RA/DEC (2000)
13:52:01.808 +15:40:05.07
208.007534286 +15.6680742857
Type
SN Ia
Redshift
0.05
Discovery ReportClassification Report
Related AstroNotes: 2025-134
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-04-16 12:55:52.320
TNS AT
Y
Public
Y
Discovery Mag
18.94
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025hnt - 2025-05-02 05:31:33 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2025hnt - 2025-04-28 00:13:00 Ekar / AFOSC (Padova-Asiago)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-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌GOTO-N_GOTO-1_L
   
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
20941 2025-05-02 05:31:33 ESO-NTT / EFOSC2-NTT 1560 Catalina Casanueva, Bastián Ayala Raya Dastidar, Amit Kumar ePESSTO+ tns_2025hnt_2025-05-02_05-31-33_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025hnt_2025-05-02_05-31-33_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
20928 2025-04-28 00:13:00 Ekar / AFOSC 1200 A. Reguitti A. Reguitti Padova-Asiago tns_2025hnt_2025-04-28_00-13-00_Ekar_AFOSC_Padova-Asiago.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-04-16 12:55:52 - 2025-04-16 12:55:52 2460782.0388 - 2460782.0388 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482482 2025-04-16 12:55:52 2460782.0388 18.94 0.22 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-18 06:22:24 - 2025-04-22 05:10:41 2460783.76556 - 2460787.71575 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
483322 2025-04-22 05:10:41 2460787.71575 18.163 0.095 19.11 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
483321 2025-04-18 06:22:24 2460783.76556 18.81 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-04-15 22:24:22 - 2025-04-15 22:24:22 2460781.43359 - 2460781.43359 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482481 2025-04-15 22:24:22 2460781.43359 19 ABMag L-GOTO GOTO-N_GOTO-1 180 [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
252251 2025-04-22 07:42:20 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 13:52:01.808 +15:40:05.07 2025-04-22 05:10:40.800 18.163 orange-ATLAS PSN ATLAS25eae ATLAS N
251806 2025-04-17 23:24:20 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 13:52:01.752 +15:40:04.68 2025-04-16 12:55:52.320 18.94 L-GOTO Other GOTO25bxa GOTO 2025TNSTR1413....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20941 2025-05-02 17:13:38 ePESSTOplus_Bot1 Catalina Casanueva, Bastián Ayala, Raya Dastidar, Amit Kumar, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.05 1 Add ePESSTO+ 2025TNSCR1637....1C
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
20941 2025-05-02 05:31:33 ESO-NTT / EFOSC2-NTT 1560 Catalina Casanueva, Bastián Ayala Raya Dastidar, Amit Kumar ePESSTO+ tns_2025hnt_2025-05-02_05-31-33_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025hnt_2025-05-02_05-31-33_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
20928 2025-05-01 08:08:26 Andrea Reguitti A. Reguitti (INAF-OAPd) Padova-Asiago SN Ia 0.04 1 Add Padova-Asiago The best-fit found by GELATO is with SN 2003du at around or just before maximum for z between 0.03 and 0.05. 2025TNSCR1618....1R
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
20928 2025-04-28 00:13:00 Ekar / AFOSC 1200 A. Reguitti A. Reguitti Padova-Asiago tns_2025hnt_2025-04-28_00-13-00_Ekar_AFOSC_Padova-Asiago.txt Object

Comments

TNS
System

Tue, 04/22/2025 - 07:42

Object coordinates updated

Object coordinates updated according to AT-report 252251 of Group ATLAS
Previous RA, DEC: 13:52:01.752, +15:40:04.68 (208.007298, +15.667968)
Updated RA, DEC: 13:52:01.808, +15:40:05.07 (208.007534286, +15.6680742857)