RA/DEC (2000)
22:11:49.200 +38:42:01.50
332.955 +38.700417
Type
SN Ia-91bg-like
Redshift
0.0217
Discovery ReportClassification Report
Reporting Group
POSS
Discovering Data Source
POSS
Discovery Date
2018-09-20 06:17:28.000
TNS AT
Y
Public
Y
Host Name
NGC7228
Host Redshift
0.021748
Discovery Mag
18.6
Filter
Clear-
Reporter/s
L. Cox, R. Gagliano, R. Post, E. Weinberg, J. Newton, T. Puckett
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018gro - 2018-09-21 22:02:27 LT / SPRAT (None)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

 ▌Other_Other_Clear
   
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
2807 2018-09-21 22:02:27 LT / SPRAT 800 S. Prentice None tns_2018gro_2018-09-21_22-02-27_LT_SPRAT.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- Other_Other 2018-08-15 05:36:36 - 2018-09-20 06:17:28 2458345.73375 - 2458381.7621412 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
36388 2018-09-20 06:17:28 2458381.7621412 18.6 0.3 20 ABMag Clear- Other_Other 24" CDK with Apogee U230 CCD at Sierra Remote Observatories, CA USA
36387 2018-08-15 05:36:36 2458345.73375 20 ABMag Clear- Other_Other 30 R. Post [Last non detection] 24" CDK with Apogee U230 CCD at Sierra Remote Observatories, CA USA
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
22975 2018-09-20 20:23:31 Richard S Post L. Cox,R. Gagliano,R. Post et al. POSS POSS 22:11:49.200 +38:42:01.50 2018-09-20 06:17:28.000 18.6 Clear- PSN NGC7228 POSS 2018TNSTR1420....1C N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
2800 2018-09-23 12:01:05 Simon Prentice S. J. Prentice (QUB) None SN Ia-91bg-like 0.0217 1 DASH (https://github.com/daniel-muthukrishna/astrodash) matches the object to SNe Ia less than a week before maximum light. The best match is 91bg-like SN 1999da. 2018TNSCR1437....1P
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
2807 2018-09-21 22:02:27 LT / SPRAT 800 S. Prentice None tns_2018gro_2018-09-21_22-02-27_LT_SPRAT.txt Object

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