RA/DEC (2000)
01:28:22.484 -35:59:28.21
22.093685 -35.991168125
Type
SN Ia
Redshift
0.018199
Discovery ReportClassification Report
Related AstroNotes: 2025-275
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-23 13:14:26.880
TNS AT
Y
Public
Y
Discovery Mag
19.03
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_2025vlw - 2025-08-30 04:02:18 NOT / ALFOSC (GOTO)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
 ▌ATLAS-CHL_ATLAS-04_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
21918 2025-08-30 04:02:18 NOT / ALFOSC 600 I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025vlw_2025-08-30_04-02-17.692_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-08-23 13:14:27 - 2025-08-23 13:14:27 2460911.051698 - 2460911.051698 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512422 2025-08-23 13:14:27 2460911.051698 19.03 0.09 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-S_GOTO-3 2025-07-16 16:39:02 - 2025-07-16 16:39:02 2460873.193769 - 2460873.193769 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512421 2025-07-16 16:39:02 2460873.193769 19.7 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-09-06 04:39:56 - 2025-09-06 04:39:56 2460924.6944 - 2460924.6944 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
515926 2025-09-06 04:39:56 2460924.6944 17.033 0.078 18.28 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-09-04 12:43:58 - 2025-09-04 12:43:58 2460923.03053 - 2460923.03053 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
515925 2025-09-04 12:43:58 2460923.03053 18.86 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [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
269436 2025-09-06 13:11:31 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 01:28:22.484 -35:59:28.21 2025-09-06 04:39:56.160 17.033 orange-ATLAS PSN ATLAS25lbn ATLAS N
267717 2025-08-26 09:06:56 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 01:28:22.508 -35:59:28.40 2025-08-23 13:14:26.880 19.03 L-GOTO Other GOTO25ggw GOTO 2025TNSTR3376....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
21918 2025-08-30 10:09:11 Tom Killestein M. Pursiainen, I. Worssam, J. Lyman, D. O'Neill, T. Killestein, K. Ackley, M. Dyer, 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, A. Kumar on behalf of GOTO collaboration GOTO SN Ia 0.018199 1 GOTO Good matches are obtained to templates of SNe Ia (with some plausible matches to 91bg- and 02es-like subtypes). Redshift corresponds to the host galaxy's spectroscopic redshift via NED. 2025TNSCR3465....1P
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
21918 2025-08-30 04:02:18 NOT / ALFOSC 600 I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025vlw_2025-08-30_04-02-17.692_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Sat, 09/06/2025 - 13:11

Object coordinates updated

Object coordinates updated according to AT-report 269436 of Group ATLAS
Previous RA, DEC: 01:28:22.508, -35:59:28.40 (22.093784, -35.991222)
Updated RA, DEC: 01:28:22.484, -35:59:28.21 (22.093685, -35.991168125)