RA/DEC (2000)
22:58:35.494 +30:48:55.74
344.647892128 +30.8154843009
Type
SN Ia
Redshift
0.044
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-21 00:15:07.200
TNS AT
Y
Public
Y
Discovery Mag
19.33
Filter
L-GOTO
Reporter/s
A. Kumar, G. Ramsay, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, D. O'Neill, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025uss - 2025-08-24 08:29:57 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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
21855 2025-08-24 08:29:57 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025uss_2025-08-24_08-29-57.158738_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-19 04:07:08 - 2025-08-19 04:07:08 2460906.67162 - 2460906.67162 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511552 2025-08-19 04:07:08 2460906.67162 20 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-07-29 03:35:57 - 2025-08-21 00:15:07 2460885.649964 - 2460908.510502 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510757 2025-08-21 00:15:07 2460908.510502 19.33 0.18 ABMag L-GOTO GOTO-N_GOTO-1 360
510756 2025-07-29 03:35:57 2460885.649964 19.5 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-08-18 08:26:10 - 2025-08-18 08:26:10 2460905.8515046 - 2460905.8515046 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511260 2025-08-18 08:26:10 2460905.8515046 20.7242 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-08-22 08:14:04 - 2025-08-22 08:14:04 2460909.8431019 - 2460909.8431019 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511261 2025-08-22 08:14:04 2460909.8431019 18.9799 0.081381 20.8471 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-08-22 09:52:50 - 2025-08-22 09:52:50 2460909.91169 - 2460909.91169 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511553 2025-08-22 09:52:50 2460909.91169 19.138 0.075 20.25 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 110 Robot
w-P1 PS1_GPC1 2025-09-15 12:12:17 - 2025-09-15 12:12:17 2460934.00853 - 2460934.00853 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546428 2025-09-15 12:12:17 2460934.00853 17.79 0.01 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
285143 2025-12-31 15:24:41 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 22:58:35.494 +30:48:55.74 2025-09-15 12:12:16.992 17.79 w-P1 PSN PS25lyi Pan-STARRS N
267235 2025-08-23 10:05:42 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 22:58:35.498 +30:48:55.77 2025-08-22 09:52:50.016 19.138 orange-ATLAS PSN ATLAS25kfg ATLAS N
267113 2025-08-22 20:35:16 ALeRCE A. Munoz-Arancibia,G. Pignata,F.E. Bauer et al. ALeRCE ZTF 22:58:35.492 +30:48:55.77 2025-08-22 08:14:04.004 18.9799 g-ZTF PSN SDSS J225835.53+304856.1 ZTF25abkrljh ZTF Early SN candidate (g-rise > 0.44+-0.02 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/ZTF25abkrljh N
266847 2025-08-21 06:06:28 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 22:58:35.455 +30:48:55.85 2025-08-21 00:15:07.200 19.33 L-GOTO Other GOTO25gby GOTO 2025TNSTR3299....1K N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21855 2025-08-24 09:23:05 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.044 1 ZTF 2025TNSCR3359....1F
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
21855 2025-08-24 08:29:57 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025uss_2025-08-24_08-29-57.158738_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Wed, 12/31/2025 - 15:24

Object coordinates updated

Object coordinates updated according to AT-report 285143 of Group Pan-STARRS
Previous RA, DEC: 22:58:35.492, +30:48:55.77 (344.6478843, +30.8154904)
Updated RA, DEC: 22:58:35.494, +30:48:55.74 (344.647892128, +30.8154843009)

TNS
System

Fri, 08/22/2025 - 20:35

Object coordinates updated

Object coordinates updated according to AT-report 267113 of Group ZTF
Previous RA, DEC: 22:58:35.455, +30:48:55.85 (344.647729, +30.815513)
Updated RA, DEC: 22:58:35.492, +30:48:55.77 (344.6478843, +30.8154904)