RA/DEC (2000)
16:57:58.670 -62:43:54.05
254.494458 -62.731681
Type
SN Ia
Redshift
0.0195
Reporting Group
BOSS
Discovering Data Source
BOSS
Discovery Date
2018-05-17 12:06:00.000
TNS AT
Y
Public
Y
Host Name
ESO-101-G-20
Discovery Mag
16.4
Filter
Other-
Reporter/s
Stuart Parker

Spectra

 SN_2018bta - 2018-05-20 03:44:49 ESO-NTT / EFOSC2-NTT (ePESSTO)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
 Other_Other_Other
   
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
2048 2018-05-20 03:44:49 ESO-NTT / EFOSC2-NTT 900 Peter Clark Stephen Smartt ePESSTO tns_2018bta_2018-05-20_03-44-49_ESO-NTT_EFOSC2-NTT_ePESSTO.asci tns_2018bta_2018-05-20_03-44-49_ESO-NTT_EFOSC2-NTT_ePESSTO.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
G-Gaia Gaia_Gaia-photometric 2018-04-03 16:32:09 - 2018-08-03 02:34:04 2458212.1889931 - 2458333.6069907 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
33158 2018-08-03 02:34:04 2458333.6069907 18.07 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
33157 2018-04-03 16:32:09 2458212.1889931 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
Other- Other_Other 2018-04-18 12:43:05 - 2018-05-17 12:06:00 2458227.029919 - 2458256.0041667 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
28647 2018-05-17 12:06:00 2458256.0041667 16.4 18.5 Other Other- Other_Other 30 Parker Easily Visible
28646 2018-04-18 12:43:05 2458227.029919 18 Other Other- Other_Other 30 Parker [Last non detection] Not visible
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
21273 2018-08-05 23:03:07 Gaia_Bot1 A. Delgado,D. Harrison,S. Hodgkin et al. GaiaAlerts GaiaAlerts 16:57:58.670 -62:43:54.05 2018-08-03 02:34:04.000 18.07 G-Gaia PSN Gaia18bzp GaiaAlerts confirmed SN Ia, aka SN 2018bta N
18655 2018-05-18 09:51:29 Stuart Parker Stuart Parker et al. BOSS BOSS 16:57:58.750 -62:43:53.70 2018-05-17 12:06:00.000 16.4 Other- PSN ESO-101-G-20 BOSS 2018TNSTR.663....1P N
Related files
File Comments Last Modified (UT) Modified By
tns_2018bta_atrep_18655_BOSS.jpg 2018-05-18 11:26:31 Stuart Parker
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
2043 2018-05-20 19:10:14 ePESSTO_Bot1 Peter Clark, Stephen Smartt, O. Yaron, N. Knezevic on behalf of ePESSTO ePESSTO SN Ia 0.0195 1 ePESSTO 2018TNSCR.678....1C
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
2048 2018-05-20 03:44:49 ESO-NTT / EFOSC2-NTT 900 Peter Clark Stephen Smartt ePESSTO tns_2018bta_2018-05-20_03-44-49_ESO-NTT_EFOSC2-NTT_ePESSTO.asci tns_2018bta_2018-05-20_03-44-49_ESO-NTT_EFOSC2-NTT_ePESSTO.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 21273 of Group GaiaAlerts
Previous RA, DEC: 16:57:58.750, -62:43:53.70 (254.494792, -62.731583)
Updated RA, DEC: 16:57:58.670, -62:43:54.05 (254.494458, -62.731681)

Stuart
Parker

discovery info

Stuart Parker, Canterbury, New Zealand, reports the discovery of an apparent supernova (red mag 16.4) on a 30-s unfiltered CCD image (limiting mag 18)
taken by himself with a 30-cm Astro-Tech AT12RC Ritchey-Chretien astrograph (+ ST10 camera) at his Parkdale Observatory in the course of the Backyard Observatory Supernova Search.Which is 1E"and 20S"of the nucleus of the galaxy ESO101-G-20 (PGC59334)