RA/DEC (2000)
00:56:06.282 +24:07:31.18
14.0261733333 +24.1253266667
Type
SN Ia
Redshift
0.016648
Related AstroNotes: 2021-74
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2021-02-22 05:24:00.000
TNS AT
Y
Public
Y
Discovery Mag
15.838
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)

Spectra

 SN_2021dnn - 2021-02-23 18:07:00 Other / Other (None)z=
Show H at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ATLAS-MLO_ATLAS-01_cyan
 ATLAS-HKO_ATLAS-02_orange
   
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
9056 2021-02-23 18:07:00 Other / Other 2400 Claudio Balcon (Belluno) Claudio Balcon None tns_2021dnn_2021-02-23_18-07-00_Other_Other.dat tns_2021dnn_2021-02-23_18-07-00_Other_Other.fit Object I obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-MLO_ATLAS-01 2021-02-12 05:58:34 - 2021-02-12 05:58:34 2459257.749 - 2459257.749 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
194097 2021-02-12 05:58:34 2459257.749 19.52 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2021-02-22 05:24:00 - 2021-02-22 05:24:00 2459267.725 - 2459267.725 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
194098 2021-02-22 05:24:00 2459267.725 15.838 0.031 18.62 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
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
100163 2021-02-22 12:08:10 ATLAS_Bot1 J. Tonry,L. Denneau,A. Heinze et al. ATLAS ATLAS 00:56:06.282 +24:07:31.18 2021-02-22 05:24:00.000 15.838 orange-ATLAS PSN ATLAS21grj ATLAS 2021TNSTR.549....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
9046 2021-02-23 18:47:16 Claudio Balcon Claudio Balcon None SN Ia 0.016648 1 GELATO (Harutyunyan et al., 2008, A&A, 488, 383) suggests that this SN is similar to that of Type la at the redshift of the host galaxy (z=0.016648; value from NED). 2021TNSCR.585....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
9056 2021-02-23 18:07:00 Other / Other 2400 Claudio Balcon (Belluno) Claudio Balcon None tns_2021dnn_2021-02-23_18-07-00_Other_Other.dat tns_2021dnn_2021-02-23_18-07-00_Other_Other.fit Object I obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.

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