TNS Astronomical Transient Report No. 306888 [ 2026TNSTR2351....1T ]
Date Received (UTC): 2026-06-03 00:16:09
Date made public:
Sender: ATLAS_Bot1
Reporting Group: ATLAS Discovery Data Source: ATLAS
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU) report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026oco
Discoverer internal name: ATLAS26gpu
Coordinates (J2000): RA = 10:01:46.954 (150.44564) DEC = -32:09:47.52 (-32.1632)
Discovery date: 2026-06-02 18:22:03.648 (JD=2461194.26532)
Photometry
Discovery (first detection):
Discovery date: 2026-06-02 18:22:03.648
Flux: 18.473 ABMag
Filter: orange-ATLAS
Instrument: ATLAS-03
Telescope: ATLAS Sutherland
Last non-detection:
Last non-detection date: 2026-06-01 06:33:59
Limiting flux: 18.31 ABMag
Filter: orange-ATLAS
Instrument: ATLAS-02
Telescope: ATLAS Haleakala
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026oco
Date Received (UTC): 2026-06-03 00:16:09
Date made public:
Sender: ATLAS_Bot1
Reporting Group: ATLAS Discovery Data Source: ATLAS
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU) report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026oco
Discoverer internal name: ATLAS26gpu
Coordinates (J2000): RA = 10:01:46.954 (150.44564) DEC = -32:09:47.52 (-32.1632)
Discovery date: 2026-06-02 18:22:03.648 (JD=2461194.26532)
Photometry
Discovery (first detection):
Discovery date: 2026-06-02 18:22:03.648
Flux: 18.473 ABMag
Filter: orange-ATLAS
Instrument: ATLAS-03
Telescope: ATLAS Sutherland
Last non-detection:
Last non-detection date: 2026-06-01 06:33:59
Limiting flux: 18.31 ABMag
Filter: orange-ATLAS
Instrument: ATLAS-02
Telescope: ATLAS Haleakala
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026oco