RA/DEC (2000)
04:42:37.960 -53:16:01.13
70.658167 -53.266981
Type
SN Ia
Redshift
0.041
Discovery ReportClassification Report
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-10-08 01:40:48.000
TNS AT
Y
Public
Y
Host Name
2MASX J04423745-5316010
Discovery Mag
17.4
Filter
g-Sloan
Reporter/s
K. Z. Stanek, P. Vallely, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018hdo - 2018-10-09 16:08:23 FTS / FLOYDS-S (Global SN Project)z=
▌Show H at z=vexp= km/s
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▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
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▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
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▌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
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▌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

 ▌ASASSN-5_Payne-Gaposchkin_g
 ▌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
2868 2018-10-09 16:08:23 FTS / FLOYDS-S 2700 Las Cumbres Observatory Daichi Hiramatsu Global SN Project tns_2018hdo_2018-10-09_16-08-23_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2018hdo_2018-10-09_16-08-23_FTS_FLOYDS-S_Global_SN_Project.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-Sloan ASASSN-5_Payne-Gaposchkin 2018-09-29 01:55:12 - 2018-10-08 01:40:48 2458390.58 - 2458399.57 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
37261 2018-10-08 01:40:48 2458399.57 17.4 ABMag g-Sloan ASASSN-5_Payne-Gaposchkin
37260 2018-09-29 01:55:12 2458390.58 17.7 ABMag g-Sloan ASASSN-5_Payne-Gaposchkin [Last non detection]
G-Gaia Gaia_Gaia-photometric 2018-09-20 20:54:14 - 2018-10-22 02:39:50 2458382.3709954 - 2458413.6109954 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
37905 2018-10-22 02:39:50 2458413.6109954 18.3 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
37904 2018-09-20 20:54:14 2458382.3709954 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
23703 2018-10-23 21:14:46 Gaia_Bot1 A. Delgado,D. Harrison,S. Hodgkin et al. GaiaAlerts GaiaAlerts 04:42:37.960 -53:16:01.13 2018-10-22 02:39:50.000 18.3 G-Gaia PSN Gaia18dcx GaiaAlerts confirmed SN Ia N
23381 2018-10-08 10:23:14 Krzysztof Stanek K. Z. Stanek,P. Vallely,for the ASAS-SN team et al. ASAS-SN ASAS-SN 04:42:37.793 -53:16:02.24 2018-10-08 01:40:48.000 17.4 g-Sloan PSN 2MASX J04423745-5316010 ASASSN-18xf ASAS-SN In several epochs, unknown redshift host galaxy, most likely in TESS Sector 3 field of view 2018TNSTR1527....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
2861 2018-10-09 21:25:43 Daichi Hiramatsu Daichi Hiramatsu, Iair Arcavi, Jamison Burke, D. Andrew Howell, Curtis McCully, Stefano Valenti Global SN Project SN Ia 0.041 1 1 Global SN Project Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find good fits to several Type Ia supernovae around the maximum light at the redshift of 0.041. At the redshift of 0.041, corresponding to the distance modulus of 36.26, the absolute magnitude in V-band taken at 2018-10-08 23:48:10 is -19.04 mag which is consistent with the Ia classification and its phase. We measure the SiII velocity of 11,000 km/s from the absorption lines. 2018TNSCR1537....1H
Related files
File Comments Last Modified (UT) Modified By
tns_2018hdo_classrep_2861_Global_SN_Project.pdf Superfit fit 2018-10-09 21:25:43 Daichi Hiramatsu
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
2868 2018-10-09 16:08:23 FTS / FLOYDS-S 2700 Las Cumbres Observatory Daichi Hiramatsu Global SN Project tns_2018hdo_2018-10-09_16-08-23_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2018hdo_2018-10-09_16-08-23_FTS_FLOYDS-S_Global_SN_Project.fits Object

Comments

TNS
System

Sun, 06/23/2019 - 10:43

Object coordinates updated

Object coordinates updated according to AT-report 23703 of Group GaiaAlerts
Previous RA, DEC: 04:42:37.793, -53:16:02.24 (70.65747, -53.26729)
Updated RA, DEC: 04:42:37.960, -53:16:01.13 (70.658167, -53.266981)