RA/DEC (2000)
09:09:17.173 -18:37:05.53
137.3215522 -18.618203
Type
SN Ia
Redshift
0.039
Discovery ReportClassification Report
Related AstroNotes: 2025-135
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-04-21 02:22:28.416
TNS AT
Y
Public
Y
Discovery Mag
18.74
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_2025hyv - 2025-05-03 02:34:34 ESO-NTT / EFOSC2-NTT (ePESSTO+)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-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_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
20961 2025-05-03 02:34:34 ESO-NTT / EFOSC2-NTT 780 B. Ayala, C.Casanueva R. Dastidar, A. Gangopadhyay ePESSTO+ tns_2025hyv_2025-05-03_02-34-34_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025hyv_2025-05-03_02-34-34_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-20 04:33:06 - 2025-04-21 02:22:28 2460785.68965 - 2460786.59894 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
483200 2025-04-21 02:22:28 2460786.59894 18.74 0.156 19.12 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
483199 2025-04-20 04:33:06 2460785.68965 17.83 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-04-30 04:33:50 - 2025-04-30 04:33:50 2460795.690162 - 2460795.690162 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484918 2025-04-30 04:33:50 2460795.690162 17.8893 0.0562688 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-04-16 04:12:16 - 2025-04-21 03:48:02 2460781.6751852 - 2460786.6583565 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484917 2025-04-21 03:48:02 2460786.6583565 18.7847 0.107151 ABMag g-ZTF P48_ZTF-Cam
484916 2025-04-16 04:12:16 2460781.6751852 20.075 ABMag g-ZTF P48_ZTF-Cam [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
253071 2025-04-30 05:45:36 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 09:09:17.173 -18:37:05.53 2025-04-21 03:48:02.001 18.7847 g-ZTF PSN ZTF25aanmsrb ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
252211 2025-04-21 20:12:23 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 09:09:17.176 -18:37:05.36 2025-04-21 02:22:28.416 18.74 orange-ATLAS PSN ATLAS25dzu ATLAS 2025TNSTR1466....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
20961 2025-05-03 16:24:53 ePESSTOplus_Bot1 B. Ayala, C.Casanueva, R. Dastidar, A. Gangopadhyay, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.039 1 Add ePESSTO+ 2025TNSCR1649....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
20961 2025-05-03 02:34:34 ESO-NTT / EFOSC2-NTT 780 B. Ayala, C.Casanueva R. Dastidar, A. Gangopadhyay ePESSTO+ tns_2025hyv_2025-05-03_02-34-34_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025hyv_2025-05-03_02-34-34_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Wed, 04/30/2025 - 05:45

Object coordinates updated

Object coordinates updated according to AT-report 253071 of Group ZTF
Previous RA, DEC: 09:09:17.176, -18:37:05.36 (137.321566, -18.618156)
Updated RA, DEC: 09:09:17.173, -18:37:05.53 (137.3215522, -18.618203)