RA/DEC (2000)
15:50:03.560 +42:05:18.53
237.514833 +42.088481
Type
SN Ia
Redshift
0.03
Discovery ReportClassification Report
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-04-03 06:14:24.000
TNS AT
Y
Public
Y
Host Name
SDSS J155003.56+420518.3
Discovery Mag
17
Filter
g-Sloan
Reporter/s
K. Z. Stanek, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018apn - 2018-04-10 09:50:24 MDM-2.4 / OSMOS (ASAS-SN)z=
 ▌SN_2018apn - 2018-04-02 00:00:00 P60 / SEDM (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

 ▌ASASSN-4_Leavitt_g
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
1857 2018-04-10 09:50:24 MDM-2.4 / OSMOS J. Rupert S. Bose ASAS-SN tns_2018apn_2018-04-10.41_MDM-2.4_OSMOS_ASAS-SN.txt tns_2018apn_2018-04-10.41_MDM-2.4_OSMOS_ASAS-SN.fits Object
1966 2018-04-02 00:00:00 P60 / SEDM SEDMrobot D. Neil ZTF tns_2018apn_2018-04-02.0_P60_SED-Machine_ZTF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-Sloan ASASSN-4_Leavitt 2018-03-22 07:40:48 - 2018-04-03 06:14:24 2458199.82 - 2458211.76 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
26684 2018-04-03 06:14:24 2458211.76 17 ABMag g-Sloan ASASSN-4_Leavitt
26683 2018-03-22 07:40:48 2458199.82 18.9 ABMag g-Sloan ASASSN-4_Leavitt [Last non detection]
G-Gaia Gaia_Gaia-photometric 2018-04-22 19:52:19 - 2018-05-08 00:11:31 2458231.3279977 - 2458246.5079977 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
27805 2018-05-08 00:11:31 2458246.5079977 18.14 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
27804 2018-04-22 19:52:19 2458231.3279977 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2018-03-29 12:50:24 - 2018-03-29 12:50:24 2458207.035 - 2458207.035 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
26826 2018-03-29 12:50:24 2458207.035 17.362 0.072 18.71 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2018-03-19 13:35:02 - 2018-03-19 13:35:02 2458197.0659954 - 2458197.0659954 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
26825 2018-03-19 13:35:02 2458197.0659954 17.2 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 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
18227 2018-05-09 07:36:03 Gaia_Bot1 A. Delgado, D. Harrison, S. Hodgkin et al. GaiaAlerts GaiaAlerts 15:50:03.560 +42:05:18.53 2018-05-08 00:11:31.000 18.14 G-Gaia PSN Gaia18bej GaiaAlerts confirmed SN Ia, aka SN 2018apn N
17680 2018-04-09 17:52:02 ATLAS_Bot1 J. Tonry, B. Stalder, L. Denneau et al. ATLAS ATLAS 15:50:03.558 +42:05:18.47 2018-03-29 12:50:24.000 17.362 orange-ATLAS PSN ATLAS18nac ATLAS N
17608 2018-04-04 04:21:16 Krzysztof Stanek K. Z. Stanek, for the ASAS-SN team ASAS-SN ASAS-SN 15:50:03.461 +42:05:17.88 2018-04-03 06:14:24.000 17 g-Sloan PSN SDSS J155003.56+420518.3 ASASSN-18gs ASAS-SN In several epochs, very faint unknown redshift SDSS host, a bigger galaxy with z=0.034 relatively nearby 2018TNSTR.438....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
1961 2018-04-25 06:37:36 ZTF_Bot1 D. Neil, R. Walters, C. Fremling (Caltech), R. Lunnan, J. Sollerman (OKC), S. Schulze, O. Yaron, A. Gal-Yam (Weizmann) on behalf of ZTF ZTF SN Ia 0.03 1 ZTF 2018TNSCR2094....1N
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
1966 2018-04-02 00:00:00 P60 / SEDM SEDMrobot D. Neil ZTF tns_2018apn_2018-04-02.0_P60_SED-Machine_ZTF.txt Object
1852 2018-04-12 06:36:41 Subhash Bose S. Bose, S. Dong, P. Chen (KIAA-PKU), J. Rupert (MDM), J. Shields, K. Z. Stanek (OSU), J. L. Prieto (UDP) ASAS-SN SN Ia 0.039 1 ASAS-SN 2018TNSCR.484....1B
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
1857 2018-04-10 09:50:24 MDM-2.4 / OSMOS J. Rupert S. Bose ASAS-SN tns_2018apn_2018-04-10.41_MDM-2.4_OSMOS_ASAS-SN.txt tns_2018apn_2018-04-10.41_MDM-2.4_OSMOS_ASAS-SN.fits Object

Comments

TNS
System

Sun, 06/23/2019 - 10:43

Object coordinates updated

Object coordinates updated according to AT-report 18227 of Group GaiaAlerts
Previous RA, DEC: 15:50:03.461, +42:05:17.88 (237.51442, +42.0883)
Updated RA, DEC: 15:50:03.560, +42:05:18.53 (237.514833, 42.088481)