RA/DEC (2000)
12:12:10.290 +13:14:57.05
183.042875 +13.249181
Type
SN Ib
Redshift
0.006211
Discovery ReportClassification Report
Related AstroNotes: 2021-91
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2021-03-20 05:38:54.240
TNS AT
Y
Public
Y
Discovery Mag
18.2017
Filter
r-ZTF
Reporter/s
Rachel BRUCH, Erez Zimmerman (WIS), Joel Johansson (OKC)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2021gno - 2021-04-02 05:50:22 P60 / SEDM (ZTF)z=
 ▌SN_2021gno - 2021-04-01 23:25:45 LT / SPRAT (ZTF)z=
 ▌SN_2021gno - 2021-03-22 00:00:00 Lick-3m / KAST (UCSC)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
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_cyan
 ▌PS1_GPC1_r
 ▌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
9271 2021-04-02 05:50:22 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2021gno_2021-04-02_05-50-21.588526_P60_SEDM_ZTF.ascii Object
9270 2021-04-01 23:25:45 LT / SPRAT LTbot Perley ZTF tns_2021gno_2021-04-01_23-25-45.212_LT_SPRAT_ZTF.spec Object
9198 2021-03-22 00:00:00 Lick-3m / KAST T. Hung T. Hung UCSC tns_2021gno_2021-03-22_00-00-00_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2021-04-03 08:03:50 - 2021-04-03 08:03:50 2459307.836 - 2459307.836 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
203827 2021-04-03 08:03:50 2459307.836 17.16 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2021-03-18 08:30:05 - 2021-03-20 05:38:54 2459291.8542245 - 2459293.7353472 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
199522 2021-03-20 05:38:54 2459293.7353472 18.2017 ABMag r-ZTF P48_ZTF-Cam
199521 2021-03-18 08:30:05 2459291.8542245 20.5483 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
G-Gaia Gaia_Gaia-photometric 2021-01-26 22:04:48 - 2021-05-01 12:04:19 2459241.42 - 2459336.003 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
209910 2021-05-01 12:04:19 2459336.003 18.82 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
209909 2021-01-26 22:04:48 2459241.42 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2021-03-20 09:14:24 - 2021-03-20 09:14:24 2459293.885 - 2459293.885 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
199524 2021-03-20 09:14:24 2459293.885 18.049 0.05 19.76 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2021-03-18 10:32:10 - 2021-03-18 10:32:10 2459291.939 - 2459291.939 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
199523 2021-03-18 10:32:10 2459291.939 19.81 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
r-P1 PS1_GPC1 2021-03-24 12:05:46 - 2021-03-24 12:05:46 2459298.004 - 2459298.004 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
200629 2021-03-24 12:05:46 2459298.004 18.03 0.03 20.6 ABMag r-P1 PS1_GPC1 27 Robot
w-P1 PS1_GPC1 2021-04-11 07:23:31 - 2021-04-11 07:23:31 2459315.808 - 2459315.808 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
207184 2021-04-11 07:23:31 2459315.808 17.64 0.01 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
108145 2021-05-03 11:26:13 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 12:12:10.290 +13:14:57.05 2021-05-01 12:04:19.200 18.82 G-Gaia PSN Gaia21cdw GaiaAlerts confirmed SN Ib N
106942 2021-04-16 10:44:12 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 12:12:10.293 +13:14:57.03 2021-04-11 07:23:31.200 17.64 w-P1 PSN PS21cjz Pan-STARRS N
105425 2021-04-05 22:31:02 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 12:12:10.294 +13:14:57.04 2021-04-03 08:03:50.400 17.16 w-P1 PSN PS21cjz Pan-STARRS N
103865 2021-03-24 15:48:46 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 12:12:10.295 +13:14:57.03 2021-03-24 12:05:45.600 18.03 r-P1 PSN PS21cjz Pan-STARRS N
103275 2021-03-20 13:48:55 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 12:12:10.305 +13:14:57.13 2021-03-20 09:14:24.000 18.049 orange-ATLAS PSN ATLAS21iro ATLAS N
103274 2021-03-20 13:21:03 Rachel BRUCH Rachel BRUCH, Erez Zimmerman (WIS), Joel Johansson (OKC) ZTF ZTF 12:12:10.294 +13:14:57.03 2021-03-20 05:38:54.240 18.2017 r-ZTF PSN ZTF21aaqhhfu AMPEL, ZTF 2021TNSTR.843....1B N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
9261 2021-04-02 23:02:02 ZTF_Bot1 A. Dahiwale, C. Fremling(Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ib 0.006211 1 ZTF 2021TNSCR1008....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
9271 2021-04-02 05:50:22 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2021gno_2021-04-02_05-50-21.588526_P60_SEDM_ZTF.ascii Object
9260 2021-04-02 22:07:56 Daniel Perley Daniel Perley (LJMU) ZTF SN IIb 0.006201 1 ZTF This transient was initially classified as a Type II SN based on follow-up within a few days after peak (TNS Classification Report 884). The light curve subsequently showed a sharp decline follwed by a second rise. Spectroscopy at around the time of the second peak from the Liverpool Telescope and the Palomar 60-inch telescope shows a series of broad features characteristic of Type Ib SNe. We thus reclassify the SN as a Type IIb. Redshift is from the host galaxy via NED. 2021TNSCR1009....1P
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
9270 2021-04-01 23:25:45 LT / SPRAT LTbot Perley ZTF tns_2021gno_2021-04-01_23-25-45.212_LT_SPRAT_ZTF.spec Object
9188 2021-03-22 16:26:34 UCSCTr_Bot1 T. Hung, S. Tinyanont, G. Dimitriadis, R. J. Foley (UCSC) UCSC SN II 0.006 1 UCSC The continuum is well fit by a black body with T = 12,000 K. We identify He I 5576 and H alpha with P-Cygni profiles in the continuum-subtracted spectrum. The velocity for both lines is -12,000 km/s. We note that AstroNote 2021-93 reported that AT2021gno has a blue featureless continuum on 2021-03-20 UT. Also see ATel 14479 2021TNSCR.884....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
9198 2021-03-22 00:00:00 Lick-3m / KAST T. Hung T. Hung UCSC tns_2021gno_2021-03-22_00-00-00_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Mon, 05/03/2021 - 10:30

Object coordinates updated

Object coordinates updated according to AT-report 108145 of Group GaiaAlerts
Previous RA, DEC: 12:12:10.293, +13:14:57.03 (183.04288893, +13.249176258)
Updated RA, DEC: 12:12:10.290, +13:14:57.05 (183.042875, 13.249181)

TNS
System

Fri, 04/16/2021 - 10:30

Object coordinates updated

Object coordinates updated according to AT-report 106942 of Group Pan-STARRS1
Previous RA, DEC: 12:12:10.294, +13:14:57.04 (183.042892605, +13.2491766969)
Updated RA, DEC: 12:12:10.293, +13:14:57.03 (183.04288893, 13.249176258)

TNS
System

Mon, 04/05/2021 - 22:30

Object coordinates updated

Object coordinates updated according to AT-report 105425 of Group Pan-STARRS1
Previous RA, DEC: 12:12:10.295, +13:14:57.03 (183.042897819, +13.2491751026)
Updated RA, DEC: 12:12:10.294, +13:14:57.04 (183.042892605, 13.2491766969)

TNS
System

Wed, 03/24/2021 - 15:30

Object coordinates updated

Object coordinates updated according to AT-report 103865 of Group Pan-STARRS1
Previous RA, DEC: 12:12:10.294, +13:14:57.03 (183.0428934, +13.2491746)
Updated RA, DEC: 12:12:10.295, +13:14:57.03 (183.042897819, 13.2491751026)