RA/DEC (2000)
17:03:11.720 +61:27:26.14
255.798833 +61.457261
Type
SN Ia
Redshift
0.02
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2017-04-02 11:02:24.000
TNS AT
Y
Public
Y
Host Name
CGCG 299-048
Host Redshift
0.01976
Discovery Mag
17
Filter
V-Johnson
Reporter/s
J. Brimacombe, G. Stone, R. Post, K. Z. Stanek, for the ASAS-SN team

Spectra

 SN_2017cts - 2017-04-04 02:53:16 LT / SPRAT (ASAS-SN)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 Gaia_Gaia-photometric_G
 PS1_GPC1_i
 ASASSN-1_Brutus_V
   
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
897 2017-04-04 02:53:16 LT / SPRAT 600 Bersier Bersier ASAS-SN tns_2017cts_2017-04-04_02-53-16_LT_SPRAT_ASAS-SN.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
G-Gaia Gaia_Gaia-photometric 2017-02-28 01:40:48 - 2017-04-30 00:46:04 2457812.57 - 2457873.5319907 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
16594 2017-04-30 00:46:04 2457873.5319907 16.6 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
16593 2017-02-28 01:40:48 2457812.57 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
i-P1 PS1_GPC1 2017-05-15 11:58:33 - 2017-05-15 11:58:33 2457888.9989931 - 2457888.9989931 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
17577 2017-05-15 11:58:33 2457888.9989931 17.04 0.03 20.7 ABMag i-P1 PS1_GPC1 45 Robot
V-Johnson ASASSN-1_Brutus 2017-03-26 12:28:48 - 2017-04-02 11:02:24 2457839.02 - 2457845.96 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
15662 2017-04-02 11:02:24 2457845.96 17 0.12 VegaMag V-Johnson ASASSN-1_Brutus
15661 2017-03-26 12:28:48 2457839.02 18 VegaMag V-Johnson ASASSN-1_Brutus [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
11862 2017-06-05 15:42:10 PS1_Bot1 K. C. Chambers, M. E. Huber, H. Flewelling et al. Pan-STARRS Pan-STARRS 17:03:11.711 +61:27:26.14 2017-05-15 11:58:33.000 17.04 i-P1 PSN PS17dex Pan-STARRS N
11203 2017-05-02 05:59:31 Gaia_Bot1 A. Delgado, D. Harrison, S. Hodgkin et al. GaiaAlerts GaiaAlerts 17:03:11.720 +61:27:26.14 2017-04-30 00:46:04.000 16.6 G-Gaia PSN Gaia17bdd GaiaAlerts confirmed SN Ia near galaxy 2MASX J17031025+6127341 N
10526 2017-04-03 13:32:18 Krzysztof Stanek J. Brimacombe, G. Stone, R. Post et al. ASAS-SN ASAS-SN 17:03:11.758 +61:27:26.06 2017-04-02 11:02:24.000 17 V-Johnson PSN CGCG 299-048 ASASSN-17em ASAS-SN Confirmed in follow-up images, between two galaxies of a galaxy pair 2017TNSTR.391....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
887 2017-04-04 08:40:53 David Bersier David Bersier ASAS-SN SN Ia 0.02 1 ASAS-SN Comparison with a library of spectra with SNID shows that this is a normal SN Ia a few days before maximum light. 2017TNSCR.399....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
897 2017-04-04 02:53:16 LT / SPRAT 600 Bersier Bersier ASAS-SN tns_2017cts_2017-04-04_02-53-16_LT_SPRAT_ASAS-SN.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 11203 of Group GaiaAlerts
Previous RA, DEC: 17:03:11.758, +61:27:26.06 (255.79899, +61.45724)
Updated RA, DEC: 17:03:11.720, +61:27:26.14 (255.798833, 61.457261)