RA/DEC (2000)
09:40:41.406 +02:15:57.38
145.172523612 +2.26593784619
Type
SN II
Redshift
0.015
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-10-04 12:31:32.998
TNS AT
Y
Public
Y
Discovery Mag
18.9711
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF

Spectra

 SN_2025zpi - 2025-10-11 05:52:38 LT / SPRAT (GOTO)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
Show C II at z=vexp= km/s
Show C III at z=vexp= km/s
Show C IV at z=vexp= km/s
Show N II at z=vexp= km/s
Show N III at z=vexp= km/s
Show N IV at z=vexp= km/s
Show N V at z=vexp= km/s
Show O at z=vexp= km/s
Show [O I] at z=vexp= km/s
Show O II at z=vexp= km/s
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Show [O III] at z=vexp= km/s
Show O V at z=vexp= km/s
Show O VI at z=vexp= km/s
Show Na at z=vexp= km/s
Show Mg at z=vexp= km/s
Show Mg II at z=vexp= km/s
Show Si II at z=vexp= km/s
Show S II at z=vexp= km/s
Show Ca II at z=vexp= km/s
Show [Ca II] at z=vexp= km/s
Show Fe II at z=vexp= km/s
Show Fe III at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
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Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 GOTO-N_GOTO-2_L
 PS2_GPC2_i
 ATLAS-CHL_ATLAS-04_orange
 BG4_BlackGEM-Cam4_BG-q
 ML1_MeerLICHT-Cam_BG-q
 P48_ZTF-Cam_r
 ATLAS-HKO_ATLAS-02_orange
   
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
22199 2025-10-11 05:52:38 LT / SPRAT Robotic GOTO tns_2025zpi_2025-10-11_05-52-37.805_LT_SPRAT_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-05-25 21:17:12 - 2025-10-08 06:04:35 2460821.386947 - 2460956.753184 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522520 2025-10-08 06:04:35 2460956.753184 17.56 0.09 ABMag L-GOTO GOTO-N_GOTO-2 180
522519 2025-05-25 21:17:12 2460821.386947 19.6 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2025-11-15 12:21:54 - 2025-11-15 12:21:54 2460995.01521 - 2460995.01521 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
533024 2025-11-15 12:21:54 2460995.01521 17.81 0.02 20.7 ABMag i-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-06-24 23:40:29 - 2025-06-24 23:40:29 2460851.48645 - 2460851.48645 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524227 2025-06-24 23:40:29 2460851.48645 18.74 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-11-13 07:28:43 - 2025-11-13 07:28:43 2460992.8116088 - 2460992.8116088 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530788 2025-11-13 07:28:43 2460992.8116088 17.96 0.06 19.66 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem ML1_MeerLICHT-Cam 2020-03-21 21:33:52 - 2020-03-21 21:33:52 2458930.3985185 - 2458930.3985185 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530787 2020-03-21 21:33:52 2458930.3985185 20.72 ABMag BG-q-BlackGem ML1_MeerLICHT-Cam 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2025-10-03 12:42:29 - 2025-10-05 12:42:48 2460952.0295023 - 2460954.0297222 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522328 2025-10-05 12:42:48 2460954.0297222 18.2787 0.0910015 ABMag r-ZTF P48_ZTF-Cam
522327 2025-10-04 12:31:33 2460953.0219097 18.9711 0.134557 ABMag r-ZTF P48_ZTF-Cam
522326 2025-10-03 12:42:29 2460952.0295023 19.9384 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-10-15 14:44:57 - 2025-10-15 14:44:57 2460964.11455 - 2460964.11455 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524228 2025-10-15 14:44:57 2460964.11455 17.703 0.11 18.86 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 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
277896 2025-11-22 00:29:14 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 09:40:41.406 +02:15:57.38 2025-11-15 12:21:54.144 17.81 i-P1 PSN PS25iko Pan-STARRS N
276621 2025-11-13 08:31:03 BlackGEM_Bot1 G. Ramsay,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 09:40:41.403 +02:15:57.70 2025-11-13 07:28:43.000 17.96 BG-q-BlackGem PSN BGEM J094041.40+021557.7 BlackGEM N
273552 2025-10-16 12:47:36 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 09:40:41.409 +02:15:57.79 2025-10-15 14:44:57.120 17.703 orange-ATLAS PSN ATLAS25mtr ATLAS N
272616 2025-10-08 07:36:34 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 09:40:41.406 +02:15:57.50 2025-10-08 06:04:34.752 17.56 L-GOTO Other GOTO25ihy GOTO N
272532 2025-10-05 14:25:22 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 09:40:41.401 +02:15:57.49 2025-10-04 12:31:32.998 18.9711 r-ZTF PSN ZTF25abvqjxe ZTF 2025TNSTR4013....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22199 2025-10-13 08:38:31 Miika Pursiainen M. Pursiainen, D. O'Neill, T. Killestein, J. Lyman, B. Godson, K. Ackley, M. J. Dyer, K. Ulaczyk, S. Belkin, D. Steeghs, D. K. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. P. Breton, L. K. Nuttall, D. Pollacco, J. Casares Vel'azquez, A. Kumar, D. O'Neill on behalf of GOTO collaboration GOTO SN II 0.015 1 GOTO Good template matches to Type II SNe owning to the broad Ha, Hb and HeI 5876 P-cygni lines. Redsfhit is based on tamplate matching. 2025TNSCR4105....1P
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
22199 2025-10-11 05:52:38 LT / SPRAT Robotic GOTO tns_2025zpi_2025-10-11_05-52-37.805_LT_SPRAT_GOTO.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 277896 of Group Pan-STARRS
Previous RA, DEC: 09:40:41.401, +02:15:57.49 (145.1725062, +2.2659708)
Updated RA, DEC: 09:40:41.406, +02:15:57.38 (145.172523612, +2.26593784619)