RA/DEC (2000)
14:44:44.294 +20:29:40.66
221.184559739 +20.494626607
Type
SLSN-II
Redshift
0.152
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-12-15 12:06:59.999
TNS AT
Y
Public
Y
Host Name
SDSS J144444.30+202940.4
Discovery Mag
18.7697
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, J. Correa-Orellana, H. Kumar, 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
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025ahcl - 2025-12-19 12:23:38 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-N_GOTO-2_L
 ▌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
22722 2025-12-19 12:23:38 P60 / SEDM 2700 SEDmRobot ZTF tns_2025ahcl_2025-12-19_12-23-37.677330_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-08-12 21:11:55 - 2025-08-12 21:11:55 2460900.383282 - 2460900.383282 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547985 2025-08-12 21:11:55 2460900.383282 19.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
w-P1 PS2_GPC2 2026-01-16 14:48:01 - 2026-01-16 14:48:01 2461057.11668 - 2461057.11668 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
553230 2026-01-16 14:48:01 2461057.11668 18.4 0.02 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2026-01-09 06:11:36 - 2026-01-09 06:11:36 2461049.758048 - 2461049.758048 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547986 2026-01-09 06:11:36 2461049.758048 18.34 0.08 ABMag L-GOTO GOTO-N_GOTO-1 180
r-ZTF P48_ZTF-Cam 2025-12-15 13:15:49 - 2025-12-15 13:15:49 2461025.0526505 - 2461025.0526505 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
539385 2025-12-15 13:15:49 2461025.0526505 18.7737 0.0862336 20.4815 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-12-15 12:07:00 - 2025-12-15 12:07:00 2461025.0048611 - 2461025.0048611 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
539384 2025-12-15 12:07:00 2461025.0048611 18.7697 0.0827437 20.1959 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-12-10 15:57:15 - 2025-12-11 15:21:32 2461020.16476 - 2461021.13995 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546024 2025-12-11 15:21:32 2461021.13995 18.654 0.148 18.94 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
546023 2025-12-10 15:57:15 2461020.16476 17.78 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
288616 2026-01-24 12:33:46 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 14:44:44.294 +20:29:40.66 2026-01-16 14:48:01.152 18.4 w-P1 PSN PS26ke Pan-STARRS N
286209 2026-01-09 17:47:16 GOTO_bot G. Ramsay,D. O'Neill,K. Ackley et al. GOTO GOTO 14:44:44.313 +20:29:40.64 2026-01-09 06:11:35.520 18.34 L-GOTO Other GOTO26ca GOTO N
284772 2025-12-31 12:16:34 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 14:44:44.299 +20:29:40.74 2025-12-11 15:21:31.680 18.654 orange-ATLAS PSN ATLAS25qma ATLAS N
280842 2025-12-16 13:11:21 ALeRCE A. Munoz-Arancibia,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 14:44:44.308 +20:29:40.73 2025-12-15 12:06:59.999 18.7697 g-ZTF PSN SDSS J144444.30+202940.4 ZTF25achwzws 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/ZTF25achwzws 2025TNSTR4996....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
22721 2026-01-02 21:40:57 ZTF_Bot1 J. Sollerman, J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SLSN-II 0.152 1 ZTF 2026TNSCR..13....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
22722 2025-12-19 12:23:38 P60 / SEDM 2700 SEDmRobot ZTF tns_2025ahcl_2025-12-19_12-23-37.677330_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sat, 01/24/2026 - 12:33

Object coordinates updated

Object coordinates updated according to AT-report 288616 of Group Pan-STARRS
Previous RA, DEC: 14:44:44.308, +20:29:40.73 (221.18461564192, +20.494648351966)
Updated RA, DEC: 14:44:44.294, +20:29:40.66 (221.184559739, +20.494626607)