RA/DEC (2000)
12:36:33.260 +11:13:53.87
189.138583 +11.231631
Type
SN IIb
Redshift
0.007522
Discovery ReportClassification Report
Related AstroNotes: 2020-73, 2020-74, 2020-80
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2020-03-31 08:06:55.002
TNS AT
Y
Public
Y
Host Name
NGC 4568
Host Redshift
0.007522
Discovery Mag
19.0237
Filter
g-ZTF
Reporter/s
F. Forster, F.E. Bauer, G. Pignata, 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_2020fqv - 2020-04-10 00:00:00 Lijiang-2.4m / YFOSC (None)z=
 ▌SN_2020fqv - 2020-04-02 03:46:17 P60 / SEDM (ZTF)z=
 ▌SN_2020fqv - 2020-04-01 21:19:43 Ekar / AFOSC (Padova-Asiago)z=
 ▌SN_2020fqv - 2020-04-01 14:24:00 Lijiang-2.4m / YFOSC (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

 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_g
 ▌PS1_GPC1_w
 ▌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
6474 2020-04-10 00:00:00 Lijiang-2.4m / YFOSC J. Zhang, L. Wang, X. Wang, and L. Xing None tns_2020fqv_2020-04-10_Lijiang-2.4m_YFOSC.dat Object 2022-04-12
6452 2020-04-02 03:46:17 P60 / SEDM 1800 SEDmRobot auto ZTF tns_2020fqv_2020-04-02_03-46-17_P60_SEDM_ZTF.ascii Object
6447 2020-04-01 21:19:43 Ekar / AFOSC 3600 Tomasella Tomasella Padova-Asiago tns_2020fqv_2020-04-01_21-19-43_Ekar_AFOSC_Padova-Asiago.txt tns_2020fqv_2020-04-01_21-19-43_Ekar_AFOSC_Padova-Asiago.fits Object 2022-04-02
6445 2020-04-01 14:24:00 Lijiang-2.4m / YFOSC 1500 Jujia Zhang (YNAO) None tns_2020fqv_2020-04-01.6_Lijiang-2.4m_YFOSC.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2020-04-16 07:19:12 - 2020-04-16 07:19:12 2458955.805 - 2458955.805 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
131230 2020-04-16 07:19:12 2458955.805 15.64 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2020-03-28 09:37:26 - 2020-03-31 08:57:36 2458936.901 - 2458939.8733333 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
127324 2020-03-31 08:57:36 2458939.8733333 18.1532 0.0986196 19.2125 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
127387 2020-03-31 08:57:07 2458939.873 18.15 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
127322 2020-03-28 09:37:37 2458936.9011227 20.3937 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
127385 2020-03-28 09:37:26 2458936.901 20.39 ABMag r-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
g-ZTF P48_ZTF-Cam 2020-03-31 08:06:43 - 2020-03-31 08:06:55 2458939.838 - 2458939.8381366 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
127323 2020-03-31 08:06:55 2458939.8381366 19.0237 0.137274 19.9908 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
127386 2020-03-31 08:06:43 2458939.838 19.02 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
G-Gaia Gaia_Gaia-photometric 2020-02-07 00:17:17 - 2020-06-19 15:54:43 2458886.512 - 2459020.163 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
144350 2020-06-19 15:54:43 2459020.163 16.04 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
144349 2020-02-07 00:17:17 2458886.512 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2020-03-29 12:51:50 - 2020-04-02 09:23:02 2458938.036 - 2458941.891 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
127495 2020-04-02 09:23:02 2458941.891 15.863 0.026 19.21 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
127494 2020-03-29 12:51:50 2458938.036 19.71 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
g-P1 PS1_GPC1 2020-04-17 10:26:24 - 2020-04-17 10:26:24 2458956.935 - 2458956.935 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
133784 2020-04-17 10:26:24 2458956.935 16.52 0.02 21 ABMag g-P1 PS1_GPC1 27 Robot
w-P1 PS1_GPC1 2021-02-07 11:47:02 - 2021-02-07 11:47:02 2459252.991 - 2459252.991 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
192078 2021-02-07 11:47:02 2459252.991 19.97 0.05 22 ABMag w-P1 PS1_GPC1 45 Robot
Clear- Other_Other 2020-04-10 12:13:22 - 2020-04-10 12:13:22 2458950.0092824 - 2458950.0092824 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
129659 2020-04-10 12:13:22 2458950.0092824 15.3 VegaMag Clear- Other_Other Y.ohshima
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
99232 2021-02-11 12:56:44 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 12:36:33.267 +11:13:53.92 2021-02-07 11:47:02.400 19.97 w-P1 PSN PS20bzn Pan-STARRS N
74696 2020-06-21 11:21:14 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 12:36:33.260 +11:13:53.87 2020-06-19 15:54:43.200 16.04 G-Gaia PSN Gaia20cvs GaiaAlerts confirmed SN IIb N
69211 2020-04-29 16:31:20 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 12:36:33.261 +11:13:53.96 2020-04-17 10:26:24.000 16.52 g-P1 PSN PS20bzn Pan-STARRS N
67966 2020-04-17 09:22:58 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 12:36:33.259 +11:13:53.97 2020-04-16 07:19:12.000 15.64 w-P1 PSN PS20bzn Pan-STARRS N
67279 2020-04-13 05:29:03 Yuuji Ohshima Yuuji Ohshima 12:36:33.260 +11:13:54.40 2020-04-10 12:13:22.000 15.3 Clear- 1 PSN NGC4568 N
Related files
File Comments Last Modified (UT) Modified By
tns_2020fqv_atrep_67279.jpg 2020-04-13 05:29:04 Yuuji Ohshima
65782 2020-04-02 14:08:26 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 12:36:33.266 +11:13:54.05 2020-04-02 09:23:02.400 15.863 orange-ATLAS PSN ATLAS20jjt ATLAS N
65736 2020-03-31 20:35:44 ZTF_TESS C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 12:36:33.266 +11:13:54.04 2020-03-31 08:06:43.200 19.02 g-ZTF PSN ZTF20aatzhhl ZTF N
65714 2020-03-31 15:59:42 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 12:36:33.264 +11:13:54.01 2020-03-31 08:06:55.002 19.0237 g-ZTF PSN NGC 4568 ZTF20aatzhhl ZTF Early SN candidate (g-rise > 0.57+-0.05 mag/day, r-rise > 0.75+-0.03 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aatzhhl 2020TNSTR.914....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
6464 2020-04-12 15:26:15 Steve Schulze J. Zhang (YNAO), A. Gal-Yam (WIS), L. Wang (YNAO), X. Wang (THU), L. Xing (YNAO), Y. Yang (WIS) and S. Schulze (WIS) None SN IIb 1 2020TNSCR1516....1Z
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
6474 2020-04-10 00:00:00 Lijiang-2.4m / YFOSC J. Zhang, L. Wang, X. Wang, and L. Xing None tns_2020fqv_2020-04-10_Lijiang-2.4m_YFOSC.dat Object 2022-04-12
6442 2020-04-02 17:35:25 ZTF_Bot1 A. Dahiwale, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN II 0.007522 1 ZTF 2020TNSCR1515....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
6452 2020-04-02 03:46:17 P60 / SEDM 1800 SEDmRobot auto ZTF tns_2020fqv_2020-04-02_03-46-17_P60_SEDM_ZTF.ascii Object
6437 2020-04-02 00:16:28 Lina Tomasella L. Tomasella, S. Benetti, A. Pastorello, E. Cappellaro, N. Elias-Rosa, M. Turatto (INAF OAPd), G. Pignata (Uni Andres Bello) Padova-Asiago SN II 0.007522 1 1 Padova-Asiago The spectrum is consistent with that of a young Type II SN, after correcting for a host galaxy reddening E(B-V) ~ 0.6 mag, as derived from the EW of the NaI D. The most prominent feature is He II 468.6 nm, but Ca II H&K is also clearly detected is absorption. Broad, shallow Halpha and Hbeta are also barely detected. 2020TNSCR1514....1T
Related files
File Comments Last Modified (UT) Modified By
tns_2020fqv_classrep_6437_Padova-Asiago.png 2020-04-02 00:16:29 Lina Tomasella
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
6447 2020-04-01 21:19:43 Ekar / AFOSC 3600 Tomasella Tomasella Padova-Asiago tns_2020fqv_2020-04-01_21-19-43_Ekar_AFOSC_Padova-Asiago.txt tns_2020fqv_2020-04-01_21-19-43_Ekar_AFOSC_Padova-Asiago.fits Object 2022-04-02
6435 2020-04-01 16:15:50 Jujia Zhang Jujia Zhang, Yuxin Yin(YNAO); Xiaofeng Wang (THU); Yi Yang, Avishay Gal-Yam, Steve Schulze, Rachel Bruch (Weizman); Lifan Wang(TAMU) None SN Ib/c 0.007 1 The spectrum matches the young Ib/c by GELATO (e.g., SN 2008D at t = -16d, with a low Quality of Fit). The strong NaID indicates significant Host extinction. 2020TNSCR.932....1Z
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
6445 2020-04-01 14:24:00 Lijiang-2.4m / YFOSC 1500 Jujia Zhang (YNAO) None tns_2020fqv_2020-04-01.6_Lijiang-2.4m_YFOSC.dat Object

Comments

TNS
System

Sun, 06/21/2020 - 10:30

Object coordinates updated

Object coordinates updated according to AT-report 74696 of Group GaiaAlerts
Previous RA, DEC: 12:36:33.261, +11:13:53.96 (189.13858706, +11.2316554455)
Updated RA, DEC: 12:36:33.260, +11:13:53.87 (189.138583, 11.231631)

TNS
System

Wed, 04/29/2020 - 16:30

Object coordinates updated

Object coordinates updated according to AT-report 69211 of Group Pan-STARRS1
Previous RA, DEC: 12:36:33.259, +11:13:53.97 (189.138580586, +11.2316573911)
Updated RA, DEC: 12:36:33.261, +11:13:53.96 (189.13858706, 11.2316554455)

TNS
System

Fri, 04/17/2020 - 08:30

Object coordinates updated

Object coordinates updated according to AT-report 67966 of Group Pan-STARRS1
Previous RA, DEC: 12:36:33.266, +11:13:54.04 (189.1386084, +11.2316768)
Updated RA, DEC: 12:36:33.259, +11:13:53.97 (189.138580586, 11.2316573911)

TNS
System

Tue, 03/31/2020 - 20:30

Object coordinates updated

Object coordinates updated according to AT-report 65736 of Group ZTF
Previous RA, DEC: 12:36:33.264, +11:13:54.01 (189.1385999, +11.2316701)
Updated RA, DEC: 12:36:33.266, +11:13:54.04 (189.1386084, 11.2316768)