RA/DEC (2000)
23:10:02.819 -27:35:08.21
347.511747553 -27.5856144603
Type
SN Ia
Redshift
0.066
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-10-18 04:01:35.000
TNS AT
Y
Public
Y
Host Name
WISEA J231002.03-273504.3
Discovery Mag
19.5294
Filter
r-ZTF
Reporter/s
F. Forster, F.E. Bauer, 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_2025aavh - 2025-10-24 23:37:21 NOT / ALFOSC (None)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-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_cyan
 ▌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
22288 2025-10-24 23:37:21 NOT / ALFOSC 1800 Wili Sirén, Essi Björkqvist, Venla Kangas, Suman Sahu None tns_2025aavh_2025-10-24_23-37-21_NOT_ALFOSC_None.ascii tns_2025aavh_2025-10-24_23-37-21_NOT_ALFOSC_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-10-20 11:24:15 - 2025-10-20 11:24:15 2460968.97517 - 2460968.97517 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
526281 2025-10-20 11:24:15 2460968.97517 19.01 0.08 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-N_GOTO-2 2025-10-08 23:27:52 - 2025-10-08 23:27:52 2460957.477676 - 2460957.477676 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
526280 2025-10-08 23:27:52 2460957.477676 18.7 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-10-18 03:33:18 - 2025-10-18 03:33:18 2460966.64813 - 2460966.64813 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524923 2025-10-18 03:33:18 2460966.64813 19.24 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-10-13 04:32:54 - 2025-10-18 04:01:35 2460961.6895139 - 2460966.6677662 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524699 2025-10-18 04:01:35 2460966.6677662 19.5294 0.151819 19.8679 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
527939 2025-10-18 04:01:35 2460966.6677662 19.5294 0.151819 19.8679 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
527938 2025-10-13 04:32:54 2460961.6895139 20.1668 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
g-ZTF P48_ZTF-Cam 2025-10-13 06:47:54 - 2025-10-13 06:47:54 2460961.7832639 - 2460961.7832639 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524698 2025-10-13 06:47:54 2460961.7832639 19.7959 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
cyan-ATLAS ATLAS-MLO_ATLAS-01 2025-10-19 08:00:11 - 2025-10-19 08:00:11 2460967.83346 - 2460967.83346 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524924 2025-10-19 08:00:11 2460967.83346 19.083 0.145 19.37 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
w-P1 PS1_GPC1 2025-11-15 06:10:28 - 2025-11-15 06:10:28 2460994.75727 - 2460994.75727 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
531473 2025-11-15 06:10:28 2460994.75727 19.15 0.05 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
277069 2025-11-16 18:23:11 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 23:10:02.819 -27:35:08.21 2025-11-15 06:10:28.128 19.15 w-P1 PSN PS25ija Pan-STARRS N
275279 2025-10-30 19:17:36 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 23:10:02.804 -27:35:08.18 2025-10-18 04:01:35.000 19.5294 r-ZTF PSN ZTF25abxlbva ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25abxlbva N
274541 2025-10-23 15:43:57 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 23:10:02.811 -27:35:08.75 2025-10-20 11:24:14.688 19.01 L-GOTO Other GOTO25itx GOTO N
273934 2025-10-19 13:26:48 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 23:10:02.814 -27:35:08.17 2025-10-19 08:00:10.944 19.083 cyan-ATLAS PSN ATLAS25mxl ATLAS N
273827 2025-10-18 21:33:56 ALeRCE F. Forster,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 23:10:02.789 -27:35:08.47 2025-10-18 04:01:35.000 19.5294 r-ZTF PSN WISEA J231002.03-273504.3 ZTF25abxlbva ZTF Early SN candidate (r-rise > 0.13+-0.03 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/ZTF25abxlbva 2025TNSTR4169....1F N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22288 2025-10-25 11:40:35 Christina Humina Wili Sirén, Essi Björkqvist, Venla Kangas, Suman Sahu, Christina Humina, Erkki Kankare, Tuomas Kangas (University of Turku), Niko Pyykkinen (NOT) None SN Ia 0.066 1 Classification was done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) as part of a remote observing course at the University of Turku. AT 2025aavh is well reproduced by a SN Ia spectrum around peak. Redshift from spectral match. 2025TNSCR4292....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
22288 2025-10-24 23:37:21 NOT / ALFOSC 1800 Wili Sirén, Essi Björkqvist, Venla Kangas, Suman Sahu None tns_2025aavh_2025-10-24_23-37-21_NOT_ALFOSC_None.ascii tns_2025aavh_2025-10-24_23-37-21_NOT_ALFOSC_None.fits Object

Comments

TNS
System

Sun, 11/16/2025 - 18:23

Object coordinates updated

Object coordinates updated according to AT-report 277069 of Group Pan-STARRS
Previous RA, DEC: 23:10:02.804, -27:35:08.18 (347.51168498182, -27.585605654545)
Updated RA, DEC: 23:10:02.819, -27:35:08.21 (347.511747553, -27.5856144603)

TNS
System

Thu, 10/30/2025 - 19:17

Object coordinates updated

Object coordinates updated according to AT-report 275279 of Group ZTF
Previous RA, DEC: 23:10:02.789, -27:35:08.47 (347.5116213, -27.5856853)
Updated RA, DEC: 23:10:02.804, -27:35:08.18 (347.51168498182, -27.585605654545)