RA/DEC (2000)
14:46:46.252 +02:20:58.63
221.6927175 +2.3496196
Type
SN Ia-91T-like
Redshift
0.0801
Discovery ReportClassification Report
Related AstroNotes: 2025-139
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-04-24 08:03:11.002
TNS AT
Y
Public
Y
Host Name
SDSS J144646.10+022058.4
Host Redshift
0.08005937
Discovery Mag
20.0907
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, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, 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_2025iig - 2025-05-05 12:00:00 ANU-2.3m / WiFeS (DEBASS)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

 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
20982 2025-05-05 12:00:00 ANU-2.3m / WiFeS 1200 Robotic Bailey Martin DEBASS tns_2025iig_2025-05-05.5_ANU-2.3m_WiFeS_DEBASS.dat tns_2025iig_2025-05-05.5_ANU-2.3m_WiFeS_DEBASS.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-03-04 01:49:30 - 2025-05-05 19:44:51 2460373.57604 - 2460801.32281 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486843 2025-05-05 19:44:51 2460801.32281 18.8 ABMag Clear- LAST_LAST-Cam 400
486842 2024-03-04 01:49:30 2460373.57604 20.89 ABMag Clear- LAST_LAST-Cam 3600 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-04-24 23:31:24 - 2025-04-26 23:32:46 2460790.480139 - 2460792.48109 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487070 2025-04-26 23:32:46 2460792.48109 19.41 0.18 ABMag L-GOTO GOTO-N_GOTO-1 180
487069 2025-04-24 23:31:24 2460790.480139 19.7 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-04-22 08:46:44 - 2025-04-22 08:46:44 2460787.865787 - 2460787.865787 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484081 2025-04-22 08:46:44 2460787.865787 20.6381 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-04-24 08:03:11 - 2025-04-24 08:03:11 2460789.835544 - 2460789.835544 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484082 2025-04-24 08:03:11 2460789.835544 20.0907 0.135235 20.6914 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-05-03 09:23:24 - 2025-05-03 09:23:24 2460798.89125 - 2460798.89125 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486620 2025-05-03 09:23:24 2460798.89125 18.687 0.126 19.38 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-05-01 13:14:20 - 2025-05-01 13:14:20 2460797.05162 - 2460797.05162 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486619 2025-05-01 13:14:20 2460797.05162 19.31 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
254363 2025-05-07 10:44:03 GOTO_bot A. Kumar,J. Lyman,K. Ackley et al. GOTO GOTO 14:46:46.226 +02:20:58.41 2025-04-26 23:32:46.176 19.41 L-GOTO Other GOTO25cht GOTO N
254176 2025-05-05 19:58:15 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 14:46:46.274 +02:20:58.93 2025-05-05 19:44:50.784 18.8 Clear- PSN LAST N
253960 2025-05-04 21:23:39 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 14:46:46.252 +02:20:58.94 2025-05-03 09:23:24.000 18.687 orange-ATLAS PSN ATLAS25epq ATLAS N
252601 2025-04-24 18:51:30 ALeRCE A. Munoz-Arancibia,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 14:46:46.252 +02:20:58.63 2025-04-24 08:03:11.002 20.0907 g-ZTF PSN SDSS J144646.10+022058.4 ZTF25aaofxjv ZTF Early SN candidate (g-rise > 0.13+-0.03 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/ZTF25aaofxjv 2025TNSTR1515....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
20982 2025-05-06 03:50:51 Bailey Martin B. Martin (ANU), C. Lidman (ANU), D. Brout (Boston University), K. Auchettl (University of Melbourne/UCSC), P. Armstrong (ANU), D. Cao (ANU), and L. Rauf (ANU) DEBASS SN Ia-91T-like 0.0801 1 1 DEBASS Classified with superfit. The best fitting spectrum is SN1991T. 2025TNSCR1692....1M
Related files
File Comments Last Modified (UT) Modified By
tns_2025iig_atrep_20982_DEBASS.pdf The best fitting spectrum from superfit. 2025-05-06 03:50:52 Bailey Martin
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
20982 2025-05-05 12:00:00 ANU-2.3m / WiFeS 1200 Robotic Bailey Martin DEBASS tns_2025iig_2025-05-05.5_ANU-2.3m_WiFeS_DEBASS.dat tns_2025iig_2025-05-05.5_ANU-2.3m_WiFeS_DEBASS.fits Object

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