RA/DEC (2000)
09:14:55.257 +46:54:08.87
138.730237778 +46.9024638889
Type
SN II
Redshift
0.0142
Discovery ReportClassification Report
Reporting Group
None
Discovering Data Source
None
Discovery Date
2018-03-25 21:21:36.000
TNS AT
Y
Public
Y
Host Name
UGC 4870
Discovery Mag
18
Filter
Clear-
Reporter/s
giancarlo cortini
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018amb - 2018-03-27 05:18:35 P60 / SEDM (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

 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_cyan
 ▌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
1816 2018-03-27 05:18:35 P60 / SEDM 2400 SEDM Robot James Neill None tns_2018amb_2018-03-27_05-18-35_P60_SED-Machine.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
G-Gaia Gaia_Gaia-photometric 2017-11-17 15:31:40 - 2018-04-08 05:15:21 2458075.1469907 - 2458216.7189931 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
26921 2018-04-08 05:15:21 2458216.7189931 17.64 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
26920 2017-11-17 15:31:40 2458075.1469907 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2018-03-29 08:55:41 - 2018-03-29 08:55:41 2458206.872 - 2458206.872 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
140178 2018-03-29 08:55:41 2458206.872 17.653 0.097 18.43 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2018-03-19 10:13:26 - 2018-03-19 10:13:26 2458196.926 - 2458196.926 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
140177 2018-03-19 10:13:26 2458196.926 19.71 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
Clear- Other_Other 2018-02-08 19:55:12 - 2018-03-25 21:21:36 2458158.33 - 2458203.39 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
26462 2018-03-25 21:21:36 2458203.39 18 Other Clear- Other_Other 35 Giancarlo Cortini (Monte Maggiore Observatory-Predappio-ITALY) reports the discovery of a possible supernova in UGC 4870 by 0.35m. Sch.-Cass. F/5.5 + Starlight X-Press Trius SX9 CCD camera on several unfiltered images, 35 sec. exposure, mag. about+ 18.0,limit mag. about+ 19.0. (the new object is located at: R.A. 09 14 55.30, DECL. +46 54 09.0 (2000.0). My past image of the same field taken on 2018/02/08.83 showed nothing at that position (limit mag.+ 19.0) and it doesn't appear on P.O.S.S. II red and blue plates. No known minor planet is marked in that position for the time of the discovery. Mag. values from: GSC and USNO.
26461 2018-02-08 19:55:12 2458158.33 19 Other Clear- Other_Other 35 [Last non detection] Giancarlo Cortini (Monte Maggiore Observatory-Predappio-ITALY) reports the discovery of a possible supernova in UGC 4870 by 0.35m. Sch.-Cass. F/5.5 + Starlight X-Press Trius SX9 CCD camera on several unfiltered images, 35 sec. exposure, mag. about+ 18.0,limit mag. about+ 19.0. (the new object is located at: R.A. 09 14 55.30, DECL. +46 54 09.0 (2000.0). My past image of the same field taken on 2018/02/08.83 showed nothing at that position (limit mag.+ 19.0) and it doesn't appear on P.O.S.S. II red and blue plates. No known minor planet is marked in that position for the time of the discovery. Mag. values from: GSC and USNO.
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
72427 2020-05-31 07:09:48 ATLAS_Bot1 J. Tonry,L. Denneau,A. Heinze et al. ATLAS ATLAS 09:14:55.257 +46:54:08.87 2018-03-29 08:55:40.800 17.653 orange-ATLAS PSN ATLAS18bclf ATLAS N
17727 2018-04-11 12:30:29 Gaia_Bot1 A. Delgado,D. Harrison,S. Hodgkin et al. GaiaAlerts GaiaAlerts 09:14:55.210 +46:54:08.78 2018-04-08 05:15:21.000 17.64 G-Gaia PSN Gaia18awz GaiaAlerts confirmed SN II, aka SN2018amb N
17494 2018-03-25 22:21:53 Giancarlo Cortini giancarlo cortini et al. 09:14:55.300 +46:54:09.00 2018-03-25 21:21:36.000 18 Clear- PSN UGC 4870 Giancarlo Cortini (Monte Maggiore Observatory-Predappio-ITALY) reports the discovery of a possible supernova in UGC 4870 by 0.35m. Sch.-Cass. F/5.5 + Starlight X-Press Trius SX9 CCD camera on several unfiltered images, 35 sec. exposure, mag. about+ 18.0,limit mag. about+ 19.0. (the new object is located at: R.A. 09 14 55.30, DECL. +46 54 09.0 (2000.0). My past image of the same field taken on 2018/02/08.83 showed nothing at that position (limit mag.+ 19.0) and it doesn't appear on P.O.S.S. II red and blue plates. No known minor planet is marked in that position for the time of the discovery. Mag. values from: GSC and USNO. 2018TNSTR.393....1C N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
1811 2018-03-28 02:27:22 Christoffer Fremling Christoffer Fremling (Caltech), Nadejda Blagorodnova (Caltech), James Neill (Caltech) None SN II 0.0142 1 2018TNSCR.411....1F
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
1816 2018-03-27 05:18:35 P60 / SEDM 2400 SEDM Robot James Neill None tns_2018amb_2018-03-27_05-18-35_P60_SED-Machine.txt Object

Comments

TNS
System

Sun, 05/31/2020 - 06:30

Object coordinates updated

Object coordinates updated according to AT-report 72427 of Group ATLAS
Previous RA, DEC: 09:14:55.210, +46:54:08.78 (138.730042, +46.902439)
Updated RA, DEC: 09:14:55.257, +46:54:08.87 (138.730237778, 46.9024638889)

TNS
System

Sun, 06/23/2019 - 10:43

Object coordinates updated

Object coordinates updated according to AT-report 17727 of Group GaiaAlerts
Previous RA, DEC: 09:14:55.300, +46:54:09.00 (138.730417, +46.9025)
Updated RA, DEC: 09:14:55.210, +46:54:08.78 (138.730042, 46.902439)