RA/DEC (2000)
21:48:06.070 -50:33:49.18
327.025292 -50.563661
Type
SN Ia
Redshift
0.017251
Discovery ReportClassification Report
Related AstroNotes: 2023-234
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-08-19 02:41:21.120
TNS AT
Y
Public
Y
Discovery Mag
16.728
Filter
orange-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_2023pwl - 2023-08-20 20:14:00 Other / Other (MeerLICHT)z=
 ▌SN_2023pwl - 2023-08-20 13:27:30 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-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
15776 2023-08-20 20:14:00 Other / Other 1500 Orapeleng Mogawana Orapeleng Mogawana MeerLICHT tns_2023pwl_2023-08-20_20-14-00.021_Other_Other_MeerLICHT.dat Object The spectrum was taken with the SAAO's 1-m Lesedi-MOOKODI low-resolution spectrograph and imager using a 2" slit and an average spectral resolution of R = 374.4.
15517 2023-08-20 13:27:30 FTS / FLOYDS-S 1800 Las Cumbres Observatory Megan Newsome Global SN Project tns_2023pwl_2023-08-20_13-27-30_FTS_FLOYDS-S_Global_SN_Project.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-STH_ATLAS-03 2023-08-16 00:40:52 - 2023-08-19 02:41:21 2460172.52838 - 2460175.61205 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
358291 2023-08-19 02:41:21 2460175.61205 16.728 0.027 19.28 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
358290 2023-08-16 00:40:52 2460172.52838 19.49 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
G-Gaia Gaia_Gaia-photometric 2023-05-13 17:44:10 - 2023-09-15 11:41:17 2460078.239 - 2460202.987 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
364676 2023-09-15 11:41:17 2460202.987 17.23 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
364675 2023-05-13 17:44:10 2460078.239 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 Bibcode Unreal Auto classification
188643 2023-09-20 08:58:25 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, T. Wevers, A. Yoldas (IoA Cambridge), N. Ihanec, K. Kruszyńska, K.A. Rybicki, Ł. Wyrzykowski (Warsaw University Astronomical Observatory), Z. Kostrzewa-Rutkowska (Leiden Observatory), D. Eappachen (SRON/RU), G. Marton (Konkoly Observatory), on behalf of the Gaia Alerts team GaiaAlerts GaiaAlerts 21:48:06.070 -50:33:49.18 2023-09-15 11:41:16.800 17.23 G-Gaia PSN Gaia23ckz GaiaAlerts confirmed SN Ia N
185141 2023-08-19 11:14:56 ATLAS_Bot1 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) ATLAS ATLAS 21:48:06.075 -50:33:48.99 2023-08-19 02:41:21.120 16.728 orange-ATLAS PSN ATLAS23rjz ATLAS 2023TNSTR2020....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
15691 2023-10-05 09:44:01 Orapeleng Mogawana Orapeleng Mogawana(UCT/SAAO), Paul Groot (Radboud/UCT/SAAO) MeerLICHT SN Ia 0.017251 1 1Add BlackGEM, MeerLICHT Spectral template matching analysis using SNID (Blondin & Tonry 2007) suggests this is a normal Type Ia supernova, observed ~8 days before maximum brightness. The reported redshift is adopted from the associated host galaxy NGC 7124. 2023TNSCR2495....1M
Related files
File Comments Last Modified (UT) Modified By
tns_2023pwl_classrep_15691_MeerLICHT.ps 2023-10-05 09:44:01 Orapeleng Mogawana
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
15776 2023-08-20 20:14:00 Other / Other 1500 Orapeleng Mogawana Orapeleng Mogawana MeerLICHT tns_2023pwl_2023-08-20_20-14-00.021_Other_Other_MeerLICHT.dat Object The spectrum was taken with the SAAO's 1-m Lesedi-MOOKODI low-resolution spectrograph and imager using a 2" slit and an average spectral resolution of R = 374.4.
15433 2023-08-21 03:15:55 Megan Newsome Megan Newsome (LCO/UCSB), Craig Pellegrino, Joseph Farah, D. Andrew Howell, Curtis McCully, Estefania Padilla Gonzalez, Giacomo Terreran Global SN Project SN Ia 0.017251 1 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 2006lf 5 days after peak. The supernova is closest to NGC 7124 (z = 0.017251, 2006HIPAS.C...0000:, value from NED). Adopting this redshift we measure a Si II 6355 velocity of approximately 11,000 km/s. This velocity is consistent with an SN Ia prior to maximum light, and further follow-up is encouraged. 2023TNSCR2033....1N
Related files
File Comments Last Modified (UT) Modified By
tns_2023pwl_classrep_15433_Global_SN_Project.ps SNID fit to SN2006lf, a type Ia at z=0.18, at -5d from peak. 2023-08-21 03:15:55 Megan Newsome
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
15517 2023-08-20 13:27:30 FTS / FLOYDS-S 1800 Las Cumbres Observatory Megan Newsome Global SN Project tns_2023pwl_2023-08-20_13-27-30_FTS_FLOYDS-S_Global_SN_Project.ascii Object

Comments

TNS
System

Wed, 09/20/2023 - 08:30

Object coordinates updated

Object coordinates updated according to AT-report 188643 of Group GaiaAlerts
Previous RA, DEC: 21:48:06.075, -50:33:48.99 (327.025312, -50.5636093333)
Updated RA, DEC: 21:48:06.070, -50:33:49.18 (327.025292, -50.563661)