RA/DEC (2000)
16:07:48.159 +39:11:37.64
241.950661035 +39.1937900502
Type
SN II
Redshift
0.0379
Discovery ReportClassification Report
Reporting Group
YSE
Discovering Data Source
Pan-STARRS
Discovery Date
2026-06-19 08:27:19.584
TNS AT
Y
Public
Y
Discovery Mag
19.04
Filter
g-P1
Reporter/s
D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello, Z. Ansari, N. Arendse, C. Gall, C. Grillo, S. H. Bruun, C. Hede, J. Hjorth, L. Izzo, H. Korhonen, S. Raimundo, D. Kodi Ramanah, A. Sarangi, R. Wojtak, H. Pfister (DARK, U Copenhagen), K. Auchettl (DARK, UC Santa Cruz, U Melbourne), K. C. Chambers, M. E. Huber, E. A. Magnier, T. J. L. de Boer, J. R. Fairlamb, C. C. Lin, R. J. Wainscoat, T. Lowe, G. Paek, A. S. B. Schultz, P. Minguez (IfA, Hawaii), A. Engel, A. Gagliano, G. Narayan, M. Soraisam (Illinois), Q. Wang (JHU), A. Rest (JHU, STScI), S. J. Smartt, K. W. Smith (Oxford / QUB), C. R. Angus (QUB), K. Alexander, P. Blanchard, L. DeMarchi, A. Hajela, W. Jacobson-Galan, R. Margutti, D. Matthews, C. Stauffer, M. Stroh (Northwestern), M. Drout (U Toronto), D. A. Coulter, G. Dimitriadis, R. J. Foley, T. Hung, C. D. Kilpatrick, C. Rojas-Bravo, M. R. Siebert (UC Santa Cruz), E. Ramirez-Ruiz (UC Santa Cruz, DARK)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026ptu - 2026-07-16 06:10:00 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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_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
24283 2026-07-16 06:10:00 Lick-3m / KAST Ravjit Kaur (UCSC) UCSC tns_2026ptu_2026-07-16_06-10-00.00_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2026-06-16 00:24:26 - 2026-06-19 22:28:50 2461207.516968 - 2461211.436689 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
593671 2026-06-19 22:28:50 2461211.436689 18.56 0.07 ABMag L-GOTO GOTO-N_GOTO-2 180
593670 2026-06-16 00:24:26 2461207.516968 20.1 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
g-P1 PS2_GPC2 2026-06-19 08:27:20 - 2026-06-19 08:27:20 2461210.85231 - 2461210.85231 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
593297 2026-06-19 08:27:20 2461210.85231 19.04 0.1 21 ABMag g-P1 PS2_GPC2 27 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
309503 2026-06-21 23:00:39 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 16:07:48.126 +39:11:37.63 2026-06-19 22:28:50.016 18.56 L-GOTO Other GOTO26ghi GOTO N
309221 2026-06-21 08:58:48 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 16:07:48.159 +39:11:37.64 2026-06-19 08:27:19.584 19.04 g-P1 PSN PS21ivo Pan-STARRS 2026TNSTR2650....1J N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24276 2026-07-16 22:36:23 Ravjit Kaur Ravjit Kaur (UCSC), Jenna Karcheski (UCSC), Ryan J. Foley (UCSC), Tejan Dass (UCSC/Thacher), Charlie O. Maitland-Lewis (UCSC/Thacher), Jett V. Mortensen (UCSC/Thacher) UCSC SN II 0.0379 1 UCSC When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. We measure a H-alpha absorption velocity of -7,700 km/s. 2026TNSCR2959....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
24283 2026-07-16 06:10:00 Lick-3m / KAST Ravjit Kaur (UCSC) UCSC tns_2026ptu_2026-07-16_06-10-00.00_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Sun, 06/21/2026 - 23:00

Object coordinates updated

Object coordinates updated according to AT-report 309221 of Group Pan-STARRS
Previous RA, DEC: 16:07:48.159, +39:11:37.64 (241.950662, +39.193789)
Updated RA, DEC: 16:07:48.159, +39:11:37.64 (241.950661035, +39.1937900502)

TNS
System

Sun, 06/21/2026 - 11:50

AT Report/s were associated with object

Pan-STARRS AT report/s 309221 for 2021vil were associated with object AT2026ptu.