RA/DEC (2000)
05:14:39.222 -15:34:36.23
78.6634241487 -15.5767308722
Type
SN Ia-91T-like
Redshift
0.12
Related AstroNotes: 2025-281
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-30 03:17:43.584
TNS AT
Y
Public
Y
Discovery Mag
19.557
Filter
cyan-ATLAS
Reporter/s
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)

Spectra

 SN_2025wos - 2025-09-02 05:34:26 NOT / ALFOSC (GOTO)z=
Show H at z=vexp= km/s
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Show [Ca II] at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ATLAS-TDO_ATLAS-05_wide
 GOTO-S_GOTO-3_L
 PS2_GPC2_w
 ATLAS-STH_ATLAS-03_cyan
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21951 2025-09-02 05:34:26 NOT / ALFOSC I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025wos_2025-09-02_05-34-25.603_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-29 05:12:04 - 2025-08-29 05:12:04 2460916.71671 - 2460916.71671 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514851 2025-08-29 05:12:04 2460916.71671 19.83 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-08-25 19:03:48 - 2025-08-28 18:49:55 2460913.294299 - 2460916.284669 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514978 2025-08-28 18:49:55 2460916.284669 19.67 0.16 ABMag L-GOTO GOTO-S_GOTO-3 180
514977 2025-08-25 19:03:48 2460913.294299 19.8 ABMag L-GOTO GOTO-S_GOTO-3 135 [Last non detection]
w-P1 PS2_GPC2 2025-10-02 14:15:48 - 2025-10-02 14:15:48 2460951.09431 - 2460951.09431 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546742 2025-10-02 14:15:48 2460951.09431 20.25 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-08-30 03:17:44 - 2025-08-30 03:17:44 2460917.63731 - 2460917.63731 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514852 2025-08-30 03:17:44 2460917.63731 19.557 0.164 19.76 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
r-ZTF P48_ZTF-Cam 2025-09-10 12:01:20 - 2025-09-10 12:01:20 2460929.0009259 - 2460929.0009259 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516370 2025-09-10 12:01:20 2460929.0009259 19.0206 0.110162 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-09-06 11:31:32 - 2025-09-06 11:31:32 2460924.9802315 - 2460924.9802315 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516369 2025-09-06 11:31:32 2460924.9802315 19.0996 0.193295 ABMag g-ZTF P48_ZTF-Cam
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
285417 2026-01-01 21:11:35 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 05:14:39.222 -15:34:36.23 2025-10-02 14:15:48.384 20.25 w-P1 PSN PS25mgx Pan-STARRS N
269655 2025-09-11 07:40:01 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 05:14:39.212 -15:34:36.13 2025-09-06 11:31:32.001 19.0996 g-ZTF PSN ZTF25aboyxcy ZTF N
268981 2025-09-01 21:48:55 GOTO_bot I. Worssam,M. Pursiainen,K. Ackley et al. GOTO GOTO 05:14:39.213 -15:34:36.00 2025-08-28 18:49:55.488 19.67 L-GOTO Other GOTO25grk GOTO N
268911 2025-09-01 10:51:20 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 05:14:39.218 -15:34:36.24 2025-08-30 03:17:43.584 19.557 cyan-ATLAS PSN ATLAS25kwg ATLAS 2025TNSTR3490....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21951 2025-09-02 09:59:16 David O'Neill I. Worssam, M. Pursiainen, T. Killestein, J. Lyman, D. O'Neill, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, A. Kumar on behalf of GOTO collaboration GOTO SN Ia-91T-like 0.12 1 GOTO Classified using template matching with SNID-SAGE. Consistent with a Ia-91T like a few days pre-peak. In agreement with current light curve evolution. Redshift from template. 2025TNSCR3528....1W
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21951 2025-09-02 05:34:26 NOT / ALFOSC I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025wos_2025-09-02_05-34-25.603_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 285417 of Group Pan-STARRS
Previous RA, DEC: 05:14:39.212, -15:34:36.13 (78.6633817, -15.5767033)
Updated RA, DEC: 05:14:39.222, -15:34:36.23 (78.6634241487, -15.5767308722)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 269655 of Group ZTF
Previous RA, DEC: 05:14:39.218, -15:34:36.24 (78.663408, -15.576732)
Updated RA, DEC: 05:14:39.212, -15:34:36.13 (78.6633817, -15.5767033)