RA/DEC (2000)
10:44:38.321 +03:51:05.75
161.15966876 +3.85159813115
Type
SN Ia
Redshift
0.07229
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-03-21 07:27:51.998
TNS AT
Y
Public
Y
Discovery Mag
20.3482
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026hbk - 2026-04-23 06:02:54 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

 ▌WFST_WFST-WFC_g
 ▌GOTO-S_GOTO-3_L
 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_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
23543 2026-04-23 06:02:54 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026hbk_2026-04-23_06-02-54.272311_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-WFST WFST_WFST-WFC 2026-03-18 14:48:29 - 2026-03-19 13:22:05 2461118.117 - 2461119.057 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
570896 2026-03-19 13:22:05 2461119.057 21.16 0.12 ABMag g-WFST WFST_WFST-WFC 90
570895 2026-03-18 14:48:29 2461118.117 21.82 ABMag g-WFST WFST_WFST-WFC 90 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-03-20 11:51:59 - 2026-03-22 11:45:39 2461119.994425 - 2461121.990042 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
570193 2026-03-22 11:45:39 2461121.990042 19.9 0.14 ABMag L-GOTO GOTO-S_GOTO-3 180
570192 2026-03-20 11:51:59 2461119.994425 20.4 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
w-P1 PS2_GPC2 2026-04-07 07:45:53 - 2026-04-07 07:45:53 2461137.82353 - 2461137.82353 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574542 2026-04-07 07:45:53 2461137.82353 18.44 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-03-26 03:23:42 - 2026-03-26 03:33:36 2461125.64146 - 2461125.64833 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
570259 2026-03-26 03:33:36 2461125.64833 18.944 0.15 19.37 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
570257 2026-03-26 03:23:42 2461125.64146 19.165 0.188 19.31 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
i-ZTF P48_ZTF-Cam 2026-03-21 06:46:54 - 2026-03-21 06:46:54 2461120.7825694 - 2461120.7825694 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569611 2026-03-21 06:46:54 2461120.7825694 18.1431 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
r-ZTF P48_ZTF-Cam 2026-03-21 07:27:52 - 2026-03-21 07:27:52 2461120.8110185 - 2461120.8110185 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569612 2026-03-21 07:27:52 2461120.8110185 20.3482 0.126152 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-03-20 06:39:04 - 2026-03-24 08:58:36 2461119.7771296 - 2461123.8740278 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569613 2026-03-24 08:58:36 2461123.8740278 19.3391 0.130278 ABMag g-ZTF P48_ZTF-Cam
571920 2026-03-21 08:26:51 2461120.8519792 20.6179 0.262271 20.406 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
571919 2026-03-20 06:39:04 2461119.7771296 20.3579 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-03-25 10:20:43 - 2026-03-25 10:20:43 2461124.93105 - 2461124.93105 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
570256 2026-03-25 10:20:43 2461124.93105 19.4 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
570258 2026-03-25 10:20:43 2461124.93105 19.4 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
299724 2026-04-11 11:37:28 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 10:44:38.321 +03:51:05.75 2026-04-07 07:45:52.992 18.44 w-P1 PSN PS26axz Pan-STARRS N
298317 2026-04-02 18:44:26 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 10:44:38.328 +03:51:05.84 2026-03-21 08:26:51.003 20.6179 g-ZTF PSN ZTF26aaoszlt ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aaoszlt N
297724 2026-03-29 12:09:59 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 10:44:38.320 +03:51:05.75 2026-03-19 13:22:04.800 21.16 g-WFST PSN WFST260319zhu WFST N
297435 2026-03-26 12:53:01 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 10:44:38.296 +03:51:05.41 2026-03-26 03:33:35.712 18.944 orange-ATLAS PSN ATLAS26dia ATLAS N
297434 2026-03-26 12:52:24 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 10:44:38.310 +03:51:05.35 2026-03-26 03:23:42.144 19.165 orange-ATLAS PSN ATLAS26dia ATLAS N
297406 2026-03-26 07:06:09 GOTO_bot M. Kennedy, G. Ramsay, K. Ackley et al. GOTO GOTO 10:44:38.358 +03:51:05.69 2026-03-22 11:45:39.456 19.9 L-GOTO Other GOTO26cle GOTO N
297131 2026-03-24 09:50:21 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 10:44:38.303 +03:51:05.63 2026-03-21 07:27:51.998 20.3482 r-ZTF PSN ZTF26aaoszlt ZTF 2026TNSTR1267....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23540 2026-04-23 15:28:41 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 0.07229 1 ZTF 2026TNSCR1794....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
23543 2026-04-23 06:02:54 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026hbk_2026-04-23_06-02-54.272311_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sat, 04/11/2026 - 11:37

Object coordinates updated

Object coordinates updated according to AT-report 299724 of Group Pan-STARRS
Previous RA, DEC: 10:44:38.328, +03:51:05.84 (161.15969942143, +3.8516227428571)
Updated RA, DEC: 10:44:38.321, +03:51:05.75 (161.15966876, +3.85159813115)

TNS
System

Thu, 04/02/2026 - 18:44

Object coordinates updated

Object coordinates updated according to AT-report 298317 of Group ZTF
Previous RA, DEC: 10:44:38.303, +03:51:05.63 (161.1595969, +3.8515652)
Updated RA, DEC: 10:44:38.328, +03:51:05.84 (161.15969942143, +3.8516227428571)