RA/DEC (2000)
22:38:15.590 -24:54:18.12
339.564958 -24.905033
Type
SN Ia
Redshift
0.0808
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-03 08:54:41.184
TNS AT
Y
Public
Y
Discovery Mag
18.448
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_2025jqj - 2025-05-06 17:13:27 FTS / FLOYDS-S (Global SN Project)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
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▌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
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▌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-CHL_ATLAS-04_orange
 ▌BG2_BlackGEM-Cam2_BG-q
   
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
21009 2025-05-06 17:13:27 FTS / FLOYDS-S 3600 LCO Chris Ni Global SN Project tns_2025jqj_2025-05-06_17-13-27_FTS_FLOYDS-S_Global_SN_Project.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-05-02 09:50:47 - 2025-05-03 08:54:41 2460797.91027 - 2460798.87131 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486626 2025-05-03 08:54:41 2460798.87131 18.448 0.142 18.89 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
486625 2025-05-02 09:50:47 2460797.91027 18.91 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-04-28 09:19:45 - 2025-05-03 09:01:00 2460793.8887153 - 2460798.8756944 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487152 2025-05-03 09:01:00 2460798.8756944 18.75 0.06 20.58 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
487151 2025-04-28 09:19:45 2460793.8887153 20.75 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [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
254403 2025-05-07 20:41:07 BlackGEM_Bot1 H. Tranin,F. Stoppa,D. Pieterse et al. BlackGEM BlackGEM 22:38:15.590 -24:54:18.12 2025-05-03 09:01:00.000 18.75 BG-q-BlackGem PSN BGEM J223815.59-245418.1 BlackGEM N
253963 2025-05-04 21:38:40 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 22:38:15.603 -24:54:18.18 2025-05-03 08:54:41.184 18.448 orange-ATLAS PSN ATLAS25ept ATLAS 2025TNSTR1657....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
21009 2025-05-09 18:26:53 Yuan Qi Ni Chris Ni (KITP/LCO), Moira Andrews, Joseph Farah, Kathryn Wynn, D. Andrew Howell, Curtis McCully Global SN Project SN Ia 0.0808 1 Global SN Project We report the classification of SN 2025jqj as SN Ia. The spectrum shows a best match to Ia norm SN 2007F from SNID (Blondin & Tonry 2007, ApJ, 666, 1024) 2 days before peak. The object redshift is acquired from the nearby host of WISEA J223815.48-245418.1 (z=0.080800, value from NED). Additional follow-up is encouraged. 2025TNSCR1733....1N
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
21009 2025-05-06 17:13:27 FTS / FLOYDS-S 3600 LCO Chris Ni Global SN Project tns_2025jqj_2025-05-06_17-13-27_FTS_FLOYDS-S_Global_SN_Project.txt Object

Comments

TNS
System

Wed, 05/07/2025 - 20:41

Object coordinates updated

Object coordinates updated according to AT-report 254403 of Group BlackGEM
Previous RA, DEC: 22:38:15.603, -24:54:18.18 (339.565012143, -24.90505)
Updated RA, DEC: 22:38:15.590, -24:54:18.12 (339.564958, -24.905033)