RA/DEC (2000)
22:31:55.513 +32:40:43.28
337.981305275 +32.6786887854
Type
SN Ia
Redshift
0.011
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-07-28 07:56:38.003
TNS AT
Y
Public
Y
Host Name
SDSS J223155.48+324044.1
Discovery Mag
20.362
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker

Spectra

 SN_2025snb - 2025-07-31 05:47:19 P60 / SEDM (ZTF)z=
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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

 LAST_LAST-Cam_Clear
 PS2_GPC2_w
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 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
21667 2025-07-31 05:47:19 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025snb_2025-07-31_05-47-19.462080_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2025-07-21 22:45:17 - 2025-09-10 22:18:44 2460878.44811 - 2460929.42968 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516340 2025-09-10 22:18:44 2460929.42968 18.26 ABMag Clear- LAST_LAST-Cam 400
516339 2025-07-21 22:45:17 2460878.44811 21.14 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
w-P1 PS2_GPC2 2025-08-03 09:21:35 - 2025-08-03 09:21:35 2460890.88999 - 2460890.88999 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507863 2025-08-03 09:21:35 2460890.88999 17.54 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-07-18 04:28:25 - 2025-08-21 01:02:09 2460874.686402 - 2460908.543161 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510772 2025-08-21 01:02:09 2460908.543161 16.9 0.01 ABMag L-GOTO GOTO-N_GOTO-1 360
510771 2025-07-18 04:28:25 2460874.686402 19.2 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-07-28 09:42:31 - 2025-07-28 09:42:31 2460884.9045255 - 2460884.9045255 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505765 2025-07-28 09:42:31 2460884.9045255 20.1306 0.166464 20.9089 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-07-26 09:22:47 - 2025-07-28 07:56:38 2460882.8908218 - 2460884.8309954 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505764 2025-07-28 07:56:38 2460884.8309954 20.362 0.221462 20.8022 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
505763 2025-07-26 09:22:47 2460882.8908218 20.6822 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-07-28 13:56:52 - 2025-07-29 13:00:41 2460885.08116 - 2460886.04214 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505964 2025-07-29 13:00:41 2460886.04214 19.542 0.18 19.71 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
505963 2025-07-28 13:56:52 2460885.08116 19.62 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
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
269643 2025-09-11 03:47:15 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 22:31:55.551 +32:40:43.18 2025-09-10 22:18:44.352 18.26 Clear- PSN LAST N
266854 2025-08-21 07:23:14 GOTO_bot S. Belkin,G. Ramsay,K. Ackley et al. GOTO GOTO 22:31:55.522 +32:40:43.34 2025-08-21 01:02:09.024 16.9 L-GOTO Other GOTO25gbq GOTO N
265274 2025-08-08 23:34:33 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 22:31:55.513 +32:40:43.28 2025-08-03 09:21:35.136 17.54 w-P1 PSN PS25gau Pan-STARRS N
264256 2025-07-29 15:17:41 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 22:31:55.514 +32:40:43.04 2025-07-29 13:00:40.896 19.542 orange-ATLAS PSN ATLAS25imv ATLAS N
264169 2025-07-28 20:50:02 ALeRCE A. Munoz-Arancibia,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 22:31:55.563 +32:40:43.25 2025-07-28 07:56:38.003 20.362 g-ZTF PSN SDSS J223155.48+324044.1 ZTF25abewmjr ZTF Early SN candidate (g-rise > 0.17+-0.11 mag/day, r-rise > 0.25+-0.08 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/ZTF25abewmjr 2025TNSTR2946....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21667 2025-07-31 06:40:19 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.011 1 ZTF 2025TNSCR3016....1F
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
21667 2025-07-31 05:47:19 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025snb_2025-07-31_05-47-19.462080_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 265274 of Group Pan-STARRS
Previous RA, DEC: 22:31:55.563, +32:40:43.25 (337.98151388844, +32.678680340828)
Updated RA, DEC: 22:31:55.513, +32:40:43.28 (337.981305275, +32.6786887854)