RA/DEC (2000)
14:21:39.897 +13:13:46.36
215.4162383 +13.2295434523
Type
SN Ia
Redshift
0.016738
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-04-12 00:35:02.976
TNS AT
Y
Public
Y
Discovery Mag
19.02
Filter
L-GOTO
Reporter/s
J. Lyman, M. Pursiainen, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, T. Killestein, A. Kumar, D. O'Neill, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026jlm - 2026-04-15 10:11:59 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-N_GOTO-2_L
 ▌PS2_GPC2_i
 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_i
 ▌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
23466 2026-04-15 10:11:59 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026jlm_2026-04-15_10-11-59.401547_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2026-04-08 00:38:01 - 2026-04-08 00:38:01 2461138.526396 - 2461138.526396 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574918 2026-04-08 00:38:01 2461138.526396 19.9 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2026-04-21 09:42:59 - 2026-04-21 09:42:59 2461151.90485 - 2461151.90485 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576840 2026-04-21 09:42:59 2461151.90485 15.97 0.02 20.7 ABMag i-P1 PS2_GPC2 27 Robot
w-P1 PS2_GPC2 2026-04-15 09:31:24 - 2026-04-15 09:31:24 2461145.89681 - 2461145.89681 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
575699 2026-04-15 09:31:24 2461145.89681 17.03 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-04-13 07:15:42 - 2026-04-13 07:15:42 2461143.80257 - 2461143.80257 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
575203 2026-04-13 07:15:42 2461143.80257 15.42 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2026-04-14 00:15:49 - 2026-04-14 00:15:49 2461144.51098 - 2461144.51098 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
575204 2026-04-14 00:15:49 2461144.51098 17.494 0.036 19.64 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2026-04-12 00:35:03 - 2026-04-12 00:35:03 2461142.524335 - 2461142.524335 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574919 2026-04-12 00:35:03 2461142.524335 19.02 0.08 ABMag L-GOTO GOTO-N_GOTO-1 180
i-ZTF P48_ZTF-Cam 2026-04-15 09:12:05 - 2026-04-15 09:12:05 2461145.8833912 - 2461145.8833912 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
575353 2026-04-15 09:12:05 2461145.8833912 17.5506 0.0464715 ABMag i-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-04-10 09:37:50 - 2026-04-15 08:40:07 2461140.9012731 - 2461145.8611921 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
575352 2026-04-15 08:40:07 2461145.8611921 16.9992 0.039248 ABMag g-ZTF P48_ZTF-Cam
578380 2026-04-15 08:40:07 2461145.8611921 16.9992 0.039248 20.4731 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
575351 2026-04-10 09:37:50 2461140.9012731 20.9163 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
578379 2026-04-10 09:37:50 2461140.9012731 20.6826 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
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
301702 2026-04-27 13:41:35 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 14:21:39.907 +13:13:46.40 2026-04-15 08:40:06.997 16.9992 g-ZTF PSN ZTF26aasmsqg ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aasmsqg N
300920 2026-04-22 01:31:23 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 14:21:39.897 +13:13:46.36 2026-04-21 09:42:59.040 15.97 i-P1 PSN PS26bak Pan-STARRS N
300344 2026-04-16 07:25:28 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 14:21:39.892 +13:13:46.45 2026-04-15 09:31:24.384 17.03 w-P1 PSN PS26bak Pan-STARRS N
300176 2026-04-15 09:25:03 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 14:21:39.907 +13:13:46.45 2026-04-15 08:40:06.997 16.9992 g-ZTF PSN ZTF26aasmsqg ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
300104 2026-04-14 05:48:12 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 14:21:39.911 +13:13:46.36 2026-04-14 00:15:48.672 17.494 cyan-ATLAS PSN ATLAS26eee ATLAS N
299957 2026-04-13 11:51:48 GOTO_bot J. Lyman, M. Pursiainen, K. Ackley et al. GOTO GOTO 14:21:39.888 +13:13:46.45 2026-04-12 00:35:02.976 19.02 L-GOTO PSN GOTO26dgu GOTO 2026TNSTR1566....1L N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23464 2026-04-15 11:03:53 ZTF_Bot1 C. Fremling and J. Purdum on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.016738 1 ZTF 2026TNSCR1641....1F
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
23466 2026-04-15 10:11:59 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026jlm_2026-04-15_10-11-59.401547_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Wed, 04/22/2026 - 01:31

Object coordinates updated

Object coordinates updated according to AT-report 300920 of Group Pan-STARRS
Previous RA, DEC: 14:21:39.892, +13:13:46.45 (215.41621623, +13.229569499)
Updated RA, DEC: 14:21:39.897, +13:13:46.36 (215.4162383, +13.2295434523)

TNS
System

Thu, 04/16/2026 - 07:25

Object coordinates updated

Object coordinates updated according to AT-report 300344 of Group Pan-STARRS
Previous RA, DEC: 14:21:39.907, +13:13:46.45 (215.4162808, +13.2295708)
Updated RA, DEC: 14:21:39.892, +13:13:46.45 (215.41621623, +13.229569499)

TNS
System

Wed, 04/15/2026 - 09:25

Object coordinates updated

Object coordinates updated according to AT-report 300176 of Group ZTF
Previous RA, DEC: 14:21:39.911, +13:13:46.36 (215.416295263, +13.2295442105)
Updated RA, DEC: 14:21:39.907, +13:13:46.45 (215.4162808, +13.2295708)

TNS
System

Tue, 04/14/2026 - 05:48

Object coordinates updated

Object coordinates updated according to AT-report 300104 of Group ATLAS
Previous RA, DEC: 14:21:39.888, +13:13:46.45 (215.416202, +13.22957)
Updated RA, DEC: 14:21:39.911, +13:13:46.36 (215.416295263, +13.2295442105)