RA/DEC (2000)
16:55:41.831 +53:22:28.12
253.924296036 +53.3744772507
Type
SN Ia
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-06-18 07:12:25.004
TNS AT
Y
Public
Y
Host Name
WISEA J165541.73+532230.1
Discovery Mag
19.6751
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, G. Pignata, F.E. Bauer, F. Forster, A. Mourao, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025nzq - 2025-06-26 09:15:52 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
   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
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
21405 2025-06-26 09:15:52 Lick-3m / KAST 1800 Kyle Davis (UCSC) Kyle Davis (UCSC) UCSC tns_2025nzq_2025-06-26_09-15-52.37_Lick-3m_KAST_UCSC.flm Object We measure a Si II 6355 velocity of -12,600 km/s.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-06-17 01:01:45 - 2025-06-28 00:11:00 2460843.542877 - 2460854.507636 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498986 2025-06-28 00:11:00 2460854.507636 17.94 0.04 ABMag L-GOTO GOTO-N_GOTO-2 180
498985 2025-06-17 01:01:45 2460843.542877 19.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
g-P1 PS2_GPC2 2025-06-22 09:23:22 - 2025-06-22 09:23:22 2460848.89123 - 2460848.89123 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
497602 2025-06-22 09:23:22 2460848.89123 18.43 0.05 21 ABMag g-P1 PS2_GPC2 27 Robot
r-ZTF P48_ZTF-Cam 2025-06-16 07:44:19 - 2025-06-16 07:44:19 2460842.8224421 - 2460842.8224421 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496190 2025-06-16 07:44:19 2460842.8224421 20.3287 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-06-16 06:46:24 - 2025-06-18 07:12:25 2460842.7822222 - 2460844.8002894 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496191 2025-06-18 07:12:25 2460844.8002894 19.6751 0.129965 20.6708 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
498572 2025-06-18 07:12:25 2460844.8002894 19.6751 0.129965 20.6708 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
498571 2025-06-16 06:46:24 2460842.7822222 20.6516 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-06-19 13:06:19 - 2025-06-19 13:06:19 2460846.04605 - 2460846.04605 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496962 2025-06-19 13:06:19 2460846.04605 19.23 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-06-20 10:37:45 - 2025-06-20 10:37:45 2460846.94288 - 2460846.94288 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496963 2025-06-20 10:37:45 2460846.94288 18.898 0.149 19.56 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 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
260377 2025-06-28 07:27:13 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 16:55:41.834 +53:22:28.34 2025-06-28 00:11:00.096 17.94 L-GOTO Other GOTO25ekk GOTO N
260200 2025-06-26 18:15:56 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 16:55:41.843 +53:22:28.23 2025-06-18 07:12:25.004 19.6751 g-ZTF PSN ZTF25aavpehi ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aavpehi N
259785 2025-06-22 18:30:38 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 16:55:41.831 +53:22:28.12 2025-06-22 09:23:22.272 18.43 g-P1 PSN PS17dbn Pan-STARRS N
259461 2025-06-20 20:56:51 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:55:41.829 +53:22:29.20 2025-06-20 10:37:44.832 18.898 orange-ATLAS PSN ATLAS25gjn ATLAS N
259058 2025-06-18 15:14:43 ALeRCE A. Munoz-Arancibia,G. Pignata,F.E. Bauer et al. ALeRCE ZTF 16:55:41.838 +53:22:28.10 2025-06-18 07:12:25.004 19.6751 g-ZTF PSN WISEA J165541.73+532230.1 ZTF25aavpehi ZTF Early SN candidate (g-rise > 0.48+-0.06 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/ZTF25aavpehi 2025TNSTR2267....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21405 2025-06-27 01:18:06 Kyle Davis Kyle Davis (UCSC), Ryan Foley (UCSC) UCSC SN Ia 0.05 1 Add UCSC 2025TNSCR2442....1D
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
21405 2025-06-26 09:15:52 Lick-3m / KAST 1800 Kyle Davis (UCSC) Kyle Davis (UCSC) UCSC tns_2025nzq_2025-06-26_09-15-52.37_Lick-3m_KAST_UCSC.flm Object We measure a Si II 6355 velocity of -12,600 km/s.

Comments

TNS
System

Sun, 06/22/2025 - 18:30

Object coordinates updated

Object coordinates updated according to AT-report 259785 of Group Pan-STARRS
Previous RA, DEC: 16:55:41.838, +53:22:28.10 (253.924323, +53.3744722)
Updated RA, DEC: 16:55:41.831, +53:22:28.12 (253.924296036, +53.3744772507)