RA/DEC (2000)
19:55:52.089 -07:23:43.71
298.967035556 -7.39547555556
Type
SN Ia
Redshift
0.024
Discovery ReportClassification Report
Reporting Group
LAST
Discovering Data Source
LAST
Discovery Date
2025-09-10 17:49:06.816
TNS AT
Y
Public
Y
Discovery Mag
18.71
Filter
Clear-
Reporter/s
E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS), S. Garrappa (WIS), S. Ben-Ami (WIS), D. Polishook (WIS), O. Yaron (WIS), P. Chen (WIS), A. Krassilchtchikov (WIS), Y. M. Shani (WIS), E. Segre (WIS), A. Gal-Yam (WIS), S. Spitzer (WIS), and K. Rybicki (WIS) on behalf of the LAST Collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025xet - 2025-09-13 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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌LAST_LAST-Cam_Clear
 ▌GOTO-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-STH_ATLAS-03_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
22012 2025-09-13 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025xet_2025-09-13_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-09-10 21:42:06 - 2025-09-10 21:42:06 2460929.40424 - 2460929.40424 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516479 2025-09-10 21:42:06 2460929.40424 18.11 0.08 19.16 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
Clear- LAST_LAST-Cam 2025-08-26 18:48:41 - 2025-09-10 17:49:07 2460914.28381 - 2460929.24244 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516327 2025-09-10 17:49:07 2460929.24244 18.71 ABMag Clear- LAST_LAST-Cam 400
516326 2025-08-26 18:48:41 2460914.28381 20.07 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
L-GOTO GOTO-S_GOTO-4 2025-09-03 11:07:22 - 2025-09-03 11:07:22 2460921.963455 - 2460921.963455 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522174 2025-09-03 11:07:22 2460921.963455 18.4 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-10-03 20:20:44 - 2025-10-03 20:20:44 2460952.347735 - 2460952.347735 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522175 2025-10-03 20:20:44 2460952.347735 17.91 0.08 ABMag L-GOTO GOTO-N_GOTO-2 180
orange-ATLAS ATLAS-STH_ATLAS-03 2025-09-09 22:18:38 - 2025-09-09 22:18:38 2460928.42961 - 2460928.42961 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516478 2025-09-09 22:18:38 2460928.42961 18.2 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 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
272457 2025-10-03 20:49:06 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 19:55:52.061 -07:23:43.55 2025-10-03 20:20:43.872 17.91 L-GOTO Other GOTO25ify GOTO N
269718 2025-09-11 13:23:07 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 19:55:52.089 -07:23:43.71 2025-09-10 21:42:06.336 18.11 wide-ATLAS PSN ATLAS25led ATLAS N
269634 2025-09-10 20:15:48 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 19:55:52.058 -07:23:42.92 2025-09-10 17:49:06.816 18.71 Clear- PSN LAST 2025TNSTR3639....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22012 2025-09-13 07:23:16 Willem Hoogendam Willem Hoogendam (IfA/Hawaii), on behalf of SCAT SCAT SN Ia 0.024 1 SCAT SN Ia with Si II features and no H. SNID best matches to a normal SN Ia near maximum light at z~0.024. 2025TNSCR3684....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
22012 2025-09-13 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025xet_2025-09-13_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Thu, 09/11/2025 - 13:23

Object coordinates updated

Object coordinates updated according to AT-report 269718 of Group ATLAS
Previous RA, DEC: 19:55:52.058, -07:23:42.92 (298.96690886651, -7.3952551756532)
Updated RA, DEC: 19:55:52.089, -07:23:43.71 (298.967035556, -7.39547555556)