RA/DEC (2000)
01:04:22.383 -16:44:28.08
16.0932610241 -16.7411320722
Type
SN II
Redshift
0.04
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-06-13 18:15:36.576
TNS AT
Y
Public
Y
Discovery Mag
18.42
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_2025nlw - 2025-08-22 08:57:19 P60 / SEDM (ZTF)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
 ▌P48_ZTF-Cam_r
 ▌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
21844 2025-08-22 08:57:19 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025nlw_2025-08-22_08-57-18.856159_P60_SEDM_ZTF.ascii 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
494913 2025-01-09 11:26:49 2460684.976958 17.4 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
494914 2025-06-13 18:15:37 2460840.260838 18.42 0.1 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-06-19 09:55:30 - 2025-06-20 07:20:23 2460845.91354 - 2460846.80582 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496772 2025-06-20 07:20:23 2460846.80582 18.024 0.138 18.43 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
496771 2025-06-19 09:55:30 2460845.91354 18.53 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-06-24 11:24:26 - 2025-07-13 11:21:32 2460850.9753009 - 2460869.973287 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502361 2025-07-13 11:21:32 2460869.973287 18.4601 0.114422 ABMag r-ZTF P48_ZTF-Cam
502360 2025-06-24 11:24:26 2460850.9753009 18.0665 0.079975 ABMag r-ZTF P48_ZTF-Cam
w-P1 PS1_GPC1 2025-08-23 13:11:53 - 2025-08-23 13:11:53 2460911.04992 - 2460911.04992 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516447 2025-08-23 13:11:53 2460911.04992 19.51 0.06 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
269693 2025-09-11 10:53:22 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 01:04:22.383 -16:44:28.08 2025-08-23 13:11:53.088 19.51 w-P1 PSN PS25hjt Pan-STARRS N
262410 2025-07-13 12:56:24 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 01:04:22.378 -16:44:27.99 2025-06-24 11:24:25.997 18.0665 r-ZTF PSN ZTF25aaxfkwe ZTF N
259323 2025-06-20 15:13:18 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 01:04:22.395 -16:44:27.53 2025-06-20 07:20:22.848 18.024 orange-ATLAS PSN ATLAS25gjc ATLAS N
258414 2025-06-13 22:53:30 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 01:04:22.375 -16:44:28.23 2025-06-13 18:15:36.576 18.42 L-GOTO Other GOTO25dme GOTO This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Henryk Krawczyk, Jason Alarcon, Cledison Marcos da Silva, Ciro Sirio Perrella, Virgilio Gonano 2025TNSTR2204....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
21844 2025-08-22 10:08:21 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN II 0.04 1 ZTF 2025TNSCR3329....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
21844 2025-08-22 08:57:19 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025nlw_2025-08-22_08-57-18.856159_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Thu, 09/11/2025 - 10:53

Object coordinates updated

Object coordinates updated according to AT-report 269693 of Group Pan-STARRS
Previous RA, DEC: 01:04:22.378, -16:44:27.99 (16.0932431, -16.7411089)
Updated RA, DEC: 01:04:22.383, -16:44:28.08 (16.0932610241, -16.7411320722)

TNS
System

Sun, 07/13/2025 - 12:56

Object coordinates updated

Object coordinates updated according to AT-report 262410 of Group ZTF
Previous RA, DEC: 01:04:22.395, -16:44:27.53 (16.0933133333, -16.74098)
Updated RA, DEC: 01:04:22.378, -16:44:27.99 (16.0932431, -16.7411089)

TNS
System

Fri, 06/20/2025 - 15:13

Object coordinates updated

Object coordinates updated according to AT-report 259323 of Group ATLAS
Previous RA, DEC: 01:04:22.375, -16:44:28.23 (16.093231, -16.741176)
Updated RA, DEC: 01:04:22.395, -16:44:27.53 (16.0933133333, -16.74098)