RA/DEC (2000)
10:42:47.469 +38:52:51.81
160.697788793 +38.8810594509
Type
SN II
Redshift
0.0315
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2021-07-04 04:22:41.001
TNS AT
Y
Public
Y
Discovery Mag
17.6886
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_2021aicz - 2026-01-14 11:02:35 Lick-3m / KAST (ZTF)z=
 ▌SN_2021aicz - 2025-12-13 10:30:18 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_g
 ▌P48_ZTF-Cam_r
 ▌ATLAS-HKO_ATLAS-02_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
22808 2026-01-14 11:02:35 Lick-3m / KAST Jacob Wise (LJMU), Christian Tapper (UCLA), Emily Elien (UCLA), R. Michael Rich (UCLA) Zoë McGrath (LJMU) ZTF tns_2021aicz_2026-01-14_11-02-35_Lick-3m_KAST_ZTF.txt Object
22618 2025-12-13 10:30:18 P60 / SEDM 2700 SEDmRobot ZTF tns_2021aicz_2025-12-13_10-30-17.940998_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-12-11 04:26:08 - 2025-12-19 02:50:47 2461020.684812 - 2461028.6186 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
541201 2025-12-19 02:50:47 2461028.6186 18.2 0.05 ABMag L-GOTO GOTO-N_GOTO-2 180
541200 2025-12-11 04:26:08 2461020.684812 19.8 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2026-01-07 12:41:16 - 2026-01-07 12:41:16 2461048.02866 - 2461048.02866 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547804 2026-01-07 12:41:16 2461048.02866 18.7 0.04 20.7 ABMag i-P1 PS2_GPC2 45 Robot
g-P1 PS2_GPC2 2025-12-13 15:18:33 - 2025-12-13 15:18:33 2461023.13788 - 2461023.13788 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538606 2025-12-13 15:18:33 2461023.13788 18.36 0.03 21 ABMag g-P1 PS2_GPC2 27 Robot
r-ZTF P48_ZTF-Cam 2021-07-02 04:28:10 - 2025-12-12 11:11:00 2459397.6862269 - 2461021.9659722 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538067 2025-12-12 11:11:00 2461021.9659722 19.7442 0.165656 ABMag r-ZTF P48_ZTF-Cam
538066 2021-07-04 04:22:41 2459399.682419 17.6886 0.118523 ABMag r-ZTF P48_ZTF-Cam
538065 2021-07-02 04:28:10 2459397.6862269 20.0405 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-12-12 15:51:25 - 2025-12-13 15:00:34 2461022.16071 - 2461023.12539 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538521 2025-12-13 15:00:34 2461023.12539 19.301 0.164 19.41 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
538520 2025-12-12 15:51:25 2461022.16071 19.11 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
286128 2026-01-09 10:21:34 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 10:42:47.469 +38:52:51.81 2026-01-07 12:41:16.224 18.7 i-P1 PSN PS25ioa Pan-STARRS N
281673 2025-12-20 22:06:29 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 10:42:47.496 +38:52:51.54 2025-12-19 02:50:47.040 18.2 L-GOTO Other GOTO25lyv GOTO N
280457 2025-12-14 05:25:37 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 10:42:47.469 +38:52:51.80 2025-12-13 15:18:32.832 18.36 g-P1 PSN PS25ioa Pan-STARRS N
280424 2025-12-13 19:16:33 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 10:42:47.496 +38:52:52.23 2025-12-13 15:00:33.696 19.301 orange-ATLAS PSN ATLAS25pra ATLAS N
280234 2025-12-12 11:59:35 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 10:42:47.488 +38:52:51.82 2021-07-04 04:22:41.001 17.6886 r-ZTF PSN ZTF21abjbfpg ZTF 2025TNSTR4942....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
22807 2026-01-19 18:27:58 Zoë McGrath Jacob Wise (LJMU), Zoë McGrath (LJMU), Aleksandra Bochenek (LJMU) ZTF SN II 0.0315 1 ZTF Confirmed as SN II due to broad Hα P-Cygni profiles. 2026TNSCR.242....1W
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
22808 2026-01-14 11:02:35 Lick-3m / KAST Jacob Wise (LJMU), Christian Tapper (UCLA), Emily Elien (UCLA), R. Michael Rich (UCLA) Zoë McGrath (LJMU) ZTF tns_2021aicz_2026-01-14_11-02-35_Lick-3m_KAST_ZTF.txt Object
22617 2025-12-17 21:30:01 ZTF_Bot1 J. Sollerman, K. Das, J. Castaneda Jaimes, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN II 0.031514 1 ZTF 2025TNSCR5025....1S
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
22618 2025-12-13 10:30:18 P60 / SEDM 2700 SEDmRobot ZTF tns_2021aicz_2025-12-13_10-30-17.940998_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Fri, 01/09/2026 - 10:21

Object coordinates updated

Object coordinates updated according to AT-report 286128 of Group Pan-STARRS
Previous RA, DEC: 10:42:47.469, +38:52:51.80 (160.697788183, +38.8810565646)
Updated RA, DEC: 10:42:47.469, +38:52:51.81 (160.697788793, +38.8810594509)

TNS
System

Sun, 12/14/2025 - 05:25

Object coordinates updated

Object coordinates updated according to AT-report 280457 of Group Pan-STARRS
Previous RA, DEC: 10:42:47.488, +38:52:51.82 (160.6978671, +38.881061)
Updated RA, DEC: 10:42:47.469, +38:52:51.80 (160.697788183, +38.8810565646)