RA/DEC (2000)
21:23:11.629 -19:09:45.39
320.7984544 -19.1626094
Type
SN Ia
Redshift
0.045
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-04-26 17:55:45.120
TNS AT
Y
Public
Y
Discovery Mag
18.5
Filter
L-GOTO
Reporter/s
G. Ramsay, D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026kwu - 2026-05-26 09:23:26 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

 ▌GOTO-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌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
23843 2026-05-26 09:23:26 P60 / SEDM 2700 SEDmRobot ZTF tns_2026kwu_2026-05-26_09-23-25.793161_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-04-16 18:57:01 - 2026-04-16 18:57:01 2461147.28959 - 2461147.28959 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578279 2026-04-16 18:57:01 2461147.28959 20.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-04-26 17:55:45 - 2026-04-26 17:55:45 2461157.247048 - 2461157.247048 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578280 2026-04-26 17:55:45 2461157.247048 18.5 0.06 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-04-26 09:30:24 - 2026-04-26 09:30:24 2461156.89611 - 2461156.89611 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578703 2026-04-26 09:30:24 2461156.89611 18.634 0.162 18.99 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
i-ZTF P48_ZTF-Cam 2026-05-02 11:35:06 - 2026-05-02 11:35:06 2461162.9827083 - 2461162.9827083 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
579264 2026-05-02 11:35:06 2461162.9827083 17.7114 0.0892071 ABMag i-ZTF P48_ZTF-Cam
r-ZTF P48_ZTF-Cam 2026-04-24 11:45:41 - 2026-04-24 11:45:41 2461154.9900579 - 2461154.9900579 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
579263 2026-04-24 11:45:41 2461154.9900579 19.5539 0.156776 ABMag r-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-25 14:16:49 - 2026-04-25 14:16:49 2461156.09501 - 2461156.09501 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578702 2026-04-25 14:16:49 2461156.09501 18.97 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
302151 2026-05-02 15:03:11 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 21:23:11.629 -19:09:45.39 2026-04-24 11:45:41.002 19.5539 r-ZTF PSN ZTF26aaueaor ZTF N
301880 2026-04-28 14:48:13 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 21:23:11.620 -19:09:45.61 2026-04-26 09:30:23.904 18.634 orange-ATLAS PSN ATLAS26exv ATLAS N
301651 2026-04-27 12:06:00 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 21:23:11.639 -19:09:45.62 2026-04-26 17:55:45.120 18.5 L-GOTO Other GOTO26eae GOTO 2026TNSTR1842....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23839 2026-05-26 18:26:38 ZTF_Bot1 J. Sollerman, K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), and M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration ZTF SN Ia 0.045 1 ZTF 2026TNSCR2297....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
23843 2026-05-26 09:23:26 P60 / SEDM 2700 SEDmRobot ZTF tns_2026kwu_2026-05-26_09-23-25.793161_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sat, 05/02/2026 - 15:03

Object coordinates updated

Object coordinates updated according to AT-report 302151 of Group ZTF
Previous RA, DEC: 21:23:11.620, -19:09:45.61 (320.7984175, -19.1626708333)
Updated RA, DEC: 21:23:11.629, -19:09:45.39 (320.7984544, -19.1626094)

TNS
System

Tue, 04/28/2026 - 14:48

Object coordinates updated

Object coordinates updated according to AT-report 301880 of Group ATLAS
Previous RA, DEC: 21:23:11.639, -19:09:45.62 (320.798494, -19.162671)
Updated RA, DEC: 21:23:11.620, -19:09:45.61 (320.7984175, -19.1626708333)