RA/DEC (2000)
23:39:10.622 +05:29:18.14
354.794258 +5.488372
Type
SN II
Redshift
0.01881
Discovery ReportClassification Report
Related AstroNotes: 2025-184
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-06-14 13:28:31.872
TNS AT
Y
Public
Y
Discovery Mag
18.19
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025nno - 2025-06-16 09:39:29 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-3_L
 ▌GOTO-N_GOTO-2_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌ATLAS-HKO_ATLAS-02_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
21327 2025-06-16 09:39:29 P60 / SEDM Jesper Sollerman ZTF tns_2025nno_2460842.9024175_P60_SEDM_ZTF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-05-24 18:52:40 - 2025-05-24 18:52:40 2460820.28657 - 2460820.28657 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499414 2025-05-24 18:52:40 2460820.28657 19 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-06-05 04:45:46 - 2025-06-05 04:45:46 2460831.698449 - 2460831.698449 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499415 2025-06-05 04:45:46 2460831.698449 19.06 0.17 ABMag L-GOTO GOTO-N_GOTO-2 180
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-07-08 10:29:27 - 2025-07-08 10:29:27 2460864.9371181 - 2460864.9371181 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501447 2025-07-08 10:29:27 2460864.9371181 18.84 0.06 20.95 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-05-13 10:25:00 - 2025-05-13 10:25:00 2460808.9340278 - 2460808.9340278 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501446 2025-05-13 10:25:00 2460808.9340278 18.88 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-06-10 14:20:30 - 2025-06-14 13:28:32 2460837.09757 - 2460841.06148 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495125 2025-06-14 13:28:32 2460841.06148 18.19 0.132 18.75 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
495124 2025-06-10 14:20:30 2460837.09757 18.76 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
261847 2025-07-08 13:35:02 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 23:39:10.622 +05:29:18.14 2025-07-08 10:29:27.000 18.84 BG-q-BlackGem 1 PSN BGEM J233910.62+052918.1 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025nno_atrep_261847.pdf Finding chart 2025-07-14 10:23:39 BlackGEM_Bot1
260586 2025-06-30 06:44:34 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 23:39:10.594 +05:29:18.56 2025-06-05 04:45:46.080 19.06 L-GOTO Other GOTO25enb GOTO N
258504 2025-06-14 18:07:11 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 23:39:10.608 +05:29:18.30 2025-06-14 13:28:31.872 18.19 orange-ATLAS PSN ATLAS25gde ATLAS 2025TNSTR2213....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21327 2025-06-17 04:39:08 jesper sollerman Jesper Sollerman et al. ZTF SN II 0.01881 1 Add ZTF 2025TNSCR2266....1A
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
21327 2025-06-16 09:39:29 P60 / SEDM Jesper Sollerman ZTF tns_2025nno_2460842.9024175_P60_SEDM_ZTF.txt Object

Comments

TNS
System

Tue, 07/08/2025 - 13:35

Object coordinates updated

Object coordinates updated according to AT-report 261847 of Group BlackGEM
Previous RA, DEC: 23:39:10.608, +05:29:18.30 (354.794198571, +5.48841571429)
Updated RA, DEC: 23:39:10.622, +05:29:18.14 (354.794258, +5.488372)