RA/DEC (2000)
13:05:23.761 +29:30:34.67
196.349005565 +29.5096292514
Type
SN Ia
Redshift
0.020165
Related AstroNotes: 2021-69
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2021-02-16 11:48:28.800
TNS AT
Y
Public
Y
Discovery Mag
18.244
Filter
cyan-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_2021dch - 2021-02-22 06:24:07 P60 / SEDM (ZTF)z=
 SN_2021dch - 2021-02-22 00:00:00 UH88 / SNIFS (SCAT)z=
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Show Tellurics 
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-MLO_ATLAS-01_cyan
 PS1_GPC1_i
   
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
9031 2021-02-22 06:24:07 P60 / SEDM 2400 SEDmRobot auto ZTF tns_2021dch_2021-02-22_06-24-06.689664_P60_SEDM_ZTF.ascii Object
9014 2021-02-22 00:00:00 UH88 / SNIFS 2700 Ashall Ashall SCAT tns_2021dch_2021-02-22.00_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2021-02-13 08:29:41 - 2021-02-17 08:54:52 2459258.8539468 - 2459262.8714352 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
194494 2021-02-17 08:54:52 2459262.8714352 17.8975 0.056772 20.3093 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
193142 2021-02-17 08:54:14 2459262.871 17.9 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
194493 2021-02-13 08:29:41 2459258.8539468 20.1172 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
g-ZTF P48_ZTF-Cam 2021-02-13 09:08:38 - 2021-02-17 12:27:22 2459258.881 - 2459263.019 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
193143 2021-02-17 12:27:22 2459263.019 17.95 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
193141 2021-02-13 09:08:38 2459258.881 20.41 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
cyan-ATLAS ATLAS-MLO_ATLAS-01 2021-02-12 15:00:00 - 2021-02-16 11:48:29 2459258.125 - 2459261.992 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
193043 2021-02-16 11:48:29 2459261.992 18.244 0.062 19.91 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
193042 2021-02-12 15:00:00 2459258.125 19.85 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
i-P1 PS1_GPC1 2021-02-25 12:53:17 - 2021-02-25 12:53:17 2459271.037 - 2459271.037 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
194960 2021-02-25 12:53:17 2459271.037 16.77 0.02 20.7 ABMag i-P1 PS1_GPC1 45 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 ADS Bibcode Unreal Auto classification
100601 2021-02-28 01:14:05 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 13:05:23.761 +29:30:34.67 2021-02-25 12:53:16.800 16.77 i-P1 PSN PS21akz Pan-STARRS N
100348 2021-02-23 20:16:36 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 13:05:23.768 +29:30:34.63 2021-02-17 08:54:52.001 17.8975 r-ZTF PSN ZTF21aalinof ZTF Early SN candidate classified by Fink using the public ZTF stream. Object data at http://134.158.75.151:24000/ZTF21aalinof N
99762 2021-02-17 13:59:49 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 13:05:23.770 +29:30:34.55 2021-02-17 08:54:14.400 17.9 r-ZTF PSN ZTF21aalinof ZTF N
99691 2021-02-16 18:12:51 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 13:05:23.747 +29:30:34.69 2021-02-16 11:48:28.800 18.244 cyan-ATLAS PSN ATLAS21ghj ATLAS 2021TNSTR.481....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
9021 2021-02-22 18:11:47 ZTF_Bot1 A. Dahiwale, C. Fremling(Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.020165 1 ZTF 2021TNSCR.569....1D
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
9031 2021-02-22 06:24:07 P60 / SEDM 2400 SEDmRobot auto ZTF tns_2021dch_2021-02-22_06-24-06.689664_P60_SEDM_ZTF.ascii Object
9004 2021-02-22 12:14:56 chris ashall chris ashall SCAT SN Ia 0.02 1 SCAT The spectrum of 2021dch is consistent with being a SNe Ia a few days before maximum light. Astrodash fits provide the best fit between -6 to -2 days from maximum light. 2021TNSCR.567....1A
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
9014 2021-02-22 00:00:00 UH88 / SNIFS 2700 Ashall Ashall SCAT tns_2021dch_2021-02-22.00_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 100601 of Group Pan-STARRS1
Previous RA, DEC: 13:05:23.768, +29:30:34.63 (196.349032625, +29.50962035)
Updated RA, DEC: 13:05:23.761, +29:30:34.67 (196.349005565, 29.5096292514)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 100348 of Group ZTF
Previous RA, DEC: 13:05:23.770, +29:30:34.55 (196.3490398, +29.5095968)
Updated RA, DEC: 13:05:23.768, +29:30:34.63 (196.349032625, 29.50962035)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 99762 of Group ZTF
Previous RA, DEC: 13:05:23.747, +29:30:34.69 (196.348947273, +29.5096372727)
Updated RA, DEC: 13:05:23.770, +29:30:34.55 (196.3490398, 29.5095968)