RA/DEC (2000)
21:12:02.040 -49:15:18.14
318.0085 -49.255039
Type
SN Ia
Redshift
0.02
Discovery ReportClassification Report
Related AstroNotes: 2023-236
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-08-23 04:46:25.824
TNS AT
Y
Public
Y
Discovery Mag
17.511
Filter
cyan-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, S. Srivastav, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng (Queen's University Belfast), A. Aamer (QUB/Birmingham), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2023qov - 2023-08-23 00:00:00 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
▌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_cyan
 ▌ATLAS-STH_ATLAS-03_orange
 ▌Gaia_Gaia-photometric_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
15529 2023-08-23 00:00:00 FTS / FLOYDS-S 1800 Las Cumbres Observatory Estefania Padilla Gonzalez Global SN Project tns_2023qov_2023-08-23_FTS_FLOYDS-S_Global_SN_Project.txt tns_2023qov_2023-08-23_FTS_FLOYDS-S_Global_SN_Project.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2023-08-23 04:46:26 - 2023-08-23 04:46:26 2460179.69891 - 2460179.69891 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
359070 2023-08-23 04:46:26 2460179.69891 17.511 0.045 19.67 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2023-08-19 02:40:42 - 2023-08-19 02:40:42 2460175.6116 - 2460175.6116 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
359069 2023-08-19 02:40:42 2460175.6116 19.28 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
G-Gaia Gaia_Gaia-photometric 2023-05-12 05:44:10 - 2023-09-15 17:47:02 2460076.739 - 2460203.241 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
364954 2023-09-15 17:47:02 2460203.241 14.65 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
364953 2023-05-12 05:44:10 2460076.739 21.5 ABMag G-Gaia Gaia_Gaia-photometric 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
188795 2023-09-21 09:41:08 Gaia_Bot1 S.T. Hodgkin,E. Breedt,A. Delgado et al. GaiaAlerts GaiaAlerts 21:12:02.040 -49:15:18.14 2023-09-15 17:47:02.400 14.65 G-Gaia PSN Gaia23cly GaiaAlerts Confirmed SN Ia N
185843 2023-08-23 13:18:38 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:12:02.036 -49:15:18.07 2023-08-23 04:46:25.824 17.511 cyan-ATLAS PSN ATLAS23rod ATLAS 2023TNSTR2049....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
15445 2023-08-23 18:38:49 Estefania Padilla Gonzalez Estefania Padilla Gonzalez, Joseph Farah, D. Andrew Howell, Curtis McCully, Craig Pellegrino, Megan Newsome, Giacomo Terreran Global SN Project SN Ia 0.02 1 Global SN Project Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find best fits to SNe Ia before maximum light, including SN 2002bo and SN 2004eo about 2 weeks before maximum. The supernova is closest to 0.02 from SNID with Si II 6355 velocity of approximately 18,000 km/s. Adopting the luminosity distance computed from this redshift (87.5 Mpc ) ; the cyan-ATLAS absolute magnitude of the object is -17.2(apparent magnitude 17.5 from ZTF) on the rise. This absolute magnitude and velocity is consistent with an SN Ia near maximum light. 2023TNSCR2054....1G
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
15529 2023-08-23 00:00:00 FTS / FLOYDS-S 1800 Las Cumbres Observatory Estefania Padilla Gonzalez Global SN Project tns_2023qov_2023-08-23_FTS_FLOYDS-S_Global_SN_Project.txt tns_2023qov_2023-08-23_FTS_FLOYDS-S_Global_SN_Project.fits Object

Comments

TNS
System

Thu, 09/21/2023 - 09:30

Object coordinates updated

Object coordinates updated according to AT-report 188795 of Group GaiaAlerts
Previous RA, DEC: 21:12:02.036, -49:15:18.07 (318.008485, -49.2550183333)
Updated RA, DEC: 21:12:02.040, -49:15:18.14 (318.0085, -49.255039)