RA/DEC (2000)
09:59:00.856 +25:12:08.16
149.7535667 +25.2022654
Type
SN Ia
Redshift
0.05205
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-25 06:18:30.240
TNS AT
Y
Public
Y
Discovery Mag
18.425
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)

Spectra

 SN_2025mbj - 2025-05-30 07:47:23 UH88 / SNIFS (SCAT)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
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Show N II at z=vexp= km/s
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Show [O I] at z=vexp= km/s
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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 Tellurics 
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Show WR-WN at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 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
21185 2025-05-30 07:47:23 UH88 / SNIFS 1800 Hinkle SCAT tns_2025mbj_2025-05-30_07-47-23_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2025-05-15 07:23:52 - 2025-05-15 07:23:52 2460810.8082407 - 2460810.8082407 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492943 2025-05-15 07:23:52 2460810.8082407 19.2958 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-05-21 05:27:37 - 2025-05-31 06:07:52 2460816.7275116 - 2460826.755463 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492945 2025-05-31 06:07:52 2460826.755463 17.7706 0.112219 ABMag g-ZTF P48_ZTF-Cam
492944 2025-05-21 05:27:37 2460816.7275116 19.1987 0.158237 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-05-24 06:37:23 - 2025-05-25 06:18:30 2460819.77596 - 2460820.76285 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491697 2025-05-25 06:18:30 2460820.76285 18.425 0.103 19.43 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
491696 2025-05-24 06:37:23 2460819.77596 19.36 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
257398 2025-05-31 06:23:07 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 09:59:00.856 +25:12:08.16 2025-05-21 05:27:37.002 19.1987 g-ZTF PSN ZTF25aaqxece ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
256833 2025-05-26 16:21:20 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 09:59:00.838 +25:12:08.31 2025-05-25 06:18:30.240 18.425 orange-ATLAS PSN ATLAS25fot ATLAS 2025TNSTR1967....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
21185 2025-05-30 08:42:45 Jason Hinkle Jason Hinkle (UH/IfA) on behalf of SCAT SCAT SN Ia 0.05205 1 SCAT The redshift is from the archival SDSS host spectrum. Cross-correlation with SNID (Blondin & Tonry 2007) gives matches to normal SNe Ia at this redshift. 2025TNSCR2042....1H
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
21185 2025-05-30 07:47:23 UH88 / SNIFS 1800 Hinkle SCAT tns_2025mbj_2025-05-30_07-47-23_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 257398 of Group ZTF
Previous RA, DEC: 09:59:00.838, +25:12:08.31 (149.75349125, +25.2023075)
Updated RA, DEC: 09:59:00.856, +25:12:08.16 (149.7535667, +25.2022654)