RA/DEC (2000)
23:09:44.370 -72:00:01.51
347.434875 -72.000419
Type
SN Ia
Redshift
0.029
Discovery ReportClassification Report
Related AstroNotes: 2021-257
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2021-09-26 06:57:36.000
TNS AT
Y
Public
Y
Host Name
ESO 077-IG 004
Host Redshift
0.028917
Discovery Mag
16.5
Filter
g-Sloan
Reporter/s
K. Z. Stanek, C. Christy, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2021zsw - 2021-10-04 01:50:43 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

 ▌ASASSN-3_Paczynski_g
 ▌Gaia_Gaia-photometric_G
 ▌ASASSN-2_Cassius_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
11051 2021-10-04 01:50:43 ESO-NTT / EFOSC2-NTT 300 R. Bruch, J. Anderson C. Gutierrez ePESSTO+ tns_2021zsw_2021-10-04_01-50-43_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2021zsw_2021-10-04_01-50-43_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-Sloan ASASSN-3_Paczynski 2021-09-24 01:26:24 - 2021-09-24 01:26:24 2459481.56 - 2459481.56 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
243853 2021-09-24 01:26:24 2459481.56 17.1 ABMag g-Sloan ASASSN-3_Paczynski [Last non detection]
G-Gaia Gaia_Gaia-photometric 2021-09-05 09:12:58 - 2021-11-14 20:11:02 2459462.884 - 2459533.341 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
257606 2021-11-14 20:11:02 2459533.341 18.02 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
257605 2021-09-05 09:12:58 2459462.884 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
g-Sloan ASASSN-2_Cassius 2021-09-26 06:57:36 - 2021-09-26 06:57:36 2459483.79 - 2459483.79 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
243854 2021-09-26 06:57:36 2459483.79 16.5 ABMag g-Sloan ASASSN-2_Cassius
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
131067 2021-12-07 09:01:21 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 23:09:44.370 -72:00:01.51 2021-11-14 20:11:02.400 18.02 G-Gaia PSN Gaia21flh GaiaAlerts confirmed SN Ia N
124446 2021-09-27 22:32:39 Krzysztof Stanek K. Z. Stanek, C. Christy, for the ASAS-SN team ASAS-SN ASAS-SN 23:09:44.153 -72:00:01.22 2021-09-26 06:57:36.000 16.5 g-Sloan PSN ESO 077-IG 004 ASASSN-21sd ASAS-SN Present in several epochs, possible nuclear source, so could also be a TDE 2021TNSTR3318....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
10997 2021-10-04 16:03:24 ePESSTOplus_Bot1 R. Bruch, J. Anderson, C. Gutierrez, I. Irani on behalf of ePESSTO+ ePESSTO+ SN Ia 0.029 1 ePESSTO+ 2021TNSCR3405....1B
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
11051 2021-10-04 01:50:43 ESO-NTT / EFOSC2-NTT 300 R. Bruch, J. Anderson C. Gutierrez ePESSTO+ tns_2021zsw_2021-10-04_01-50-43_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2021zsw_2021-10-04_01-50-43_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Tue, 12/07/2021 - 08:30

Object coordinates updated

Object coordinates updated according to AT-report 131067 of Group GaiaAlerts
Previous RA, DEC: 23:09:44.153, -72:00:01.22 (347.43397, -72.00034)
Updated RA, DEC: 23:09:44.370, -72:00:01.51 (347.434875, -72.000419)