RA/DEC (2000)
09:31:57.282 +33:12:34.71
142.98867596 +33.209641059
Type
SN II
Redshift
0.042335
Discovery ReportClassification Report
Related AstroNotes: 2020-51
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2020-02-21 05:00:07.000
TNS AT
Y
Public
Y
Host Name
WISEA J093157.88+331241.0
Host Redshift
0.042335
Discovery Mag
19.7244
Filter
r-ZTF
Reporter/s
F. Forster, G. Pignata, F.E. Bauer, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, F.E. Bauer, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2020dbd - 2020-02-25 03:32:45 VLT-UT1 / FORS2 (adH0cc)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

 ▌P48_ZTF-Cam_r
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_i
 ▌PS1_GPC1_r
   
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
6311 2020-02-25 03:32:45 VLT-UT1 / FORS2 1200 Service S. Taubenberger adH0cc tns_2020dbd_2020-02-25_03-32-45_VLT-UT1_FORS2_adH0cc.ascii tns_2020dbd_2020-02-25_03-32-45_VLT-UT1_FORS2_adH0cc.fits Object Quick-reduction spectrum, corrected for telluric absorption.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2020-02-20 06:16:17 - 2020-02-24 05:09:05 2458899.7613079 - 2458903.7146412 8
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
123265 2020-02-24 05:09:05 2458903.7146412 18.86 0.07 20.51 ABMag r-ZTF P48_ZTF-Cam 30
122191 2020-02-24 05:09:04 2458903.7146412 18.86 0.07 20.51 ABMag r-ZTF P48_ZTF-Cam 30
122190 2020-02-21 05:00:08 2458900.7084259 19.72 0.14 20.52 ABMag r-ZTF P48_ZTF-Cam 30
123264 2020-02-21 05:00:08 2458900.7084259 19.72 0.14 20.52 ABMag r-ZTF P48_ZTF-Cam 30
121749 2020-02-21 05:00:07 2458900.7084144 19.7244 0.143438 20.5241 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
122189 2020-02-20 06:16:18 2458899.7613194 20.7193 ABMag r-ZTF P48_ZTF-Cam 30 [Last non detection]
123263 2020-02-20 06:16:18 2458899.7613194 20.7193 ABMag r-ZTF P48_ZTF-Cam 30 [Last non detection]
121748 2020-02-20 06:16:17 2458899.7613079 20.7193 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2020-02-06 09:14:24 - 2020-02-22 10:22:04 2458885.885 - 2458901.9319907 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
121937 2020-02-22 10:22:04 2458901.9319907 19.157 0.131 19.55 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
121936 2020-02-06 09:14:24 2458885.885 18.96 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
i-P1 PS1_GPC1 2020-03-11 08:19:52 - 2020-03-11 08:19:52 2458919.84713 - 2458919.84713 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477288 2020-03-11 08:19:52 2458919.84713 17.82 0.04 20.7 ABMag i-P1 PS1_GPC1 45 Robot
r-P1 PS1_GPC1 2020-03-10 12:10:05 - 2020-03-10 12:10:05 2458919.007 - 2458919.007 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
124988 2020-03-10 12:10:05 2458919.007 17.77 0.04 20.6 ABMag r-P1 PS1_GPC1 27 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
249086 2025-03-20 22:18:50 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 09:31:57.282 +33:12:34.71 2020-03-11 08:19:52.032 17.82 i-P1 PSN PS20abg Pan-STARRS This transient was discovered with the help of citizen science project Supernova Hunters run by Zooniverse. The candidate was identified by volunteers including Sovan acharya, Marvin W. Huddleston and Meryl Goulbourne N
63960 2020-03-10 17:20:12 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 09:31:57.283 +33:12:34.80 2020-03-10 12:10:04.800 17.77 r-P1 PSN PS20abg Pan-STARRS N
63125 2020-02-28 18:12:56 ZTF_AMPEL_COMPLETE J. Nordin, V. Brinnel, M. Giomi et al. ZTF ZTF 09:31:57.265 +33:12:34.75 2020-02-21 05:00:08.352 19.72 r-ZTF PSN ZTF20aapjiwl ZTF See arXiv:1904.05922 for selection criteria. N
62618 2020-02-24 06:17:40 ZTF_AMPEL_NEW J. Nordin, V. Brinnel, M. Giomi et al. ZTF ZTF 09:31:57.264 +33:12:34.74 2020-02-21 05:00:08.000 19.72 r-ZTF PSN ZTF20aapjiwl ZTF See arXiv:1904.05922 for selection criteria. N
62503 2020-02-22 15:51:48 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 09:31:57.288 +33:12:34.64 2020-02-22 10:22:04.000 19.157 orange-ATLAS PSN ATLAS20fyd ATLAS N
62413 2020-02-21 20:08:57 ALeRCE F. Forster, G. Pignata, F.E. Bauer et al. ALeRCE ZTF 09:31:57.272 +33:12:34.67 2020-02-21 05:00:07.000 19.7244 r-ZTF PSN WISEA J093157.88+331241.0 ZTF20aapjiwl ZTF Early SN candidate (r-rise > 1.05+-0.15 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aapjiwl 2020TNSTR.577....1F N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
6303 2020-02-25 19:57:28 Christian Vogl B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Floers, S. Taubenberger, W. Hillebrandt, S. Suyu (MPA Garching), S. J. Smartt, M. Dobson (QUB), R. Kotak (Turku), R. Bruch, A. Gal-Yam (Weizmann) adH0cc SN II 0.042335 1 adH0cc An optical spectrum of SN 2020dbd, obtained on the night of 2020 February 24 with the ESO Very Large Telescope UT1 equipped with the FORS2 spectrograph and grism 300V, shows a blue continuum with indications of broad P-cygni features of H-alpha and He I 5876, indicative of a young Type II supernova. From the photometric constraints, we estimate a phase about 6d after explosion. 2020TNSCR.625....1L
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
6311 2020-02-25 03:32:45 VLT-UT1 / FORS2 1200 Service S. Taubenberger adH0cc tns_2020dbd_2020-02-25_03-32-45_VLT-UT1_FORS2_adH0cc.ascii tns_2020dbd_2020-02-25_03-32-45_VLT-UT1_FORS2_adH0cc.fits Object Quick-reduction spectrum, corrected for telluric absorption.

Comments

TNS
System

Thu, 03/20/2025 - 22:18

Object coordinates updated

Object coordinates updated according to AT-report 249086 of Group Pan-STARRS
Previous RA, DEC: 09:31:57.283, +33:12:34.80 (142.988677766, +33.2096664058)
Updated RA, DEC: 09:31:57.282, +33:12:34.71 (142.98867596, 33.209641059)

TNS
System

Tue, 03/10/2020 - 16:30

Object coordinates updated

Object coordinates updated according to AT-report 63960 of Group Pan-STARRS1
Previous RA, DEC: 09:31:57.265, +33:12:34.75 (142.988605975, +33.20965195)
Updated RA, DEC: 09:31:57.283, +33:12:34.80 (142.988677766, 33.2096664058)

TNS
System

Fri, 02/28/2020 - 17:30

Object coordinates updated

Object coordinates updated according to AT-report 63125 of Group ZTF
Previous RA, DEC: 09:31:57.264, +33:12:34.74 (142.9886018, +33.2096493)
Updated RA, DEC: 09:31:57.265, +33:12:34.75 (142.988605975, 33.20965195)

TNS
System

Mon, 02/24/2020 - 05:30

Object coordinates updated

Object coordinates updated according to AT-report 62618 of Group ZTF
Previous RA, DEC: 09:31:57.272, +33:12:34.67 (142.9886343, +33.2096317)
Updated RA, DEC: 09:31:57.264, +33:12:34.74 (142.9886018, 33.2096493)