TNS Astronomical Transient Report No. 266687 [ 2025TNSTR3286....1T ]
Date Received (UTC): 2025-08-20 10:05:01
Date made public:
Sender: ATLAS_Bot1
Reporting Group: ATLAS Discovery Data Source: ATLAS
J. Tonry, L. Denneau, H. Weiland, R. Siverd (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 (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (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 2025upb
Discoverer internal name: ATLAS25juq
Coordinates (J2000): RA = 00:45:00.502 (11.2520933333) DEC = +43:31:04.09 (43.5178033333)
Discovery date: 2025-08-17 11:18:23.904 (JD=2460904.97111)
Photometry
Discovery (first detection):
Discovery date: 2025-08-17 11:18:23.904
Flux: 19.807 ABMag
Filter: orange-ATLAS
Instrument: ATLAS-02
Telescope: ATLAS Haleakala
Last non-detection:
Last non-detection date: 2025-08-16 12:22:50
Limiting flux: 19.91 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/2025upb
Date Received (UTC): 2025-08-20 10:05:01
Date made public:
Sender: ATLAS_Bot1
Reporting Group: ATLAS Discovery Data Source: ATLAS
J. Tonry, L. Denneau, H. Weiland, R. Siverd (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 (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (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 2025upb
Discoverer internal name: ATLAS25juq
Coordinates (J2000): RA = 00:45:00.502 (11.2520933333) DEC = +43:31:04.09 (43.5178033333)
Discovery date: 2025-08-17 11:18:23.904 (JD=2460904.97111)
Photometry
Discovery (first detection):
Discovery date: 2025-08-17 11:18:23.904
Flux: 19.807 ABMag
Filter: orange-ATLAS
Instrument: ATLAS-02
Telescope: ATLAS Haleakala
Last non-detection:
Last non-detection date: 2025-08-16 12:22:50
Limiting flux: 19.91 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/2025upb