RA/DEC (2000)
23:57:31.684 -22:00:11.99
359.382017441 -22.0033296401
Type
SN Ia
Redshift
0.033603
Discovery ReportClassification Report
Reporting Group
YSE
Discovering Data Source
Pan-STARRS
Discovery Date
2025-09-17 11:28:33.888
TNS AT
Y
Public
Y
Discovery Mag
20.27
Filter
i-P1
Reporter/s
D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello, Z. Ansari, N. Arendse, C. Gall, C. Grillo, S. H. Bruun, C. Hede, J. Hjorth, L. Izzo, H. Korhonen, S. Raimundo, D. Kodi Ramanah, A. Sarangi, R. Wojtak, H. Pfister (DARK, U Copenhagen), K. Auchettl (DARK, UC Santa Cruz, U Melbourne), K. C. Chambers, M. E. Huber, E. A. Magnier, T. J. L. de Boer, J. R. Fairlamb, C. C. Lin, R. J. Wainscoat, T. Lowe, G. Paek, A. S. B. Schultz, P. Minguez (IfA, Hawaii), A. Engel, A. Gagliano, G. Narayan, M. Soraisam (Illinois), Q. Wang (JHU), A. Rest (JHU, STScI), S. J. Smartt, K. W. Smith (Oxford / QUB), C. R. Angus (QUB), K. Alexander, P. Blanchard, L. DeMarchi, A. Hajela, W. Jacobson-Galan, R. Margutti, D. Matthews, C. Stauffer, M. Stroh (Northwestern), M. Drout (U Toronto), D. A. Coulter, G. Dimitriadis, R. J. Foley, T. Hung, C. D. Kilpatrick, C. Rojas-Bravo, M. R. Siebert (UC Santa Cruz), E. Ramirez-Ruiz (UC Santa Cruz, DARK)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025xxq - 2025-09-21 07:07:00 Lick-3m / KAST (UCSC)z=
 ▌SN_2025xxq - 2025-09-20 08:46:23 P60 / SEDM (ZTF)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
▌Show [O II] at z=vexp= km/s
▌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
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌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-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_i
 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
22068 2025-09-21 07:07:00 Lick-3m / KAST Ravjit Kaur UCSC tns_2025xxq_2025-09-21_07-07-00_Lick-3m_KAST_UCSC.flm Object
22076 2025-09-20 08:46:23 P60 / SEDM 2700 SEDmRobot jpurdum ZTF tns_2025xxq_2025-09-20_08-46-22.721535_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-09-28 11:59:36 - 2025-09-28 11:59:36 2460946.999719 - 2460946.999719 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521043 2025-09-28 11:59:36 2460946.999719 16.64 0.01 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-N_GOTO-2 2025-09-03 00:50:02 - 2025-09-03 00:50:02 2460921.534736 - 2460921.534736 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521042 2025-09-03 00:50:02 2460921.534736 19.1 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2025-09-17 11:28:34 - 2025-09-17 11:28:34 2460935.97817 - 2460935.97817 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518372 2025-09-17 11:28:34 2460935.97817 20.27 0.11 20.7 ABMag i-P1 PS2_GPC2 27 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-09-20 00:45:18 - 2025-09-22 23:01:02 2460938.53146 - 2460941.45905 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519271 2025-09-22 23:01:02 2460941.45905 17.696 0.053 19.66 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
519270 2025-09-20 00:45:18 2460938.53146 16.12 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
g-ZTF P48_ZTF-Cam 2025-09-16 07:31:35 - 2025-09-20 07:01:05 2460934.8135995 - 2460938.792419 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518621 2025-09-20 07:01:05 2460938.792419 18.2508 0.0754478 ABMag g-ZTF P48_ZTF-Cam
522365 2025-09-20 07:01:05 2460938.792419 18.2508 0.075448 20.0916 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
518620 2025-09-16 07:31:35 2460934.8135995 19.9535 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
522364 2025-09-16 07:31:35 2460934.8135995 19.9535 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
w-P1 PS1_GPC1 2025-09-18 09:50:22 - 2025-09-18 09:50:22 2460936.90998 - 2460936.90998 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518816 2025-09-18 09:50:22 2460936.90998 19.37 0.04 22 ABMag w-P1 PS1_GPC1 45 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
272550 2025-10-05 18:14:23 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 23:57:31.682 -22:00:11.86 2025-09-20 07:01:05.002 18.2508 g-ZTF PSN ZTF25absdyqi ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25absdyqi N
271842 2025-09-30 11:35:37 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 23:57:31.673 -22:00:12.15 2025-09-28 11:59:35.808 16.64 L-GOTO Other GOTO25hye GOTO N
270999 2025-09-23 08:44:24 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 23:57:31.693 -22:00:12.03 2025-09-22 23:01:01.920 17.696 orange-ATLAS PSN ATLAS25lvj ATLAS N
270809 2025-09-21 00:20:29 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 23:57:31.684 -22:00:11.99 2025-09-18 09:50:22.272 19.37 w-P1 PSN PS25hnw Pan-STARRS N
270721 2025-09-20 07:34:23 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 23:57:31.684 -22:00:11.85 2025-09-20 07:01:05.001 18.2508 g-ZTF PSN ZTF25absdyqi ZTF N
270592 2025-09-18 18:23:45 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 23:57:31.687 -22:00:11.95 2025-09-17 11:28:33.888 20.27 i-P1 PSN PS25hnw Pan-STARRS 2025TNSTR3761....1J N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22076 2025-09-22 15:20:23 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 0.033603 1 ZTF 2025TNSCR3815....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
22076 2025-09-20 08:46:23 P60 / SEDM 2700 SEDmRobot jpurdum ZTF tns_2025xxq_2025-09-20_08-46-22.721535_P60_SEDM_ZTF.ascii Object
22068 2025-09-21 21:24:49 Ravjit Kaur Ravjit Kaur (UCSC), Ryan Foley (UCSC) UCSC SN Ia 0.033 1 UCSC When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. We measure a Si II 6355 absorption velocity of -12,000 km/s. 2025TNSCR3801....1K
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
22068 2025-09-21 07:07:00 Lick-3m / KAST Ravjit Kaur UCSC tns_2025xxq_2025-09-21_07-07-00_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Sun, 09/21/2025 - 00:20

Object coordinates updated

Object coordinates updated according to AT-report 270809 of Group Pan-STARRS
Previous RA, DEC: 23:57:31.687, -22:00:11.95 (359.382030398, -22.0033205011)
Updated RA, DEC: 23:57:31.684, -22:00:11.99 (359.382017441, -22.0033296401)