RA/DEC (2000)
17:35:26.594 +02:47:03.79
263.860809199 +2.78438494625
Type
SN II
Redshift
0.036
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-02-25 05:21:10.656
TNS AT
Y
Public
Y
Discovery Mag
19.71
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_2026ern - 2026-03-11 12:02:50 Lick-3m / KAST (UCSC)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
 ▌PS2_GPC2_r
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
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
23181 2026-03-11 12:02:50 Lick-3m / KAST 3000 Jenna Karcheski, Kyle Davis (UCSC) Kyle Davis, Jenna Karcheski (UCSC) UCSC tns_2026ern_2026-03-11_12-02-50.38_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-03-11 06:13:59 - 2026-03-11 06:13:59 2461110.75971 - 2461110.75971 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
565211 2026-03-11 06:13:59 2461110.75971 17.94 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
r-P1 PS2_GPC2 2026-02-28 15:37:26 - 2026-02-28 15:37:26 2461100.151 - 2461100.151 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562420 2026-02-28 15:37:26 2461100.151 19.38 0.18 20.6 ABMag r-P1 PS2_GPC2 27 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2026-03-12 02:54:13 - 2026-03-12 02:54:13 2461111.62098 - 2461111.62098 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
565212 2026-03-12 02:54:13 2461111.62098 18.756 0.192 18.91 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2026-02-24 05:22:29 - 2026-02-25 05:21:11 2461095.723949 - 2461096.723044 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562337 2026-02-25 05:21:11 2461096.723044 19.71 0.19 ABMag L-GOTO GOTO-N_GOTO-1 180
562336 2026-02-24 05:22:29 2461095.723949 19.4 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-02-25 12:15:35 - 2026-02-25 12:15:35 2461097.0108218 - 2461097.0108218 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562969 2026-02-25 12:15:35 2461097.0108218 19.8866 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-02-25 12:47:44 - 2026-03-06 12:41:09 2461097.0331481 - 2461106.0285764 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562971 2026-03-06 12:41:09 2461106.0285764 19.1705 0.140711 ABMag g-ZTF P48_ZTF-Cam
562970 2026-02-25 12:47:44 2461097.0331481 19.7545 0.140221 ABMag g-ZTF P48_ZTF-Cam
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
294700 2026-03-16 13:51:25 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 17:35:26.606 +02:47:04.11 2026-03-12 02:54:12.672 18.756 orange-ATLAS PSN ATLAS26dae ATLAS N
293695 2026-03-06 13:43:25 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 17:35:26.588 +02:47:03.99 2026-02-25 12:47:43.995 19.7545 g-ZTF PSN ZTF26aajqblj ZTF N
293399 2026-03-01 11:38:08 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 17:35:26.594 +02:47:03.79 2026-02-28 15:37:26.400 19.38 r-P1 PSN PS26and Pan-STARRS N
293365 2026-02-28 22:05:08 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 17:35:26.612 +02:47:04.41 2026-02-25 05:21:10.656 19.71 L-GOTO Other GOTO26bok GOTO N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23180 2026-03-11 21:14:22 Kyle Davis Jenna Karcheski, Kyle Davis, Ryan Foley (UCSC) UCSC SN II 0.036 1 UCSC 2026TNSCR1023....1K
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
23181 2026-03-11 12:02:50 Lick-3m / KAST 3000 Jenna Karcheski, Kyle Davis (UCSC) Kyle Davis, Jenna Karcheski (UCSC) UCSC tns_2026ern_2026-03-11_12-02-50.38_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Sun, 03/01/2026 - 11:38

Object coordinates updated

Object coordinates updated according to AT-report 293399 of Group Pan-STARRS
Previous RA, DEC: 17:35:26.612, +02:47:04.41 (263.860884, +2.784558)
Updated RA, DEC: 17:35:26.594, +02:47:03.79 (263.860809199, +2.78438494625)