RA/DEC (2000)
20:40:02.729 +01:04:53.35
310.01136983636 +1.0814872818182
Type
SN Ia
Redshift
0.077589
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-24 22:05:52.800
TNS AT
Y
Public
Y
Discovery Mag
19.55
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_2025vis - 2025-09-11 07:11:21 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
 ▌LAST_LAST-Cam_Clear
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_g
   
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
22003 2025-09-11 07:11:21 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025vis_2025-09-11_07-11-21.020219_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-22 00:57:37 - 2025-08-22 00:57:37 2460909.54001 - 2460909.54001 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514743 2025-08-22 00:57:37 2460909.54001 19.74 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
Clear- LAST_LAST-Cam 2024-07-05 21:53:49 - 2025-08-31 21:49:47 2460497.41237 - 2460919.40957 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514894 2025-08-31 21:49:47 2460919.40957 18.97 ABMag Clear- LAST_LAST-Cam 400
514893 2024-07-05 21:53:49 2460497.41237 21.85 ABMag Clear- LAST_LAST-Cam 7480 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-08-29 20:54:44 - 2025-08-29 20:54:44 2460917.37134 - 2460917.37134 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514744 2025-08-29 20:54:44 2460917.37134 19.066 0.164 19.36 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-08-23 22:24:59 - 2025-08-24 22:05:53 2460911.434019 - 2460912.420749 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512132 2025-08-24 22:05:53 2460912.420749 19.55 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
512131 2025-08-23 22:24:59 2460911.434019 19.6 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-18 07:10:39 - 2025-08-26 07:32:04 2460905.7990625 - 2460913.8139352 5
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512412 2025-08-26 07:32:04 2460913.8139352 19.3435 0.115918 ABMag g-ZTF P48_ZTF-Cam
512411 2025-08-22 07:11:45 2460909.7998264 20.6051 0.164706 ABMag g-ZTF P48_ZTF-Cam
514593 2025-08-22 07:08:22 2460909.7974769 20.4017 0.247963 20.4373 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
512410 2025-08-18 07:10:39 2460905.7990625 20.8518 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
514592 2025-08-18 07:10:39 2460905.7990625 20.5594 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
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
268930 2025-09-01 15:19:17 LAST_Bot1 E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al. LAST LAST 20:40:02.740 +01:04:52.68 2025-08-31 21:49:46.848 18.97 Clear- PSN LAST N
268857 2025-09-01 09:13:19 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 20:40:02.740 +01:04:53.19 2025-08-29 20:54:43.776 19.066 orange-ATLAS PSN ATLAS25kum ATLAS N
268794 2025-08-31 18:18:46 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 20:40:02.729 +01:04:53.35 2025-08-22 07:08:22.004 20.4017 g-ZTF PSN ZTF25ablhwja ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25ablhwja N
267713 2025-08-26 08:38:34 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 20:40:02.738 +01:04:53.54 2025-08-22 07:11:45.000 20.6051 g-ZTF PSN ZTF25ablhwja ZTF N
267572 2025-08-24 22:33:58 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 20:40:02.747 +01:04:53.09 2025-08-24 22:05:52.800 19.55 L-GOTO Other GOTO25ght GOTO 2025TNSTR3352....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
22003 2025-09-11 08:50:43 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 0.077589 1 ZTF 2025TNSCR3661....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
22003 2025-09-11 07:11:21 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025vis_2025-09-11_07-11-21.020219_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 08/31/2025 - 18:18

Object coordinates updated

Object coordinates updated according to AT-report 268794 of Group ZTF
Previous RA, DEC: 20:40:02.738, +01:04:53.54 (310.0114073, +1.0815376)
Updated RA, DEC: 20:40:02.729, +01:04:53.35 (310.01136983636, +1.0814872818182)

TNS
System

Tue, 08/26/2025 - 08:38

Object coordinates updated

Object coordinates updated according to AT-report 267713 of Group ZTF
Previous RA, DEC: 20:40:02.747, +01:04:53.09 (310.011447, +1.081413)
Updated RA, DEC: 20:40:02.738, +01:04:53.54 (310.0114073, +1.0815376)