 |
| U2-U3 | 46.0350 | 45.8980 | 44.3000 | 44.9000 |
| U2-U4 | 88.2390 | 87.8530 | 86.1380 | 86.9080 |
| U3-U4 | 62.0720 | 61.9010 | 115.7900 | 116.6530 |
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 | 60895.08444007 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417423 |
| DEC | -29.00674 |
| 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 | 55.999 |
| HIERARCH ESO ISS PBL12 END | 55.896 |
| HIERARCH ESO ISS PBLA12 START | 30.1 |
| HIERARCH ESO ISS PBLA12 END | 30.7 |
| HIERARCH ESO ISS PBL13 START | 101.265 |
| HIERARCH ESO ISS PBL13 END | 101.025 |
| HIERARCH ESO ISS PBLA13 START | 36.5 |
| HIERARCH ESO ISS PBLA13 END | 37.1 |
| HIERARCH ESO ISS PBL14 START | 128.254 |
| HIERARCH ESO ISS PBL14 END | 127.717 |
| HIERARCH ESO ISS PBLA14 START | 64.918 |
| HIERARCH ESO ISS PBLA14 END | 65.593 |
| HIERARCH ESO ISS PBL23 START | 46.035 |
| HIERARCH ESO ISS PBL23 END | 45.898 |
| HIERARCH ESO ISS PBLA23 START | 44.3 |
| HIERARCH ESO ISS PBLA23 END | 44.9 |
| HIERARCH ESO ISS PBL24 START | 88.239 |
| HIERARCH ESO ISS PBL24 END | 87.853 |
| HIERARCH ESO ISS PBLA24 START | 86.138 |
| HIERARCH ESO ISS PBLA24 END | 86.908 |
| HIERARCH ESO ISS PBL34 START | 62.072 |
| HIERARCH ESO ISS PBL34 END | 61.901 |
| HIERARCH ESO ISS PBLA34 START | 115.79 |
| HIERARCH ESO ISS PBLA34 END | 116.653 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002561 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002875 |
| HIERARCH ESO ISS AMBI TEMP | 12.9 |
| HIERARCH ESO ISS AMBI FWHM START | 0.92 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |