RA/DEC (2000)
09:41:36.239 -11:27:28.58
145.4009962875 -11.4579388625
Type
SLSN-I
Redshift
0.145
Discovery ReportClassification Report
Related AstroNotes: 2025-149, 2025-159
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-04-21 03:45:59.996
TNS AT
Y
Public
Y
Discovery Mag
19.4991
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025idz - 2025-06-01 04:31:48 Lick-3m / KAST (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
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
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
21222 2025-06-01 04:31:48 Lick-3m / KAST R. Michael Rich, Patrick King Jacob Wise ZTF tns_2025idz_2025-06-01_04-31-47.85_Lick-3m_KAST_ZTF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-04-11 11:06:00 - 2025-05-08 10:41:29 2460776.962504 - 2460803.945471 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487527 2025-05-08 10:41:29 2460803.945471 17.88 0.09 ABMag L-GOTO GOTO-S_GOTO-4 180
487526 2025-04-11 11:06:00 2460776.962504 18.9 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-21 03:31:01 - 2025-04-25 02:23:14 2460786.64654 - 2460790.59947 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484180 2025-04-25 02:23:14 2460790.59947 18.8 0.265 19.16 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
484179 2025-04-21 03:31:01 2460786.64654 19.12 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-04-16 05:39:57 - 2025-04-16 05:39:57 2460781.7360764 - 2460781.7360764 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
483720 2025-04-16 05:39:57 2460781.7360764 19.9527 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-04-16 04:10:14 - 2025-04-23 06:53:47 2460781.6737731 - 2460788.7873495 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
483722 2025-04-23 06:53:47 2460788.7873495 18.8739 0.101172 ABMag g-ZTF P48_ZTF-Cam
483721 2025-04-21 03:46:00 2460786.6569444 19.4991 0.157355 ABMag g-ZTF P48_ZTF-Cam
487610 2025-04-21 03:46:00 2460786.6569444 19.4991 0.157355 20.0824 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
487609 2025-04-16 04:10:14 2460781.6737731 20.3809 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
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
254649 2025-05-09 18:14:47 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 09:41:36.239 -11:27:28.58 2025-04-21 03:45:59.996 19.4991 g-ZTF PSN ZTF25aanikpq ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aanikpq N
254617 2025-05-09 06:54:01 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 09:41:36.219 -11:27:28.39 2025-05-08 10:41:28.608 17.88 L-GOTO Other GOTO25cjw GOTO N
252638 2025-04-25 08:58:36 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 09:41:36.220 -11:27:28.81 2025-04-25 02:23:14.208 18.8 orange-ATLAS PSN ATLAS25efm ATLAS N
252425 2025-04-23 09:40:44 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 09:41:36.233 -11:27:28.61 2025-04-21 03:45:59.996 19.4991 g-ZTF PSN ZTF25aanikpq ZTF 2025TNSTR1507....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21222 2025-06-04 21:13:09 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), Patrick King (UCLA), R. Michael Rich (UCLA) ZTF SLSN-I 0.145 1 1Add ZTF Spectrum is well-fit to template spectra from previously classified SLSN-I at a redshift of z = 0.145 ± 0.004. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022). 2025TNSCR2101....1W
Related files
File Comments Last Modified (UT) Modified By
tns_2025idz_atrep_21222_ZTF.pdf NGSF fits 2025-06-04 21:13:09 Jacob Wise
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
21222 2025-06-01 04:31:48 Lick-3m / KAST R. Michael Rich, Patrick King Jacob Wise ZTF tns_2025idz_2025-06-01_04-31-47.85_Lick-3m_KAST_ZTF.txt Object

Comments

TNS
System

Fri, 05/09/2025 - 18:14

Object coordinates updated

Object coordinates updated according to AT-report 254649 of Group ZTF
Previous RA, DEC: 09:41:36.233, -11:27:28.61 (145.4009714, -11.4579483)
Updated RA, DEC: 09:41:36.239, -11:27:28.58 (145.4009962875, -11.4579388625)