Exposure
- ID
- GRAVI.2025-07-08T00:38:56.099_2
- Header ID
- GRAVI.2025-07-08T00:38:56.099
- Date updated
- 2025-07-08 00:55:34 UTC+0000
- Release date
- 2026-07-08 00:55:34 UTC+0000
- UTC Start
- 2025-07-08 00:38:56.099
- UTC End
- 2025-07-08 00:44:56.099
- MJD Start
- 60864.02703818
- MJD End
- 60864.031204846666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009340500000000002
- Ambient temperature (°C)
- 15.66
- Seeing (arcsec)
- 0.515
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 | 56.2590 | 56.2720 | 4.8000 | 5.7000 |
| U1-U3 | 100.9840 | 101.0600 | 9.9000 | 11.0000 |
| U1-U4 | 118.2320 | 118.9980 | 34.7760 | 36.0780 |
| U2-U3 | 45.2390 | 45.3190 | 16.4000 | 17.5000 |
| U2-U4 | 74.9880 | 75.9820 | 56.8100 | 58.0740 |
| U3-U4 | 50.0550 | 50.9590 | 92.7010 | 93.4280 |
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 | 60864.02703818 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416193 |
| DEC | -29.00744 |
| 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 | 56.259 |
| HIERARCH ESO ISS PBL12 END | 56.272 |
| HIERARCH ESO ISS PBLA12 START | 4.8 |
| HIERARCH ESO ISS PBLA12 END | 5.7 |
| HIERARCH ESO ISS PBL13 START | 100.984 |
| HIERARCH ESO ISS PBL13 END | 101.06 |
| HIERARCH ESO ISS PBLA13 START | 9.9 |
| HIERARCH ESO ISS PBLA13 END | 11.0 |
| HIERARCH ESO ISS PBL14 START | 118.232 |
| HIERARCH ESO ISS PBL14 END | 118.998 |
| HIERARCH ESO ISS PBLA14 START | 34.776 |
| HIERARCH ESO ISS PBLA14 END | 36.078 |
| HIERARCH ESO ISS PBL23 START | 45.239 |
| HIERARCH ESO ISS PBL23 END | 45.319 |
| HIERARCH ESO ISS PBLA23 START | 16.4 |
| HIERARCH ESO ISS PBLA23 END | 17.5 |
| HIERARCH ESO ISS PBL24 START | 74.988 |
| HIERARCH ESO ISS PBL24 END | 75.982 |
| HIERARCH ESO ISS PBLA24 START | 56.81 |
| HIERARCH ESO ISS PBLA24 END | 58.074 |
| HIERARCH ESO ISS PBL34 START | 50.055 |
| HIERARCH ESO ISS PBL34 END | 50.959 |
| HIERARCH ESO ISS PBLA34 START | 92.701 |
| HIERARCH ESO ISS PBLA34 END | 93.428 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009253 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009428 |
| HIERARCH ESO ISS AMBI TEMP | 15.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.53 |
| HIERARCH ESO ISS AMBI FWHM END | 0.5 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |