RA/DEC (2000)
12:23:08.037 +31:03:07.76
185.7834857 +31.0521559
Type
SN Ia
Redshift
0.028246
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-08-14 03:40:20.997
TNS AT
Y
Public
Y
Discovery Mag
18.961
Filter
r-ZTF
Reporter/s
Nabeel Rehemtulla (CIERA, NU), Kaustav Kashyap Das (Caltech), Mansi Kasliwal (Caltech), Theophile Du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025umb - 2025-08-19 00:00:00 Keck1 / LRIS (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

 ▌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
21834 2025-08-19 00:00:00 Keck1 / LRIS 300 Viraj Karambelkar, Kaustav Kashyap Das Viraj Karambelkar, Kaustav Kashyap Das ZTF tns_2025umb_2025-08-19_00-00-00_Keck1_LRIS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2025-08-14 03:40:21 - 2025-08-18 03:29:39 2460901.6530208 - 2460905.6455903 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510148 2025-08-18 03:29:39 2460905.6455903 17.6883 0.098985 ABMag r-ZTF P48_ZTF-Cam
510147 2025-08-14 03:40:21 2460901.6530208 18.961 0.102351 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-07-25 04:58:25 - 2025-07-25 04:58:25 2460881.7072338 - 2460881.7072338 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510146 2025-07-25 04:58:25 2460881.7072338 19.9135 ABMag g-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
266528 2025-08-18 17:00:39 ZTF_CATS150 Nabeel Rehemtulla (CIERA, NU), Kaustav Kashyap Das (Caltech), Mansi Kasliwal (Caltech) et al. ZTF ZTF 12:23:08.037 +31:03:07.76 2025-08-14 03:40:20.997 18.961 r-ZTF PSN ZTF25abjmidx ZTF 2025TNSTR3263....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21834 2025-08-21 17:12:09 ZTF_Bot1 K. Das, A. Mehla, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN Ia 0.028246 1 ZTF 2025TNSCR3311....1D
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
21834 2025-08-19 00:00:00 Keck1 / LRIS 300 Viraj Karambelkar, Kaustav Kashyap Das Viraj Karambelkar, Kaustav Kashyap Das ZTF tns_2025umb_2025-08-19_00-00-00_Keck1_LRIS_ZTF.ascii Object

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