RA/DEC (2000)
16:54:45.604 +75:30:33.35
253.6900177 +75.5092632
Type
SN Ia
Redshift
0.08
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-03-01 13:20:40.128
TNS AT
Y
Public
Y
Discovery Mag
19.241
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

Spectra

 SN_2025dcb - 2025-03-24 08:08:21 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

 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
20644 2025-03-24 08:08:21 P60 / SEDM 2700 SEDmRobot ZTF tns_2025dcb_2025-03-24_08-08-20.557349_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-ZTF P48_ZTF-Cam 2025-02-24 11:12:20 - 2025-03-09 10:07:15 2460730.9668981 - 2460743.9217014 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
474234 2025-03-09 10:07:15 2460743.9217014 18.459 0.129675 ABMag g-ZTF P48_ZTF-Cam
474233 2025-02-26 09:24:12 2460732.8918056 19.9132 0.155891 ABMag g-ZTF P48_ZTF-Cam
474232 2025-02-24 11:12:20 2460730.9668981 20.2071 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-02-25 14:45:01 - 2025-03-01 13:20:40 2460732.11459 - 2460736.05602 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
472972 2025-03-01 13:20:40 2460736.05602 19.241 0.196 19.46 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
472971 2025-02-25 14:45:01 2460732.11459 19.23 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
247189 2025-03-09 10:38:53 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 16:54:45.604 +75:30:33.35 2025-02-26 09:24:12.003 19.9132 g-ZTF PSN ZTF25aahtica ZTF N
246442 2025-03-01 17:30:18 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 16:54:45.557 +75:30:33.49 2025-03-01 13:20:40.128 19.241 orange-ATLAS PSN ATLAS25cgp ATLAS 2025TNSTR.844....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20644 2025-03-26 14:58:07 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.08 1 ZTF 2025TNSCR1163....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
20644 2025-03-24 08:08:21 P60 / SEDM 2700 SEDmRobot ZTF tns_2025dcb_2025-03-24_08-08-20.557349_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 247189 of Group ZTF
Previous RA, DEC: 16:54:45.557, +75:30:33.49 (253.689822, +75.509304)
Updated RA, DEC: 16:54:45.604, +75:30:33.35 (253.6900177, 75.5092632)