RA/DEC (2000)
07:48:54.829 +85:45:45.34
117.2284521 +85.7625958
Type
SN II
Redshift
0.0085
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-01-04 14:12:52.128
TNS AT
Y
Public
Y
Discovery Mag
17.369
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 (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_2025bl - 2025-01-14 02:50:10 LT / SPRAT (ZTF)z=
 ▌SN_2025bl - 2025-01-06 00:20:31 LT / SPRAT (OxQUB)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

 ▌P48_ZTF-Cam_i_
 ▌P48_ZTF-Cam_r_
 ▌P48_ZTF-Cam_g_
 ▌ATLAS-MLO_ATLAS-01_orange_
 ▌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
20160 2025-01-14 02:50:10 LT / SPRAT Daniel Perley, Jacob Wise, K-Ryan Hinds, Zoe McGrath Jacob Wise ZTF tns_2025bl_2025-01-14_02-50-10.345_LT_SPRAT_ZTF.spec Object
20041 2025-01-06 00:20:31 LT / SPRAT 1500 Robotic OxQUB tns_2025bl_2025-01-06_00-20-30.692_LT_SPRAT_OxQUB.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-ZTF P48_ZTF-Cam 2025-01-03 04:19:38 - 2025-01-03 04:19:38 2460678.6803009 - 2460678.6803009 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
460957 2025-01-03 04:19:38 2460678.6803009 18.0313 0.11145 ABMag i-ZTF P48_ZTF-Cam
r-ZTF P48_ZTF-Cam 2025-01-05 05:14:57 - 2025-01-05 05:14:57 2460680.7187153 - 2460680.7187153 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
460958 2025-01-05 05:14:57 2460680.7187153 17.0608 0.147792 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-01-02 12:52:20 - 2025-01-02 12:52:20 2460678.0363426 - 2460678.0363426 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
460956 2025-01-02 12:52:20 2460678.0363426 20.0774 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-01-02 11:46:36 - 2025-01-02 11:46:36 2460677.99069 - 2460677.99069 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
460902 2025-01-02 11:46:36 2460677.99069 18.97 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-01-04 14:12:52 - 2025-01-04 14:12:52 2460680.09227 - 2460680.09227 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
460903 2025-01-04 14:12:52 2460680.09227 17.369 0.039 19.27 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
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 Bibcode Unreal Auto classification
240475 2025-01-05 05:24:09 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 07:48:54.829 +85:45:45.34 2025-01-03 04:19:37.997 18.0313 i-ZTF PSN ZTF25aaadqsi ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
240452 2025-01-04 18:03:50 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 07:48:54.977 +85:45:45.30 2025-01-04 14:12:52.128 17.369 orange-ATLAS PSN ATLAS25aew ATLAS 2025TNSTR..44....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
20160 2025-01-14 03:53:19 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), K-Ryan Hinds (LJMU), Zoe McGrath (LJMU) ZTF SN II 0.0085 1 1Add ZTF Spectrum is well-fit by template spectra from previously classified SN II at a redshift of z = 0.0085 ± 0.0015. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022). 2025TNSCR.188....1W
Related files
File Comments Last Modified (UT) Modified By
tns_2025bl_atrep_20160_ZTF.pdf NGSF fits 2025-01-14 03:53:19 Jacob Wise
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
20160 2025-01-14 02:50:10 LT / SPRAT Daniel Perley, Jacob Wise, K-Ryan Hinds, Zoe McGrath Jacob Wise ZTF tns_2025bl_2025-01-14_02-50-10.345_LT_SPRAT_ZTF.spec Object
20041 2025-01-06 15:53:15 Shubham Srivastav S. Srivastav (Oxford), M. Fulton, M. Nicholl, C. R. Angus, K. W. Smith, D. R. Young, T. Moore, S. A. Sim (QUB), S. J. Smartt (Oxford/QUB), J. H. Gillanders, H. F. Stevance (Oxford), T.-W. Chen (NCU) OxQUB SN II 0.01 1 OxQUB Spectrum shows good matches with normal SNe II at pre-maximum epochs. Faint host does not have a spectroscopic redshift, z ~ 0.01 from SNID and NGSF. 2025TNSCR..83....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
20041 2025-01-06 00:20:31 LT / SPRAT 1500 Robotic OxQUB tns_2025bl_2025-01-06_00-20-30.692_LT_SPRAT_OxQUB.txt Object

Comments

TNS
System

Sun, 01/05/2025 - 05:24

Object coordinates updated

Object coordinates updated according to AT-report 240475 of Group ZTF
Previous RA, DEC: 07:48:54.977, +85:45:45.30 (117.22907125, +85.76258375)
Updated RA, DEC: 07:48:54.829, +85:45:45.34 (117.2284521, 85.7625958)