RA/DEC (2000)
16:16:57.433 +35:03:20.81
244.239306008 +35.0557812179
Type
SN IIb
Redshift
0.0252
Reporting Group
Pan-STARRS
Discovering Data Source
Pan-STARRS
Discovery Date
2025-08-20 08:40:32.736
TNS AT
Y
Public
Y
Discovery Mag
20.47
Filter
i-P1
Reporter/s
K. C. Chambers, T. de Boer, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, G. Paek, A. Schultz, I. A. Smith, R. J. Wainscoat (IfA, University of Hawaii), S. J. Smartt, K. W. Smith (University of Oxford / Queen's University Belfast), S. Srivastav (University of Oxford), D. R. Young, M. Fulton, M. Nicholl, T. Moore, J. Weston, C. R. Angus (Queen's University Belfast)

Spectra

 SN_2025uso - 2025-09-25 02:50:40 P60 / SEDM (ZTF)z=
Show H at z=vexp= km/s
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Show [Ca II] at z=vexp= km/s
Show Fe II at z=vexp= km/s
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Show Tellurics 
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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
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 PS1_GPC1_i
 PS1_GPC1_r
   
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
22120 2025-09-25 02:50:40 P60 / SEDM 2700 SEDmRobot ZTF tns_2025uso_2025-09-25_02-50-39.527948_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-22 22:57:01 - 2025-08-24 20:36:44 2460910.45626 - 2460912.35884 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512159 2025-08-24 20:36:44 2460912.35884 19.243 0.085 19.99 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 90 Robot
512158 2025-08-22 22:57:01 2460910.45626 19.8 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-08-17 05:11:16 - 2025-08-23 03:53:19 2460904.7161574 - 2460910.6620255 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511853 2025-08-23 03:53:19 2460910.6620255 19.984 0.183783 20.4703 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
511851 2025-08-17 05:11:16 2460904.7161574 20.5407 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-08-17 04:15:18 - 2025-08-23 05:09:08 2460904.6772917 - 2460910.7146759 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511854 2025-08-23 05:09:08 2460910.7146759 19.4619 0.178363 19.9627 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
511852 2025-08-21 04:28:42 2460908.6865972 20.1049 0.291408 20.4682 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
515756 2025-08-21 04:28:42 2460908.6865972 20.1049 0.291408 20.4682 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
515755 2025-08-17 04:15:18 2460904.6772917 20.6406 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
i-P1 PS1_GPC1 2025-08-20 08:40:33 - 2025-08-20 08:40:33 2460907.86149 - 2460907.86149 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510740 2025-08-20 08:40:33 2460907.86149 20.47 0.18 20.7 ABMag i-P1 PS1_GPC1 45 Robot
r-P1 PS1_GPC1 2025-08-29 05:52:52 - 2025-08-29 05:52:52 2460916.74505 - 2460916.74505 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513918 2025-08-29 05:52:52 2460916.74505 18.8 0.1 20.6 ABMag r-P1 PS1_GPC1 27 Robot
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
269371 2025-09-05 18:15:27 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 16:16:57.446 +35:03:20.86 2025-08-21 04:28:41.998 20.1049 g-ZTF PSN ZTF18aawigkf ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF18aawigkf N
268469 2025-08-29 18:32:01 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 16:16:57.433 +35:03:20.81 2025-08-29 05:52:52.320 18.8 r-P1 PSN PS25grz Pan-STARRS N
267585 2025-08-25 10:21:41 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:16:57.463 +35:03:20.47 2025-08-24 20:36:43.776 19.243 wide-ATLAS PSN ATLAS25kjl ATLAS N
267400 2025-08-23 22:12:03 ALeRCE F. Forster,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 16:16:57.459 +35:03:20.83 2025-08-21 04:28:41.998 20.1049 g-ZTF PSN SDSS J161657.46+350321.6 ZTF18aawigkf ZTF Early SN candidate (g-rise > 0.13+-0.07 mag/day, r-rise > 0.09+-0.02 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF18aawigkf N
266840 2025-08-21 00:42:51 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 16:16:57.436 +35:03:20.87 2025-08-20 08:40:32.736 20.47 i-P1 PSN PS25grz Pan-STARRS 2025TNSTR3300....1C N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22120 2025-09-29 23:35:14 ZTF_Bot1 J. Sollerman, A. Mehla, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN IIb 0.0252 1 ZTF 2025TNSCR3920....1S
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
22120 2025-09-25 02:50:40 P60 / SEDM 2700 SEDmRobot ZTF tns_2025uso_2025-09-25_02-50-39.527948_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 268469 of Group Pan-STARRS
Previous RA, DEC: 16:16:57.436, +35:03:20.87 (244.239316182, +35.0557958534)
Updated RA, DEC: 16:16:57.433, +35:03:20.81 (244.239306008, +35.0557812179)