RA/DEC (2000)
20:33:37.490 +15:46:23.18
308.40620758 +15.7731055
Type
Varstar
Redshift
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2020-05-08 09:11:31.200
TNS AT
Y
Public
Y
Discovery Mag
16.26
Filter
g-ZTF
Reporter/s
C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌AT_2020joj - 2020-05-15 13:03:04 FTN / FLOYDS-N (Global SN Project)z=
 ▌AT_2020joj - 2020-05-13 17:57:44 FTS / FLOYDS-S (Global SN Project)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),

Light curves

 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
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
6630 2020-05-15 13:03:04 FTN / FLOYDS-N 3600 Las Cumbres Observatory Daichi Hiramatsu Global SN Project tns_2020joj_2020-05-15_13-03-04_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2020joj_2020-05-15_13-03-04_FTN_FLOYDS-N_Global_SN_Project.fits Object
6627 2020-05-13 17:57:44 FTS / FLOYDS-S 2700 Las Cumbres Observatory Daichi Hiramatsu Global SN Project tns_2020joj_2020-05-13_17-57-44_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2020joj_2020-05-13_17-57-44_FTS_FLOYDS-S_Global_SN_Project.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2020-05-08 11:48:29 - 2020-05-17 11:11:53 2458977.992 - 2458986.9665856 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
137295 2020-05-17 11:11:53 2458986.9665856 18.23 0.07 20.8 ABMag r-ZTF P48_ZTF-Cam 30
137293 2020-05-11 11:40:09 2458980.9862153 19.5725 ABMag r-ZTF P48_ZTF-Cam 30 [Last non detection]
135978 2020-05-08 11:48:29 2458977.992 16.7 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
g-ZTF P48_ZTF-Cam 2020-05-05 11:41:17 - 2020-05-17 10:12:50 2458974.987 - 2458986.9255787 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
137294 2020-05-17 10:12:50 2458986.9255787 18.18 0.06 20.65 ABMag g-ZTF P48_ZTF-Cam 30
135977 2020-05-08 09:11:31 2458977.883 16.26 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
135976 2020-05-05 11:41:17 2458974.987 19.98 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
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
71034 2020-05-17 12:04:21 ZTF_AMPEL_COMPLETE J. Nordin, V. Brinnel, M. Giomi et al. ZTF ZTF 20:33:37.490 +15:46:23.18 2020-05-17 10:12:50.112 18.18 g-ZTF PSN ZTF20aaytqhd ZTF See arXiv:1904.05922 for selection criteria. N
70362 2020-05-11 10:03:24 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 20:33:37.492 +15:46:23.15 2020-05-08 09:11:31.200 16.26 g-ZTF PSN ZTF20aaytqhd ZTF 2020TNSTR1307....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
6619 2020-05-15 16:16:52 Daichi Hiramatsu Daichi Hiramatsu, D. Andrew Howell, Jamison Burke, Iair Arcavi, Curtis McCully, Craig Pellegrino, Stefano Valenti Global SN Project Varstar 1 Global SN Project We obtained a higher SNR spectrum that shows H and He absorption lines at z = 0, suggesting a galactic variable source. 2020TNSCR1531....1H
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
6630 2020-05-15 13:03:04 FTN / FLOYDS-N 3600 Las Cumbres Observatory Daichi Hiramatsu Global SN Project tns_2020joj_2020-05-15_13-03-04_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2020joj_2020-05-15_13-03-04_FTN_FLOYDS-N_Global_SN_Project.fits Object
6616 2020-05-14 02:06:12 Daichi Hiramatsu Daichi Hiramatsu, D. Andrew Howell, Jamison Burke, Iair Arcavi, Curtis McCully, Craig Pellegrino, Stefano Valenti Global SN Project SN 1 Global SN Project Based on the blue continuum, the fast rise to the peak (>1.2 mag/day in g band), and the subsequent decline (~0.3 mag/day in g band) within 6 days or less of explosion as seen in the public ZTF light curve, this object could be a young core-collapse SN, or possibly a fast blue optical transient (FBOT). A faint smudge at the object location can be seen in PS1 images, but no obvious host lines can be identified in the 2D spectrum. Further followup is encouraged, as is refining this classification and redshift as the object evolves further. 2020TNSCR1345....1H
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
6627 2020-05-13 17:57:44 FTS / FLOYDS-S 2700 Las Cumbres Observatory Daichi Hiramatsu Global SN Project tns_2020joj_2020-05-13_17-57-44_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2020joj_2020-05-13_17-57-44_FTS_FLOYDS-S_Global_SN_Project.fits Object

Comments

TNS
System

Sun, 05/17/2020 - 11:30

Object coordinates updated

Object coordinates updated according to AT-report 71034 of Group ZTF
Previous RA, DEC: 20:33:37.492, +15:46:23.15 (308.4062164, +15.7730981)
Updated RA, DEC: 20:33:37.490, +15:46:23.18 (308.40620758, 15.7731055)