RA/DEC (2000)
16:07:10.526 -26:25:30.02
241.7938594 -26.4250045
Type
SN Ia-91bg-like
Redshift
0.07
Discovery ReportClassification Report
Related AstroNotes: 2025-151
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-04-29 09:25:13.995
TNS AT
Y
Public
Y
Discovery Mag
19.9758
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025iwh - 2025-05-21 08:22:31 ESO-NTT / EFOSC2-NTT (ePESSTO+)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
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_r
   
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
21091 2025-05-21 08:22:31 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025iwh_2025-05-21_08-22-31_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025iwh_2025-05-21_08-22-31_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-05-06 16:51:09 - 2025-05-06 16:51:09 2460802.202189 - 2460802.202189 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488142 2025-05-06 16:51:09 2460802.202189 19.22 0.15 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-N_GOTO-2 2025-04-27 02:11:42 - 2025-04-27 02:11:42 2460792.591464 - 2460792.591464 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488141 2025-04-27 02:11:42 2460792.591464 19.4 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-05-02 07:56:48 - 2025-05-03 04:36:38 2460797.83111 - 2460798.69211 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486473 2025-05-03 04:36:38 2460798.69211 18.841 0.169 19.14 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
486472 2025-05-02 07:56:48 2460797.83111 18.21 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-04-24 09:48:02 - 2025-04-30 09:52:56 2460789.9083565 - 2460795.9117593 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
485196 2025-04-30 09:52:56 2460795.9117593 19.7634 0.205223 ABMag r-ZTF P48_ZTF-Cam
485195 2025-04-29 09:25:14 2460794.8925231 19.9758 0.223212 ABMag r-ZTF P48_ZTF-Cam
485194 2025-04-24 09:48:02 2460789.9083565 20.0655 ABMag r-ZTF P48_ZTF-Cam [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
254976 2025-05-14 13:16:23 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 16:07:10.552 -26:25:29.92 2025-05-06 16:51:09.216 19.22 L-GOTO Other GOTO25clj GOTO N
253863 2025-05-03 17:28:04 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:07:10.501 -26:25:29.12 2025-05-03 04:36:38.304 18.841 orange-ATLAS PSN ATLAS25eon ATLAS N
253215 2025-04-30 20:59:24 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 16:07:10.526 -26:25:30.02 2025-04-29 09:25:13.995 19.9758 r-ZTF PSN ZTF25aaoxxlf ZTF 2025TNSTR1604....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
21091 2025-05-21 15:59:47 ePESSTOplus_Bot1 Callum Francis Aster, Stefano Pio Cosentino, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia-91bg-like 0.07 1 Add ePESSTO+ 2025TNSCR1879....1A
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
21091 2025-05-21 08:22:31 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025iwh_2025-05-21_08-22-31_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025iwh_2025-05-21_08-22-31_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

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