RA/DEC (2000)
09:16:22.126 +10:13:53.89
139.092192201 +10.2316348468
Type
SN Ia
Redshift
0.03
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-02-21 03:36:00.000
TNS AT
Y
Public
Y
Host Name
CGCG 062-012
Host Redshift
0.030875
Discovery Mag
17.3
Filter
g-Sloan
Reporter/s
K. Z. Stanek, for the ASAS-SN team

Spectra

 SN_2018xy - 2018-02-26 20:52:50 SALT / RSS (None)z=
Show H at z=vexp= km/s
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Show Mg at z=vexp= km/s
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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
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Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ASASSN-4_Leavitt_g
 ASASSN-3_Paczynski_g
 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
1755 2018-02-26 20:52:50 SALT / RSS 900 Service None tns_2018xy_2018-02-26_20-52-50_SALT_RSS.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-Sloan ASASSN-4_Leavitt 2018-02-15 06:00:00 - 2018-02-15 06:00:00 2458164.75 - 2458164.75 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
25683 2018-02-15 06:00:00 2458164.75 18.6 ABMag g-Sloan ASASSN-4_Leavitt [Last non detection]
g-Sloan ASASSN-3_Paczynski 2018-02-21 03:36:00 - 2018-02-21 03:36:00 2458170.65 - 2458170.65 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
25684 2018-02-21 03:36:00 2458170.65 17.3 ABMag g-Sloan ASASSN-3_Paczynski
w-P1 PS1_GPC1 2018-02-20 06:57:36 - 2018-02-20 06:57:36 2458169.79 - 2458169.79 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
25768 2018-02-20 06:57:36 2458169.79 17.33 0.03 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
17093 2018-03-03 19:25:05 PS1_Bot1 K. C. Chambers, M. E. Huber, H. Flewelling et al. Pan-STARRS Pan-STARRS 09:16:22.126 +10:13:53.89 2018-02-20 06:57:36.000 17.33 w-P1 PSN PS18jx Pan-STARRS N
17044 2018-02-22 03:53:02 Krzysztof Stanek K. Z. Stanek, for the ASAS-SN team ASAS-SN ASAS-SN 09:16:22.063 +10:13:55.34 2018-02-21 03:36:00.000 17.3 g-Sloan PSN CGCG 062-012 ASASSN-18dk ASAS-SN Detection with several ASAS-SN telescopes 2018TNSTR.256....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
1750 2018-02-27 15:05:10 Iair Arcavi Iair Arcavi None SN Ia 0.03 1 Iair Arcavi (UCSB/Las Cumbres Observatory), Mariusz Gromadzki, Lukasz Wyrzykowski (Warsaw University Astronomical Observatory), and David Buckley (SAAO) report a spectrum of AT 2018xy/ASASSN-18dk obtained on 2018 February 26.9 UT with the RSS mounted on the South African Large Telescope (SALT) at the South African Astronomical Observatory, under the SALT Large Programme on transients (2016-2-LSP-001).. Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), we find reasonable fits to post-peak Type Ia supernovae at the redshift of the host galaxy (z~0.03; The 2MASS Redshift Survey via NED). 2018TNSCR.276....1A
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
1755 2018-02-26 20:52:50 SALT / RSS 900 Service None tns_2018xy_2018-02-26_20-52-50_SALT_RSS.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 17093 of Group Pan-STARRS1
Previous RA, DEC: 09:16:22.063, +10:13:55.34 (139.09193, +10.23204)
Updated RA, DEC: 09:16:22.126, +10:13:53.89 (139.092192201, 10.2316348468)