RA/DEC (2000)
21:40:25.160 +28:42:50.80
325.104833 +28.714111
Type
SN IIb
Redshift
0.029
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2021-03-17 12:53:16.800
TNS AT
Y
Public
Y
Discovery Mag
19.88
Filter
r-ZTF
Reporter/s
C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration

Spectra

 SN_2021hec - 2021-05-13 00:00:00 P200 / DBSP (ZTF)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
 Gaia_Gaia-photometric_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
9993 2021-05-13 00:00:00 P200 / DBSP Lin Yan Lin Yan ZTF tns_2021hec_2021-05-13_P200_DBSP_ZTF.txt Object 2024-03-27
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2021-03-17 12:50:15 - 2021-03-27 12:28:48 2459291.0349 - 2459301.02 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
200984 2021-03-27 12:28:48 2459301.02 19.16 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
200983 2021-03-17 12:53:17 2459291.037 19.88 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
224496 2021-03-17 12:53:43 2459291.0373 19.88 ABMag r-Sloan P48_ZTF-Cam
224495 2021-03-17 12:50:15 2459291.0349 19.99 ABMag r-Sloan P48_ZTF-Cam [Last non detection]
G-Gaia Gaia_Gaia-photometric 2021-02-05 15:44:38 - 2021-04-10 19:56:38 2459251.156 - 2459315.331 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
206289 2021-04-10 19:56:38 2459315.331 18.68 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
206288 2021-02-05 15:44:38 2459251.156 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [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
115352 2021-07-01 00:17:41 Lin Yan Lin Yan ZTF ZTF 21:40:25.150 +28:42:50.90 2021-03-17 12:53:42.720 19.88 r-Sloan PSN ZTF N
106480 2021-04-12 19:34:26 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 21:40:25.160 +28:42:50.80 2021-04-10 19:56:38.400 18.68 G-Gaia PSN Gaia21bup GaiaAlerts candidate SN near galaxy SDSS J214025.14+284248.4 N
104048 2021-03-27 23:59:35 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 21:40:25.163 +28:42:50.82 2021-03-17 12:53:16.800 19.88 r-ZTF PSN ZTF21aaquyqa ZTF 2021TNSTR.940....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
9976 2021-07-01 00:22:45 Lin Yan Lin Yan (Caltech), D. Perley (JLMU), S. Schulze (Weizmann), T.W Chen (OKC), R. Lunnan(OKC) ZTF SN IIb 0.029 1 ZTF 2021TNSCR2273....1Y
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
9993 2021-05-13 00:00:00 P200 / DBSP Lin Yan Lin Yan ZTF tns_2021hec_2021-05-13_P200_DBSP_ZTF.txt Object 2024-03-27

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 106480 of Group GaiaAlerts
Previous RA, DEC: 21:40:25.163, +28:42:50.82 (325.1048451, +28.7141168)
Updated RA, DEC: 21:40:25.160, +28:42:50.80 (325.104833, 28.714111)