RA/DEC (2000)
21:28:04.734 +11:12:49.58
322.019726602 +11.2137721709
Type
SN Ia
Redshift
0.07748712
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-09-20 04:57:13.997
TNS AT
Y
Public
Y
Host Name
SDSS J212804.80+111250.7
Host Redshift
0.07748712
Discovery Mag
20.3096
Filter
r-ZTF
Reporter/s
S. Jurado, F.E. Bauer, F. Forster, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025yew - 2025-10-08 06:50:32 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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_z
   
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
22220 2025-10-08 06:50:32 P60 / SEDM 2700 SEDmRobot ZTF tns_2025yew_2025-10-08_06-50-31.796443_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-09-29 00:11:20 - 2025-09-29 00:11:20 2460947.50787 - 2460947.50787 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520709 2025-09-29 00:11:20 2460947.50787 18.706 0.07 20.02 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-09-28 02:45:54 - 2025-09-28 02:45:54 2460946.61521 - 2460946.61521 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520708 2025-09-28 02:45:54 2460946.61521 18.94 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-09-15 22:06:41 - 2025-09-27 21:49:28 2460934.421314 - 2460946.409349 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521099 2025-09-27 21:49:28 2460946.409349 18.7 0.09 ABMag L-GOTO GOTO-N_GOTO-1 180
521098 2025-09-15 22:06:41 2460934.421314 20.1 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-20 04:57:14 - 2025-09-20 04:57:14 2460938.706412 - 2460938.706412 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518981 2025-09-20 04:57:14 2460938.706412 20.3096 0.189896 20.6584 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-09-16 07:29:56 - 2025-09-16 07:29:56 2460934.8124537 - 2460934.8124537 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518980 2025-09-16 07:29:56 2460934.8124537 20.2394 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
z-P1 PS1_GPC1 2025-09-30 05:17:09 - 2025-09-30 05:17:09 2460948.72024 - 2460948.72024 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520911 2025-09-30 05:17:09 2460948.72024 19.26 0.11 20.4 ABMag z-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
271873 2025-09-30 12:51:54 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 21:28:04.789 +11:12:50.01 2025-09-27 21:49:27.840 18.7 L-GOTO Other GOTO25hwg GOTO N
271778 2025-09-30 09:15:01 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 21:28:04.734 +11:12:49.58 2025-09-30 05:17:08.736 19.26 z-P1 PSN PS25hrq Pan-STARRS N
271674 2025-09-29 09:44:43 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:28:04.759 +11:12:49.99 2025-09-29 00:11:19.968 18.706 wide-ATLAS PSN ATLAS25mcm ATLAS N
270881 2025-09-21 15:29:43 ALeRCE S. Jurado,F.E. Bauer,F. Forster et al. ALeRCE ZTF 21:28:04.751 +11:12:49.29 2025-09-20 04:57:13.997 20.3096 r-ZTF PSN SDSS J212804.80+111250.7 ZTF25abscivt ZTF SN candidate 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/ZTF25abscivt 2025TNSTR3789....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
22220 2025-10-14 22:56:40 ZTF_Bot1 J. Sollerman, A. Mehla, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.07748712 1 ZTF 2025TNSCR4123....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
22220 2025-10-08 06:50:32 P60 / SEDM 2700 SEDmRobot ZTF tns_2025yew_2025-10-08_06-50-31.796443_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 09/30/2025 - 09:15

Object coordinates updated

Object coordinates updated according to AT-report 271778 of Group Pan-STARRS
Previous RA, DEC: 21:28:04.751, +11:12:49.29 (322.0197953, +11.2136926)
Updated RA, DEC: 21:28:04.734, +11:12:49.58 (322.019726602, +11.2137721709)