RA/DEC (2000)
16:33:58.829 -02:31:58.57
248.495119721 -2.53293662126
Type
SN Ia
Redshift
0.069
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-06-14 09:54:46.656
TNS AT
Y
Public
Y
Discovery Mag
18.82
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, 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_2025nnm - 2025-06-18 00:00:00 UH88 / SNIFS (SCAT)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-3_L
 ▌PS2_GPC2_w
 ▌GOTO-N_GOTO-1_L
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
21351 2025-06-18 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025nnm_2025-06-18_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-06-15 11:05:08 - 2025-06-15 11:05:08 2460841.961901 - 2460841.961901 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495618 2025-06-15 11:05:08 2460841.961901 18.9 0.1 ABMag L-GOTO GOTO-S_GOTO-3 180
w-P1 PS2_GPC2 2025-05-30 10:44:48 - 2025-05-30 10:44:48 2460825.94778 - 2460825.94778 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503306 2025-05-30 10:44:48 2460825.94778 20.88 0.13 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-06-14 00:27:23 - 2025-06-14 00:27:23 2460840.519022 - 2460840.519022 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495617 2025-06-14 00:27:23 2460840.519022 18.9 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-06-12 11:10:12 - 2025-06-12 11:10:12 2460838.96542 - 2460838.96542 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495106 2025-06-12 11:10:12 2460838.96542 18.6 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-06-14 09:54:47 - 2025-06-14 09:54:47 2460840.91304 - 2460840.91304 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495107 2025-06-14 09:54:47 2460840.91304 18.82 0.165 19.05 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
262920 2025-07-18 16:44:53 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 16:33:58.829 -02:31:58.57 2025-05-30 10:44:48.192 20.88 w-P1 PSN PS25fes Pan-STARRS N
258789 2025-06-17 05:48:15 GOTO_bot G. Ramsay,K. Ackley,M. Dyer et al. GOTO GOTO 16:33:58.834 -02:31:58.47 2025-06-15 11:05:08.160 18.9 L-GOTO Other GOTO25doc GOTO N
258495 2025-06-14 14:45:09 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:33:58.838 -02:31:58.31 2025-06-14 09:54:46.656 18.82 orange-ATLAS PSN ATLAS25gdb ATLAS 2025TNSTR2213....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
21351 2025-06-18 12:49:02 Willem Hoogendam Willem Hoogendam (IfA/Hawaii), on behalf of the SCAT team SCAT SN Ia 0.069 1 SCAT SN Ia with strong Si II features. SNID matches best to SNe Ia. The initial redshift estimate from SNID is z=0.069. The NED redshift (z=0.051034) is likely for the galaxy ~1" to the north. 2025TNSCR2281....1H
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
21351 2025-06-18 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025nnm_2025-06-18_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Fri, 07/18/2025 - 16:44

Object coordinates updated

Object coordinates updated according to AT-report 262920 of Group Pan-STARRS
Previous RA, DEC: 16:33:58.838, -02:31:58.31 (248.49516, -2.532865)
Updated RA, DEC: 16:33:58.829, -02:31:58.57 (248.495119721, -2.53293662126)