RA/DEC (2000)
01:35:25.628 -05:40:43.22
23.85678129451 -5.6786735227581
Type
SN Ia
Redshift
0.049387
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-12-13 08:14:21.120
TNS AT
Y
Public
Y
Discovery Mag
18.212
Filter
cyan-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), 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, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025agsf - 2025-12-16 05:21:34 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

 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_cyan
   
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
22626 2025-12-16 05:21:34 P60 / SEDM 2700 SEDmRobot ZTF tns_2025agsf_2025-12-16_05-21-33.654532_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-STH_ATLAS-03 2025-12-08 20:43:20 - 2025-12-08 20:43:20 2461018.36343 - 2461018.36343 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538478 2025-12-08 20:43:20 2461018.36343 19.38 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-12-08 04:33:11 - 2025-12-14 04:26:30 2461017.6897106 - 2461023.6850694 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538903 2025-12-14 04:26:30 2461023.6850694 18.159 0.0699425 20.3373 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
538900 2025-12-08 04:33:11 2461017.6897106 20.0961 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-12-12 03:26:38 - 2025-12-14 03:25:42 2461021.6434954 - 2461023.6428472 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538902 2025-12-14 03:25:42 2461023.6428472 18.0872 0.0776388 19.4058 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
538901 2025-12-12 03:26:38 2461021.6434954 18.5721 0.0815393 20.469 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
cyan-ATLAS ATLAS-MLO_ATLAS-01 2025-12-13 08:14:21 - 2025-12-13 08:14:21 2461022.8433 - 2461022.8433 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538479 2025-12-13 08:14:21 2461022.8433 18.212 0.066 19.6 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
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
280617 2025-12-14 21:21:00 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 01:35:25.628 -05:40:43.22 2025-12-12 03:26:38.003 18.5721 g-ZTF PSN SDSS J013525.64-054043.6 ZTF18abquopi ZTF Early SN candidate (g-rise > 0.45+-0.02 mag/day, r-rise > 0.32+-0.01 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/ZTF18abquopi N
280402 2025-12-13 15:51:42 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 01:35:25.585 -05:40:42.64 2025-12-13 08:14:21.120 18.212 cyan-ATLAS PSN ATLAS25ppl ATLAS 2025TNSTR4949....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
22625 2025-12-18 00:22:09 ZTF_Bot1 D. Perley, J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.049387 1 ZTF 2025TNSCR5051....1P
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
22626 2025-12-16 05:21:34 P60 / SEDM 2700 SEDmRobot ZTF tns_2025agsf_2025-12-16_05-21-33.654532_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 12/14/2025 - 21:21

Object coordinates updated

Object coordinates updated according to AT-report 280617 of Group ZTF
Previous RA, DEC: 01:35:25.585, -05:40:42.64 (23.8566057143, -5.67851)
Updated RA, DEC: 01:35:25.628, -05:40:43.22 (23.85678129451, -5.6786735227581)