RA/DEC (2000)
12:25:24.180 +18:12:12.78
186.35075 +18.20355
Type
SN Ia
Redshift
Discovery ReportClassification Report
Related AstroNotes: 2020-126, 2020-127
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2020-06-25 06:01:26.400
TNS AT
Y
Public
Y
Discovery Mag
17.436
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, D. O'Neill, P. Clark, M. Fulton, J. Gillanders, M. Dobson (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO), A. Townsend (University of Manchester)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2020nlb - 2020-06-25 20:09:36 LT / SPRAT (None)z=
▌Show H at z=vexp= km/s
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▌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
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▌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),

Light curves

 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_cyan
 ▌PS1_GPC1_g
   
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
6988 2020-06-25 20:09:36 LT / SPRAT S. C. Williams (Turku), R. Kotak (Turku), P. A. Mazzali (LJMU), M. Fraser (UCD), I. Hook (Lancaster), J. Nordin (Humboldt Berlin S. C. Williams None tns_2020nlb_2020-06-25.84_LT_SPRAT.txt Object 2021-06-26
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2021-02-08 11:34:05 - 2021-02-08 11:34:05 2459253.982 - 2459253.982 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
194475 2021-02-08 11:34:05 2459253.982 17.9 0.03 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2021-03-31 07:39:30 - 2021-04-11 05:37:48 2459304.8190972 - 2459315.7345833 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
206418 2021-04-11 05:37:48 2459315.7345833 19.78 0.14 20.94 ABMag r-ZTF P48_ZTF-Cam 30
206417 2021-04-09 07:07:01 2459313.7965394 20.1446 ABMag r-ZTF P48_ZTF-Cam 30 [Last non detection]
204228 2021-04-03 06:26:55 2459307.7686921 19.45 0.11 20.62 ABMag r-ZTF P48_ZTF-Cam 30
204227 2021-03-31 07:39:30 2459304.8190972 19.6671 ABMag r-ZTF P48_ZTF-Cam 30 [Last non detection]
g-ZTF P48_ZTF-Cam 2021-04-03 07:09:22 - 2021-04-11 06:39:17 2459307.7981713 - 2459315.7772801 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
206419 2021-04-11 06:39:17 2459315.7772801 18.27 0.16 19.07 ABMag g-ZTF P48_ZTF-Cam 30
204229 2021-04-03 07:09:22 2459307.7981713 18.18 0.05 21 ABMag g-ZTF P48_ZTF-Cam 30
G-Gaia Gaia_Gaia-photometric 2020-05-08 14:12:29 - 2020-07-26 17:44:10 2458978.092 - 2459057.239 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
151459 2020-07-26 17:44:10 2459057.239 12.94 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
151458 2020-05-08 14:12:29 2458978.092 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2020-06-25 06:01:26 - 2020-06-25 06:01:26 2459025.751 - 2459025.751 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
145077 2020-06-25 06:01:26 2459025.751 17.436 0.077 18.59 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2020-06-23 06:43:12 - 2020-06-23 06:43:12 2459023.78 - 2459023.78 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
145076 2020-06-23 06:43:12 2459023.78 19.74 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
g-P1 PS1_GPC1 2020-06-26 06:27:22 - 2020-06-26 06:27:22 2459026.769 - 2459026.769 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
145365 2020-06-26 06:27:22 2459026.769 16.28 0.01 21 ABMag g-P1 PS1_GPC1 15 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
106560 2021-04-13 08:55:46 ZTF_AMPEL_COMPLETE J. Nordin, V. Brinnel, J. van Santen (HU Berlin) et al. AMPEL ZTF 12:25:24.186 +18:12:12.78 2021-04-11 05:37:47.712 19.78 r-ZTF PSN ZTF20abijfqq ZTF N
105589 2021-04-07 07:08:33 ZTF_AMPEL_COMPLETE J. Nordin, V. Brinnel, J. van Santen (HU Berlin) et al. AMPEL ZTF 12:25:24.187 +18:12:12.76 2021-04-03 06:26:54.816 19.45 r-ZTF PSN ZTF20abijfqq ZTF N
100339 2021-02-23 17:55:17 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 12:25:24.183 +18:12:12.83 2021-02-08 11:34:04.800 17.9 w-P1 PSN PS20emh Pan-STARRS N
78770 2020-07-28 13:52:02 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 12:25:24.180 +18:12:12.78 2020-07-26 17:44:09.600 12.94 G-Gaia PSN Gaia20dlp GaiaAlerts confirmed SN Ia in M85 N
75200 2020-06-26 14:34:46 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 12:25:24.188 +18:12:12.80 2020-06-26 06:27:21.600 16.28 g-P1 PSN PS20emh Pan-STARRS N
75063 2020-06-25 09:59:50 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 12:25:24.181 +18:12:12.52 2020-06-25 06:01:26.400 17.436 orange-ATLAS PSN ATLAS20qoq ATLAS 2020TNSTR1927....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
6976 2020-06-25 23:55:15 Steven Williams S. C. Williams (Turku), R. Kotak (Turku), P. A. Mazzali (LJMU), M. Fraser (UCD), I. Hook (Lancaster), J. Nordin (Humboldt Berlin), A. Pastorello (INAF-OAPd) None SN Ia 1 1 We obtained a spectrum with the SPRAT spectrograph on the 2m Liverpool Telescope on 2020 Jun 25.84 UT, which shows SN 2020nlb is a Type Ia supernova; we measure a velocity of ~14500km/s from the strong Si II absorption feature. There is no evidence of C II 6580,7234A absorption in the spectrum. The spectrum does not appear to suffer from significant reddening, and clear Na I D absorption is not detected. Overall, the spectrum shows some similarities to a sub-luminous Type Ia supernova. 2020TNSCR1934....1W
Related files
File Comments Last Modified (UT) Modified By
tns_2020nlb_classrep_6976_iPTF.jpg Image of the LT-SPRAT spectrum taken on 2020-06-25 20:09:36 2020-06-26 15:36:22 Steven Williams
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
6988 2020-06-25 20:09:36 LT / SPRAT S. C. Williams (Turku), R. Kotak (Turku), P. A. Mazzali (LJMU), M. Fraser (UCD), I. Hook (Lancaster), J. Nordin (Humboldt Berlin S. C. Williams None tns_2020nlb_2020-06-25.84_LT_SPRAT.txt Object 2021-06-26

Comments

TNS
System

Tue, 07/28/2020 - 13:30

Object coordinates updated

Object coordinates updated according to AT-report 78770 of Group GaiaAlerts
Previous RA, DEC: 12:25:24.188, +18:12:12.80 (186.350783378, +18.2035546275)
Updated RA, DEC: 12:25:24.180, +18:12:12.78 (186.35075, 18.20355)

TNS
System

Fri, 06/26/2020 - 14:30

Object coordinates updated

Object coordinates updated according to AT-report 75200 of Group Pan-STARRS1
Previous RA, DEC: 12:25:24.181, +18:12:12.52 (186.3507525, +18.2034775)
Updated RA, DEC: 12:25:24.188, +18:12:12.80 (186.350783378, 18.2035546275)