RA/DEC (2000)
02:19:54.699 +29:50:48.81
34.9779121697 +29.8468916871
Type
SN II
Redshift
0.037
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-09-20 10:34:44.999
TNS AT
Y
Public
Y
Host Name
SDSS J021954.57+295050.3
Discovery Mag
20.0659
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_2025yer - 2025-10-13 00:00:00 NOT / ALFOSC (None)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
 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
22216 2025-10-13 00:00:00 NOT / ALFOSC 1800 Kostas Valeckas Niko Pyykkinen None tns_2025yer_2025-10-13_NOT_ALFOSC_None.dat tns_2025yer_2025-10-13_NOT_ALFOSC_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-09-21 01:36:02 - 2025-09-21 01:36:02 2460939.56669 - 2460939.56669 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519618 2025-09-21 01:36:02 2460939.56669 19.73 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-09-15 01:01:34 - 2025-09-27 23:20:27 2460933.542763 - 2460946.472545 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521091 2025-09-27 23:20:27 2460946.472545 17.83 0.04 ABMag L-GOTO GOTO-N_GOTO-2 180
521090 2025-09-15 01:01:34 2460933.542763 18.4 ABMag L-GOTO GOTO-N_GOTO-2 90 [Last non detection]
w-P1 PS2_GPC2 2025-09-16 14:41:19 - 2025-09-16 14:41:19 2460935.11203 - 2460935.11203 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520332 2025-09-16 14:41:19 2460935.11203 21.23 0.24 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2025-09-20 10:32:42 - 2025-09-20 10:34:45 2460938.939375 - 2460938.9407986 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518963 2025-09-20 10:34:45 2460938.9407986 20.0659 0.147279 20.5006 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
518962 2025-09-20 10:32:42 2460938.939375 20.4932 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-09-23 11:43:49 - 2025-09-23 11:43:49 2460941.98876 - 2460941.98876 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519619 2025-09-23 11:43:49 2460941.98876 18.643 0.103 19.46 ABMag cyan-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
271869 2025-09-30 12:51:07 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 02:19:54.686 +29:50:49.04 2025-09-27 23:20:27.456 17.83 L-GOTO Other GOTO25hxt GOTO N
271476 2025-09-26 19:46:22 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 02:19:54.699 +29:50:48.81 2025-09-16 14:41:19.392 21.23 w-P1 PSN PS25hqp Pan-STARRS N
271174 2025-09-24 09:58:30 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 02:19:54.640 +29:50:49.37 2025-09-23 11:43:48.864 18.643 cyan-ATLAS PSN ATLAS25lwa ATLAS N
270875 2025-09-21 15:29:43 ALeRCE S. Jurado, F.E. Bauer, F. Forster et al. ALeRCE ZTF 02:19:54.701 +29:50:48.79 2025-09-20 10:34:44.999 20.0659 r-ZTF PSN SDSS J021954.57+295050.3 ZTF25abshatc ZTF Early SN candidate (r-rise > 1.00 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/ZTF25abshatc 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
22216 2025-10-14 22:45:48 Niko Pyykkinen Niko Pyykkinen (UTU/NOT), Kostas Valeckas (NBI/NOT), Hanindyo Kuncarayakti (UTU) None SN II 0.037 1 Redshift from host (2MASX J02195458+2950514), which matches the redshift from hostlines (~ 0.036). Object is likely a Type II SN at high galactic extinction. Weak Balmer P-Cygni features are present in the spectrum. 2025TNSCR4121....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
22216 2025-10-13 00:00:00 NOT / ALFOSC 1800 Kostas Valeckas Niko Pyykkinen None tns_2025yer_2025-10-13_NOT_ALFOSC_None.dat tns_2025yer_2025-10-13_NOT_ALFOSC_None.fits Object

Comments

TNS
System

Fri, 09/26/2025 - 19:46

Object coordinates updated

Object coordinates updated according to AT-report 271476 of Group Pan-STARRS
Previous RA, DEC: 02:19:54.701, +29:50:48.79 (34.9779222, +29.8468853)
Updated RA, DEC: 02:19:54.699, +29:50:48.81 (34.9779121697, +29.8468916871)