RA/DEC (2000)
01:54:05.886 +07:08:58.76
28.5245243783 +7.14965542503
Type
SN Ia
Redshift
0.073
Discovery ReportClassification Report
Related AstroNotes: 2020-224
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2020-11-01 07:23:55.003
TNS AT
Y
Public
Y
Host Name
SDSS J015405.95+070859.8
Host Redshift
0.051
Discovery Mag
19.6157
Filter
g-ZTF
Reporter/s
F. Forster, F.E. Bauer, A. Munoz-Arancibia, L. Hernandez-Garcia, G. Pignata, L. Galbany, G. Pignata, E. Camacho, J. Silva-Farfan, A. Mourao, 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, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2020yyg - 2020-11-09 04:01:04 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2020yyg - 2020-11-08 19:24:00 Ekar / AFOSC (Padova-Asiago)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

 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_w
   
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
7966 2020-11-09 04:01:04 ESO-NTT / EFOSC2-NTT 899 N.Ihanec, M.Gromadzki S.Brennan, M.Fraser, R.Byrne ePESSTO+ tns_2020yyg_2020-11-09_04-01-04_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2020yyg_2020-11-09_04-01-04_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
7957 2020-11-08 19:24:00 Ekar / AFOSC 2700 Tomasella Tomasella Padova-Asiago tns_2020yyg_2020-11-08_19-24-00_Ekar_AFOSC_Padova-Asiago.dat tns_2020yyg_2020-11-08_19-24-00_Ekar_AFOSC_Padova-Asiago.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2021-01-06 06:48:58 - 2021-01-06 06:48:58 2459220.784 - 2459220.784 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
193114 2021-01-06 06:48:58 2459220.784 20.3 0.15 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2020-11-05 05:08:46 - 2020-11-05 05:08:46 2459158.7144213 - 2459158.7144213 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
169695 2020-11-05 05:08:46 2459158.7144213 18.8917 0.099354 19.7323 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
170235 2020-11-05 05:08:46 2459158.7144213 18.89 0.1 19.73 ABMag r-ZTF P48_ZTF-Cam 30
g-ZTF P48_ZTF-Cam 2020-10-22 08:37:44 - 2020-11-05 06:53:06 2459144.859537 - 2459158.786875 6
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
169696 2020-11-05 06:53:06 2459158.786875 18.7815 0.09924 19.8501 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
170236 2020-11-05 06:53:06 2459158.786875 18.78 0.1 19.85 ABMag g-ZTF P48_ZTF-Cam 30
169694 2020-11-03 08:18:44 2459156.8463426 19.0032 0.204358 18.9052 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
169693 2020-11-01 07:23:55 2459154.8082755 19.6157 0.383355 19.1362 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
169692 2020-10-28 09:29:17 2459150.8953356 19.4528 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
170234 2020-10-22 08:37:44 2459144.859537 21.0303 ABMag g-ZTF P48_ZTF-Cam 30 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2020-11-03 10:32:10 - 2020-11-04 10:23:31 2459156.939 - 2459157.933 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
170013 2020-11-04 10:23:31 2459157.933 18.793 0.128 19.42 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
170012 2020-11-03 10:32:10 2459156.939 19.21 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
w-P1 PS1_GPC1 2020-12-06 08:06:43 - 2020-12-06 08:06:43 2459189.838 - 2459189.838 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
177413 2020-12-06 08:06:43 2459189.838 18.84 0.03 22 ABMag w-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
99740 2021-02-17 10:54:57 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 01:54:05.886 +07:08:58.76 2021-01-06 06:48:57.600 20.3 w-P1 PSN PS20lzd Pan-STARRS N
92086 2020-12-09 12:57:52 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 01:54:05.887 +07:08:58.77 2020-12-06 08:06:43.200 18.84 w-P1 PSN PS20lzd 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 Henryk Krawczyk, Meryl Goulbourne and Lily Lau W.W. N
88725 2020-11-11 07:01:55 ZTF_AMPEL_COMPLETE J. Nordin, V. Brinnel, M. Giomi et al. ZTF ZTF 01:54:05.884 +07:08:58.73 2020-11-05 05:08:45.888 18.89 r-ZTF PSN ZTF20acowddo ZTF See arXiv:1904.05922 for selection criteria. N
88614 2020-11-09 02:06:40 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 01:54:05.878 +07:08:58.82 2020-11-04 10:23:31.200 18.793 orange-ATLAS PSN ATLAS20bffa ATLAS N
88438 2020-11-05 21:32:37 ALeRCE F. Forster, F.E. Bauer, A. Munoz-Arancibia et al. ALeRCE ZTF 01:54:05.891 +07:08:58.72 2020-11-01 07:23:55.003 19.6157 g-ZTF PSN SDSS J015405.95+070859.8 ZTF20acowddo ZTF Early SN candidate (g-rise > 0.14+-0.04 mag/day, r-rise > 0.13+-0.01 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20acowddo 2020TNSTR3351....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
7954 2020-11-09 20:29:50 ePESSTOplus_Bot1 N.Ihanec, M.Gromadzki, S.Brennan, M.Fraser, R.Byrne, I. Irani on behalf of ePESSTO+ ePESSTO+ SN Ia 0.073 1 ePESSTO+ 2020TNSCR3396....1I
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
7966 2020-11-09 04:01:04 ESO-NTT / EFOSC2-NTT 899 N.Ihanec, M.Gromadzki S.Brennan, M.Fraser, R.Byrne ePESSTO+ tns_2020yyg_2020-11-09_04-01-04_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2020yyg_2020-11-09_04-01-04_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
7945 2020-11-09 11:08:01 Lina Tomasella L. Tomasella, S. Benetti, E. Cappellaro, N. Elias-Rosa, A. Pastorello (INAF Padova) Padova-Asiago SN Ia-91T-like 0.067 1 Padova-Asiago The spectrum is consistent with those of SNe Ia-91T-like few days before maximum. The expansion velocity deduced from the Si II 635.5 nm absorption is about 10000 km/s. The redshift is from narrow lines of the host galaxy, which is different from the photometric redshift (0.051) reported by SDSS. 2020TNSCR3399....1T
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
7957 2020-11-08 19:24:00 Ekar / AFOSC 2700 Tomasella Tomasella Padova-Asiago tns_2020yyg_2020-11-08_19-24-00_Ekar_AFOSC_Padova-Asiago.dat tns_2020yyg_2020-11-08_19-24-00_Ekar_AFOSC_Padova-Asiago.fits Object

Comments

TNS
System

Wed, 02/17/2021 - 10:30

Object coordinates updated

Object coordinates updated according to AT-report 99740 of Group Pan-STARRS1
Previous RA, DEC: 01:54:05.887, +07:08:58.77 (28.5245271644, +7.14965926232)
Updated RA, DEC: 01:54:05.886, +07:08:58.76 (28.5245243783, 7.14965542503)

TNS
System

Wed, 12/09/2020 - 12:30

Object coordinates updated

Object coordinates updated according to AT-report 92086 of Group Pan-STARRS1
Previous RA, DEC: 01:54:05.884, +07:08:58.73 (28.524518166667, +7.1496459333333)
Updated RA, DEC: 01:54:05.887, +07:08:58.77 (28.5245271644, 7.14965926232)

TNS
System

Wed, 11/11/2020 - 06:30

Object coordinates updated

Object coordinates updated according to AT-report 88725 of Group ZTF
Previous RA, DEC: 01:54:05.891, +07:08:58.72 (28.52454625, +7.1496452)
Updated RA, DEC: 01:54:05.884, +07:08:58.73 (28.524518166667, 7.1496459333333)