RA/DEC (2000)
11:52:40.141 -07:39:30.44
178.167255099 -7.65845428094
Type
SN Ia
Redshift
0.0793
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-01-24 15:26:12.480
TNS AT
Y
Public
Y
Discovery Mag
20.27
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, 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, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026bjn - 2026-02-09 07:36:33 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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-S_GOTO-3_L
 ▌P48_ZTF-Cam_r
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_w
   
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
22949 2026-02-09 07:36:33 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026bjn_2026-02-09_07-36-32.930202_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-01-28 04:13:22 - 2026-01-28 04:13:22 2461068.67595 - 2461068.67595 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
555046 2026-01-28 04:13:22 2461068.67595 19.24 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-01-21 16:35:02 - 2026-01-24 15:26:12 2461062.190999 - 2461065.143204 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
553876 2026-01-24 15:26:12 2461065.143204 20.27 0.19 ABMag L-GOTO GOTO-S_GOTO-3 180
553875 2026-01-21 16:35:02 2461062.190999 20.3 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-01-25 08:34:46 - 2026-01-25 08:35:27 2461065.8574769 - 2461065.8579514 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
553900 2026-01-25 08:35:27 2461065.8579514 19.8872 0.187112 19.9152 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
555493 2026-01-25 08:35:27 2461065.8579514 19.8872 0.187112 19.9152 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
553899 2026-01-25 08:34:46 2461065.8574769 19.7869 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
555492 2026-01-25 08:34:46 2461065.8574769 19.7869 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-01-30 12:11:48 - 2026-01-30 12:11:48 2461071.00819 - 2461071.00819 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
555047 2026-01-30 12:11:48 2461071.00819 18.712 0.173 18.99 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
w-P1 PS1_GPC1 2026-02-13 11:31:18 - 2026-02-13 11:31:18 2461084.98007 - 2461084.98007 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
560966 2026-02-13 11:31:18 2461084.98007 18.48 0.03 22 ABMag w-P1 PS1_GPC1 45 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
292649 2026-02-24 01:32:10 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 11:52:40.141 -07:39:30.44 2026-02-13 11:31:18.048 18.48 w-P1 PSN PS26ajs Pan-STARRS N
289805 2026-02-02 19:45:32 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 11:52:40.161 -07:39:30.43 2026-01-25 08:35:27.001 19.8872 r-ZTF PSN ZTF26aadrqcj ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aadrqcj N
289567 2026-01-31 09:24:12 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:52:40.152 -07:39:30.54 2026-01-30 12:11:47.616 18.712 orange-ATLAS PSN ATLAS26bha ATLAS N
288966 2026-01-25 22:23:53 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 11:52:40.166 -07:39:30.41 2026-01-25 08:35:27.001 19.8872 r-ZTF PSN WISEA J115239.99-073924.4 ZTF26aadrqcj ZTF Early SN candidate (r-rise > 0.09+-0.04 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aadrqcj N
288957 2026-01-25 21:44:48 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 11:52:40.176 -07:39:30.63 2026-01-24 15:26:12.480 20.27 L-GOTO Other GOTO26yj GOTO 2026TNSTR.326....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
22948 2026-02-09 09:07:56 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.0793 1 ZTF 2026TNSCR.567....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
22949 2026-02-09 07:36:33 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026bjn_2026-02-09_07-36-32.930202_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 02/24/2026 - 01:32

Object coordinates updated

Object coordinates updated according to AT-report 292649 of Group Pan-STARRS
Previous RA, DEC: 11:52:40.161, -07:39:30.43 (178.1673392, -7.65845312)
Updated RA, DEC: 11:52:40.141, -07:39:30.44 (178.167255099, -7.65845428094)

TNS
System

Mon, 02/02/2026 - 19:45

Object coordinates updated

Object coordinates updated according to AT-report 289805 of Group ZTF
Previous RA, DEC: 11:52:40.166, -07:39:30.41 (178.1673593, -7.6584475)
Updated RA, DEC: 11:52:40.161, -07:39:30.43 (178.1673392, -7.65845312)

TNS
System

Sat, 01/31/2026 - 09:24

Object coordinates updated

Object coordinates updated according to AT-report 288966 of Group ZTF
Previous RA, DEC: 11:52:40.166, -07:39:30.41 (178.1673593, -7.6584475)
Updated RA, DEC: 11:52:40.166, -07:39:30.41 (178.1673593, -7.6584475)

TNS
System

Sun, 01/25/2026 - 22:23

Object coordinates updated

Object coordinates updated according to AT-report 288966 of Group ZTF
Previous RA, DEC: 11:52:40.176, -07:39:30.63 (178.167402, -7.658509)
Updated RA, DEC: 11:52:40.166, -07:39:30.41 (178.1673593, -7.6584475)