RA/DEC (2000)
20:59:05.704 +11:08:41.09
314.773764908 +11.1447459326
Type
SN II
Redshift
0.031458
Related AstroNotes: 2025-263
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-07-24 13:13:03.936
TNS AT
Y
Public
Y
Discovery Mag
19.16
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

Spectra

 SN_2025sad - 2025-09-16 05:07:23 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-S_GOTO-4_L
 PS2_GPC2_w
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-MLO_ATLAS-01_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
22087 2025-09-16 05:07:23 P60 / SEDM 2700 SEDmRobot ZTF tns_2025sad_2025-09-16_05-07-22.724822_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-07-25 01:42:29 - 2025-07-25 01:42:29 2460881.57117 - 2460881.57117 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505220 2025-07-25 01:42:29 2460881.57117 18.952 0.084 20.2 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-S_GOTO-4 2025-07-24 13:13:04 - 2025-07-24 13:13:04 2460881.050743 - 2460881.050743 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504608 2025-07-24 13:13:04 2460881.050743 19.16 0.1 ABMag L-GOTO GOTO-S_GOTO-4 180
w-P1 PS2_GPC2 2025-07-24 09:55:53 - 2025-07-24 09:55:53 2460880.91381 - 2460880.91381 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505168 2025-07-24 09:55:53 2460880.91381 19.22 0.06 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-07-21 23:36:09 - 2025-07-21 23:36:09 2460878.483444 - 2460878.483444 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504607 2025-07-21 23:36:09 2460878.483444 19.5 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-15 05:49:35 - 2025-09-15 05:49:35 2460933.7427662 - 2460933.7427662 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517520 2025-09-15 05:49:35 2460933.7427662 19.1352 0.101899 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-09-11 06:56:15 - 2025-09-11 06:56:15 2460929.7890625 - 2460929.7890625 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517519 2025-09-11 06:56:15 2460929.7890625 19.9265 0.174087 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-07-24 09:35:37 - 2025-07-24 09:35:37 2460880.89973 - 2460880.89973 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505219 2025-07-24 09:35:37 2460880.89973 19.29 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
270222 2025-09-15 16:40:20 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 20:59:05.710 +11:08:41.22 2025-09-11 06:56:15.000 19.9265 g-ZTF PSN ZTF25abqutfj ZTF N
263873 2025-07-26 13:22:25 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:59:05.706 +11:08:41.02 2025-07-25 01:42:29.088 18.952 wide-ATLAS PSN ATLAS25igw ATLAS N
263834 2025-07-26 11:11:35 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 20:59:05.704 +11:08:41.09 2025-07-24 09:55:53.184 19.22 w-P1 PSN PS25fhs Pan-STARRS N
263589 2025-07-24 14:05:10 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 20:59:05.726 +11:08:40.98 2025-07-24 13:13:03.936 19.16 L-GOTO Other GOTO25fhs GOTO 2025TNSTR2869....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
22087 2025-09-23 18:15:11 ZTF_Bot1 J. Sollerman, K. Das, A. Mehla, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN II 0.031458 1 ZTF 2025TNSCR3836....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
22087 2025-09-16 05:07:23 P60 / SEDM 2700 SEDmRobot ZTF tns_2025sad_2025-09-16_05-07-22.724822_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 263834 of Group Pan-STARRS
Previous RA, DEC: 20:59:05.726, +11:08:40.98 (314.77386, +11.144717)
Updated RA, DEC: 20:59:05.704, +11:08:41.09 (314.773764908, +11.1447459326)