RA/DEC (2000)
00:48:46.429 +06:18:35.55
12.1934545229 +6.30987367979
Type
SN Ia
Redshift
0.054
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-10-11 00:09:39.744
TNS AT
Y
Public
Y
Discovery Mag
18.2
Filter
wide-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), 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 (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (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_2025zto - 2025-10-12 00:00:00 NOT / ALFOSC (None)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-TDO_ATLAS-05_wide
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌PS1_GPC1_w
   
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
22201 2025-10-12 00:00:00 NOT / ALFOSC 1800 Roar Holmberg Niko Pyykkinen None tns_2025zto_2025-12-10_NOT_ALFOSC_None.dat tns_2025zto_2025-12-10_NOT_ALFOSC_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-10-11 00:09:40 - 2025-10-11 00:09:40 2460959.50671 - 2460959.50671 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522787 2025-10-11 00:09:40 2460959.50671 18.2 0.071 19.57 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-10-09 23:15:20 - 2025-10-09 23:15:20 2460958.46898 - 2460958.46898 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522786 2025-10-09 23:15:20 2460958.46898 18.16 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-10-05 02:24:23 - 2025-10-18 23:40:30 2460953.600268 - 2460967.486462 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524866 2025-10-18 23:40:30 2460967.486462 16.81 0.02 ABMag L-GOTO GOTO-N_GOTO-1 180
524865 2025-10-05 02:24:23 2460953.600268 18.6 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
w-P1 PS1_GPC1 2025-10-25 07:38:03 - 2025-10-25 07:38:03 2460973.81809 - 2460973.81809 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546919 2025-10-25 07:38:03 2460973.81809 16.95 0.01 22 ABMag w-P1 PS1_GPC1 45 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
285594 2026-01-01 23:24:02 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 00:48:46.429 +06:18:35.55 2025-10-25 07:38:02.976 16.95 w-P1 PSN PS25mne Pan-STARRS N
273904 2025-10-19 10:41:38 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 00:48:46.436 +06:18:35.68 2025-10-18 23:40:30.144 16.81 L-GOTO Other GOTO25iqz GOTO N
272744 2025-10-11 16:35:15 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 00:48:46.413 +06:18:35.71 2025-10-11 00:09:39.744 18.2 wide-ATLAS PSN ATLAS25mob ATLAS 2025TNSTR4067....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
22201 2025-10-13 13:22:37 Niko Pyykkinen Niko Pyykkinen (NOT/UTU), Roar Holmberg (NOT/Aarhus) None SN Ia 0.054 1 1 Redshift from presumed host (WISEA J004847.20+061849.2), though the separation to this host is quite large. Redshift suggested by SNID is 0.04 2025TNSCR4107....1P
Related files
File Comments Last Modified (UT) Modified By
tns_2025zto_atrep_22201.png 2025-10-13 13:22:37 Niko Pyykkinen
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
22201 2025-10-12 00:00:00 NOT / ALFOSC 1800 Roar Holmberg Niko Pyykkinen None tns_2025zto_2025-12-10_NOT_ALFOSC_None.dat tns_2025zto_2025-12-10_NOT_ALFOSC_None.fits Object

Comments

TNS
System

Thu, 01/01/2026 - 23:24

Object coordinates updated

Object coordinates updated according to AT-report 285594 of Group Pan-STARRS
Previous RA, DEC: 00:48:46.413, +06:18:35.71 (12.1933892308, +6.30992)
Updated RA, DEC: 00:48:46.429, +06:18:35.55 (12.1934545229, +6.30987367979)