SN 2018ddb
RA/DEC (2000)
00:02:49.850 -66:11:05.93
0.707708 -66.184981
Type
SN Ia
Redshift
0.029
Discovery ReportClassification Report
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-07-05 00:57:36.000
TNS AT
Y
Public
Y
Host Name
IC 5380
Discovery Mag
16.6
Filter
g-Sloan
Reporter/s
K. Z. Stanek, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018ddb - 2018-07-17 04:51:00 SOAR / Goodman (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
22852018-07-17 04:51:00SOAR / Goodman1800Y.-C. PanY.-C. PanNone tns_2018ddb_2018-07-17_04-51-00_SOAR_Goodman.flmObject
Light Curves
FilterTel / InstObs-date rangePhotometry
G-GaiaGaia_Gaia-photometric2018-06-10 21:57:36 - 2018-07-23 07:50:522
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
324532018-07-23 07:50:5217.290.2ABMagG-GaiaGaia_Gaia-photometric60Robot
324522018-06-10 21:57:3621.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
I-CousinsOGLE-1.3m_OGLEIV-Cam2018-06-20 10:47:39 - 2018-10-26 02:21:343
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
381042018-10-26 02:21:3420.9280.31222VegaMagI-CousinsOGLE-1.3m_OGLEIV-Cam150OGLE-IV
381052018-07-05 09:13:0716.9630.0122VegaMagI-CousinsOGLE-1.3m_OGLEIV-Cam150OGLE-IV
381032018-06-20 10:47:3922VegaMagI-CousinsOGLE-1.3m_OGLEIV-Cam150OGLE-IV[Last non detection]
g-SloanASASSN-3_Paczynski2018-06-29 06:00:00 - 2018-06-29 06:00:001
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
311472018-06-29 06:00:0017ABMagg-SloanASASSN-3_Paczynski[Last non detection]
g-SloanASASSN-5_Payne-Gaposchkin2018-07-05 00:57:36 - 2018-07-05 00:57:361
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
311482018-07-05 00:57:3616.6ABMagg-SloanASASSN-5_Payne-Gaposchkin
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
238002018-10-29 18:52:36mariuszMariusz Gromadzki, Łukasz Wyrzykowski (Warsaw)OGLEOGLE00:02:49.810-66:11:05.702018-10-26 02:21:34.00020.928I-CousinsPSNOGLE
208532018-07-25 21:52:21Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlertsGaiaAlerts00:02:49.850-66:11:05.932018-07-23 07:50:52.00017.29G-GaiaPSNGaia18bvzGaiaAlertsconfirmed SN Ia, aka SN 2018ddb
199852018-07-05 12:40:23KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SNASAS-SN00:02:49.706-66:11:06.142018-07-05 00:57:36.00016.6g-SloanPSNASASSN-18oeASAS-SNIn two epochs, unknown redshift host
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
22782018-07-17 20:44:16UCSCTr_Bot1Y.-C. Pan, R. J. Foley (UCSC), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP)NoneSN Ia0.029SN Ia at +5 days. We measure a Si II 6355 velocity of -9,800 km/s. ATel 118652018TNSCR.998....1P

Comments

TNS System (WIS)

Sun, 06/23/2019 - 10:45

Object coordinates updated according to AT-report 20853 of Group GaiaAlerts
Previous RA, DEC: 00:02:49.706, -66:11:06.14 (0.70711, -66.18504)
Updated RA, DEC: 00:02:49.850, -66:11:05.93 (0.707708, -66.184981)

Patrick Vallely (The Ohio State University)

Thu, 07/05/2018 - 20:58

http://www.astronomy.ohio-state.edu/~assassin/followup/asassn-18oe.png