RA/DEC (2000)
08:09:45.694 +51:40:32.66
122.440390418 +51.6757379209
Type
SN Ia
Redshift
0.071
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-02-18 07:24:03.997
TNS AT
Y
Public
Y
Host Name
SDSS J080945.70+514032.5
Discovery Mag
19.1338
Filter
r-ZTF
Reporter/s
S. Jurado, F.E. Bauer, F. Forster, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, 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_2025byj - 2025-02-19 08:27:23 UH88 / SNIFS (SCAT)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-1_L
 ▌P48_ZTF-Cam_r
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_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
20413 2025-02-19 08:27:23 UH88 / SNIFS 2100 Hinkle SCAT tns_2025byj_2025-02-19_08-27-23_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2025-02-04 22:29:36 - 2025-02-13 20:24:55 2460711.437223 - 2460720.350635 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
469849 2025-02-13 20:24:55 2460720.350635 19.04 0.19 ABMag L-GOTO GOTO-N_GOTO-1 180
469848 2025-02-04 22:29:36 2460711.437223 19.6 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-02-17 06:36:36 - 2025-02-18 07:24:04 2460723.7754167 - 2460724.8083796 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
469592 2025-02-18 07:24:04 2460724.8083796 19.1338 0.113925 20.1009 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
469591 2025-02-17 06:36:36 2460723.7754167 19.297 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-02-19 09:16:34 - 2025-02-19 09:16:34 2460725.8865 - 2460725.8865 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470033 2025-02-19 09:16:34 2460725.8865 18.839 0.118 19.51 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-02-17 10:19:45 - 2025-02-17 10:19:45 2460723.93038 - 2460723.93038 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470032 2025-02-17 10:19:45 2460723.93038 19.25 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-02-21 08:35:54 - 2025-02-21 08:35:54 2460727.85826 - 2460727.85826 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486784 2025-02-21 08:35:54 2460727.85826 19.23 0.04 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
254080 2025-05-05 16:27:33 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 08:09:45.694 +51:40:32.66 2025-02-21 08:35:53.664 19.23 w-P1 PSN PS25cel Pan-STARRS N
245149 2025-02-20 05:43:13 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 08:09:45.704 +51:40:32.95 2025-02-19 09:16:33.600 18.839 orange-ATLAS PSN ATLAS25btf ATLAS N
245069 2025-02-19 21:14:16 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 08:09:45.704 +51:40:32.86 2025-02-13 20:24:55.296 19.04 L-GOTO Other GOTO25aml GOTO N
244964 2025-02-18 17:50:59 ALeRCE S. Jurado,F.E. Bauer,F. Forster et al. ALeRCE ZTF 08:09:45.698 +51:40:32.64 2025-02-18 07:24:03.997 19.1338 r-ZTF PSN SDSS J080945.70+514032.5 ZTF25aafvaqf ZTF Early SN candidate (r-rise > 0.08+-0.01 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/ZTF25aafvaqf 2025TNSTR.652....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
20413 2025-02-19 10:07:53 Jason Hinkle Jason Hinkle (UH/IfA) on behalf of SCAT SCAT SN Ia 0.071 1 SCAT SN Ia near maximum light. The redshift is estimated from the narrow host emission lines. Cross-correlation with SNID (Blondin & Tonry 2007) gives matches to normal SNe Ia at this redshift. 2025TNSCR.686....1H
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
20413 2025-02-19 08:27:23 UH88 / SNIFS 2100 Hinkle SCAT tns_2025byj_2025-02-19_08-27-23_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Mon, 05/05/2025 - 16:27

Object coordinates updated

Object coordinates updated according to AT-report 254080 of Group Pan-STARRS
Previous RA, DEC: 08:09:45.698, +51:40:32.64 (122.4404087, +51.6757324)
Updated RA, DEC: 08:09:45.694, +51:40:32.66 (122.440390418, +51.6757379209)