Exposure
- ID
- GRAVI.2025-05-13T08:15:47.001_2
- Header ID
- GRAVI.2025-05-13T08:15:47.001
- Date updated
- 2025-05-13 08:31:02 UTC+0000
- Release date
- 2026-05-13 08:31:02 UTC+0000
- UTC Start
- 2025-05-13 08:15:47.001
- UTC End
- 2025-05-13 08:21:47.001
- MJD Start
- 60808.34429399
- MJD End
- 60808.34846065666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0144445
- Ambient temperature (°C)
- 16.06
- Seeing (arcsec)
- 0.315
Observation
- ID
- 67241
- Category
- science
- Program ID
- 115.27WT.001
- 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
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 55.3710 | 55.2100 | 33.0000 | 33.5000 |
| U1-U3 | 99.8070 | 99.4310 | 39.4000 | 39.9000 |
| U1-U4 | 124.9040 | 124.0240 | 68.1730 | 68.7990 |
| U2-U3 | 45.1970 | 44.9790 | 47.2000 | 47.7000 |
| U2-U4 | 85.7880 | 85.1370 | 89.9950 | 90.7850 |
| U3-U4 | 60.9420 | 60.6360 | 120.2610 | 121.2190 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60808.34429399 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416504 |
| 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 | 55.371 |
| HIERARCH ESO ISS PBL12 END | 55.21 |
| HIERARCH ESO ISS PBLA12 START | 33.0 |
| HIERARCH ESO ISS PBLA12 END | 33.5 |
| HIERARCH ESO ISS PBL13 START | 99.807 |
| HIERARCH ESO ISS PBL13 END | 99.431 |
| HIERARCH ESO ISS PBLA13 START | 39.4 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 124.904 |
| HIERARCH ESO ISS PBL14 END | 124.024 |
| HIERARCH ESO ISS PBLA14 START | 68.173 |
| HIERARCH ESO ISS PBLA14 END | 68.799 |
| HIERARCH ESO ISS PBL23 START | 45.197 |
| HIERARCH ESO ISS PBL23 END | 44.979 |
| HIERARCH ESO ISS PBLA23 START | 47.2 |
| HIERARCH ESO ISS PBLA23 END | 47.7 |
| HIERARCH ESO ISS PBL24 START | 85.788 |
| HIERARCH ESO ISS PBL24 END | 85.137 |
| HIERARCH ESO ISS PBLA24 START | 89.995 |
| HIERARCH ESO ISS PBLA24 END | 90.785 |
| HIERARCH ESO ISS PBL34 START | 60.942 |
| HIERARCH ESO ISS PBL34 END | 60.636 |
| HIERARCH ESO ISS PBLA34 START | 120.261 |
| HIERARCH ESO ISS PBLA34 END | 121.219 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.012659 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.01623 |
| HIERARCH ESO ISS AMBI TEMP | 16.06 |
| HIERARCH ESO ISS AMBI FWHM START | 0.36 |
| HIERARCH ESO ISS AMBI FWHM END | 0.27 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |