RA/DEC (2000)
00:57:31.865 -17:21:46.87
14.3827702 -17.3630191
Type
SN II
Redshift
0.03
Discovery ReportClassification Report
Related AstroNotes: 2025-151
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2025-05-04 10:04:48.000
TNS AT
Y
Public
Y
Host Name
WISEA J005731.88-172146.9
Host Redshift
0.02619
Discovery Mag
15.9
Filter
g-Sloan
Reporter/s
K. Z. Stanek, J. Callahan, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025jtq - 2025-05-21 09:33:42 ESO-NTT / EFOSC2-NTT (ePESSTO+)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-S_GOTO-3_L
 ▌P48_ZTF-Cam_r
 ▌ASASSN-4_Leavitt_g
 ▌ASASSN-2_Cassius_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
21092 2025-05-21 09:33:42 ESO-NTT / EFOSC2-NTT 180 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025jtq_2025-05-21_09-33-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025jtq_2025-05-21_09-33-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-01-09 11:26:49 - 2025-01-09 11:26:49 2460684.976958 - 2460684.976958 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
500702 2025-01-09 11:26:49 2460684.976958 17.2 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-06-13 18:15:37 - 2025-06-13 18:15:37 2460840.260838 - 2460840.260838 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
500703 2025-06-13 18:15:37 2460840.260838 17.09 0.03 ABMag L-GOTO GOTO-S_GOTO-3 180
r-ZTF P48_ZTF-Cam 2025-07-29 10:23:52 - 2025-08-02 10:17:03 2460885.9332407 - 2460889.9285069 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507011 2025-08-02 10:17:03 2460889.9285069 17.6449 0.0404909 ABMag r-ZTF P48_ZTF-Cam
507010 2025-07-29 10:23:52 2460885.9332407 17.5876 0.0467368 ABMag r-ZTF P48_ZTF-Cam
g-Sloan ASASSN-4_Leavitt 2025-01-31 01:12:00 - 2025-01-31 01:12:00 2460706.55 - 2460706.55 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486812 2025-01-31 01:12:00 2460706.55 16.8 ABMag g-Sloan ASASSN-4_Leavitt [Last non detection]
g-Sloan ASASSN-2_Cassius 2025-05-04 10:04:48 - 2025-05-04 10:04:48 2460799.92 - 2460799.92 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486813 2025-05-04 10:04:48 2460799.92 15.9 ABMag g-Sloan ASASSN-2_Cassius
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
264774 2025-08-02 17:59:56 Fritz Daniel Perley (LJMU),Christoffer Fremling (Caltech),Theophile du Laz (Caltech) on behalf of ZTF et al. ZTF ZTF 00:57:31.865 -17:21:46.87 2025-07-29 10:23:51.996 17.5876 r-ZTF PSN ZTF25abfmbhf ZTF N
261453 2025-07-04 07:22:00 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 00:57:31.859 -17:21:46.62 2025-06-13 18:15:36.576 17.09 L-GOTO Other GOTO25eow GOTO N
254108 2025-05-05 16:43:20 Krzysztof Stanek K. Z. Stanek,J. Callahan,for the ASAS-SN team et al. ASAS-SN ASAS-SN 00:57:31.752 -17:21:47.38 2025-05-04 10:04:48.000 15.9 g-Sloan PSN WISEA J005731.88-172146.9 ASASSN-25bs ASAS-SN Present in several epochs, discovered after the seasonal break 2025TNSTR1672....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
21092 2025-05-21 15:59:47 ePESSTOplus_Bot1 Callum Francis Aster, Stefano Pio Cosentino, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN II 0.03 1 ePESSTO+ 2025TNSCR1879....1A
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
21092 2025-05-21 09:33:42 ESO-NTT / EFOSC2-NTT 180 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025jtq_2025-05-21_09-33-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025jtq_2025-05-21_09-33-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sat, 08/02/2025 - 17:59

Object coordinates updated

Object coordinates updated according to AT-report 264774 of Group ZTF
Previous RA, DEC: 00:57:31.859, -17:21:46.62 (14.382747, -17.36295)
Updated RA, DEC: 00:57:31.865, -17:21:46.87 (14.3827702, -17.3630191)

TNS
System

Fri, 07/04/2025 - 07:22

Object coordinates updated

Object coordinates updated according to AT-report 261453 of Group GOTO
Previous RA, DEC: 00:57:31.752, -17:21:47.38 (14.3823, -17.36316)
Updated RA, DEC: 00:57:31.859, -17:21:46.62 (14.382747, -17.36295)