RA/DEC (2000)
22:52:02.783 -07:15:41.43
343.011597698 -7.26150889138
Type
SN Ia
Redshift
0.123
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-11-11 10:27:36.576
TNS AT
Y
Public
Y
Discovery Mag
20.02
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_2025adjf - 2025-11-17 02:12:28 SOAR / Goodman (STEP)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
 ▌GOTO-S_GOTO-3_L
 ▌PS2_GPC2_w
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌CTIO-4m_DECAM_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
23862 2025-11-17 02:12:28 SOAR / Goodman 1800 André Santos André Santos STEP tns_2025adjf_2025-11-17_02-12-28_SOAR_Goodman_STEP.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-11-15 21:48:43 - 2025-11-16 21:05:44 2460995.40883 - 2460996.37898 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
531646 2025-11-16 21:05:44 2460996.37898 19.176 0.108 20.01 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
531645 2025-11-15 21:48:43 2460995.40883 19.85 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-4 2025-11-10 11:00:51 - 2025-11-10 11:00:51 2460989.958916 - 2460989.958916 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
531023 2025-11-10 11:00:51 2460989.958916 20.1 ABMag L-GOTO GOTO-S_GOTO-4 360 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-11-11 10:27:37 - 2025-11-11 10:27:37 2460990.935839 - 2460990.935839 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
531024 2025-11-11 10:27:37 2460990.935839 20.02 0.17 ABMag L-GOTO GOTO-S_GOTO-3 360
w-P1 PS2_GPC2 2025-11-15 06:37:46 - 2025-11-15 06:37:46 2460994.77623 - 2460994.77623 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
553349 2025-11-15 06:37:46 2460994.77623 19.34 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-11-17 00:44:05 - 2025-11-18 01:59:35 2460996.5306134 - 2460997.583044 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
532182 2025-11-18 01:59:35 2460997.583044 19.36 0.16 20.63 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
532181 2025-11-17 00:44:05 2460996.5306134 20.68 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2025-11-09 06:39:41 - 2025-11-09 06:39:41 2460988.7775579 - 2460988.7775579 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
533848 2025-11-09 06:39:41 2460988.7775579 19.0809 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-11-11 04:02:39 - 2025-11-26 04:35:49 2460990.6685069 - 2461005.6915394 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
533850 2025-11-26 04:35:49 2461005.6915394 19.2507 0.152186 ABMag g-ZTF P48_ZTF-Cam
533849 2025-11-11 04:02:39 2460990.6685069 19.9724 0.186685 ABMag g-ZTF P48_ZTF-Cam
g-Sloan CTIO-4m_DECAM 2025-11-14 00:46:48 - 2025-11-14 00:46:48 2460993.5324972 - 2460993.5324972 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
531329 2025-11-14 00:46:48 2460993.5324972 19.4758 0.0118158 ABMag g-Sloan CTIO-4m_DECAM
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
288702 2026-01-24 18:53:22 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 22:52:02.783 -07:15:41.43 2025-11-15 06:37:46.272 19.34 w-P1 PSN PS25muj Pan-STARRS N
278287 2025-11-26 05:22:45 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 22:52:02.787 -07:15:41.29 2025-11-11 04:02:38.996 19.9724 g-ZTF PSN ZTF22aaqttfm ZTF N
277477 2025-11-18 07:43:02 BlackGEM_Bot1 G. Ramsay, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 22:52:02.780 -07:15:41.91 2025-11-18 01:59:35.000 19.36 BG-q-BlackGem PSN BGEM J225202.78-071541.9 BlackGEM N
277171 2025-11-17 11:12:57 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 22:52:02.775 -07:15:41.38 2025-11-16 21:05:43.872 19.176 wide-ATLAS PSN ATLAS25ogw ATLAS N
276966 2025-11-15 21:59:34 GW-MMADS_bot Xander J. Hall (CMU), Tomás Cabrera (CMU), Lei Hu (CMU) et al. GW-MMADS GW-MMADS 22:52:02.775 -07:15:41.43 2025-11-14 00:46:48.000 19.4758 g-Sloan PSN T202511142252028m071541 GW-MMADS N
276729 2025-11-14 22:28:02 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 22:52:02.791 -07:15:41.50 2025-11-11 10:27:36.576 20.02 L-GOTO Other GOTO25kan GOTO 2025TNSTR4575....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
23858 2026-05-29 14:42:29 André Santos André Santos STEP SN Ia 0.123 1 STEP Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) and SNID-SAGE (Stoppa 2025), we find good matches to SN Ia one week before maximum light (e.g., SN 2005eu at z ~0.123 and -7.1d from maximum). 2026TNSCR2334....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
23862 2025-11-17 02:12:28 SOAR / Goodman 1800 André Santos André Santos STEP tns_2025adjf_2025-11-17_02-12-28_SOAR_Goodman_STEP.flm Object

Comments

TNS
System

Sat, 01/24/2026 - 18:53

Object coordinates updated

Object coordinates updated according to AT-report 288702 of Group Pan-STARRS
Previous RA, DEC: 22:52:02.780, -07:15:41.91 (343.011583, -7.261642)
Updated RA, DEC: 22:52:02.783, -07:15:41.43 (343.011597698, -7.26150889138)

TNS
System

Tue, 11/18/2025 - 07:43

Object coordinates updated

Object coordinates updated according to AT-report 277477 of Group BlackGEM
Previous RA, DEC: 22:52:02.775, -07:15:41.38 (343.011561429, -7.26149571429)
Updated RA, DEC: 22:52:02.780, -07:15:41.91 (343.011583, -7.261642)

TNS
System

Mon, 11/17/2025 - 11:12

Object coordinates updated

Object coordinates updated according to AT-report 277171 of Group ATLAS
Previous RA, DEC: 22:52:02.791, -07:15:41.50 (343.01163, -7.261528)
Updated RA, DEC: 22:52:02.775, -07:15:41.38 (343.011561429, -7.26149571429)