RA/DEC (2000)
00:45:21.990 -54:07:55.88
11.341625 -54.132189
Type
SN Ia
Redshift
0.0267
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-07-11 03:18:43.200
TNS AT
Y
Public
Y
Discovery Mag
16.862
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, S. Srivastav, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng (Queen's University Belfast), A. Aamer (QUB/Birmingham), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)

Spectra

 SN_2023msy - 2023-07-12 01:04:21 Other / Other (MeerLICHT)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ATLAS-CHL_ATLAS-04_orange
 ATLAS-STH_ATLAS-03_orange
 Gaia_Gaia-photometric_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
15295 2023-07-12 01:04:21 Other / Other 1800 Simon de Wet Simon de Wet MeerLICHT tns_2023msy_2023-07-12_01-04-21_Other_Other_MeerLICHT.dat Object The spectrum was obtained using the Cassegrain Spectrograph (SpUpNIC) on the SAAO's 74-inch (1.9-m) telescope using a grating of 7 and a grating angle of 16.2 with an average spectral resolution of 300.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2023-07-06 08:04:24 - 2023-07-06 08:04:24 2460131.83639 - 2460131.83639 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
351811 2023-07-06 08:04:24 2460131.83639 17.21 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2023-07-11 03:18:43 - 2023-07-11 03:18:43 2460136.638 - 2460136.638 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
351812 2023-07-11 03:18:43 2460136.638 16.862 0.033 19.49 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
G-Gaia Gaia_Gaia-photometric 2023-07-18 23:28:19 - 2023-09-07 05:11:02 2460144.478 - 2460194.716 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
362770 2023-09-07 05:11:02 2460194.716 18.53 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
362769 2023-07-18 23:28:19 2460144.478 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [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
187743 2023-09-13 18:47:49 Gaia_Bot1 S.T. Hodgkin,E. Breedt,A. Delgado et al. GaiaAlerts GaiaAlerts 00:45:21.990 -54:07:55.88 2023-09-07 05:11:02.400 18.53 G-Gaia PSN Gaia23chm GaiaAlerts confirmed SN Ia N
182055 2023-07-11 08:09:15 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 00:45:21.984 -54:07:55.77 2023-07-11 03:18:43.200 16.862 orange-ATLAS PSN ATLAS23nul ATLAS 2023TNSTR1627....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
15220 2023-07-16 12:22:10 Orapeleng Mogawana Orapeleng Mogawana(UCT/SAAO), Simon de Wet (UCT/SAAO) MeerLICHT SN Ia 0.0267 1 BlackGEM, MeerLICHT Spectral template matching using SNID (Blondin & Tonry 2007) shows a good match with a normal type Ia supernova observed approximately 9 days before maximum brightness. The reported redshift is estimated from SNID. 2023TNSCR1690....1M
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
15295 2023-07-12 01:04:21 Other / Other 1800 Simon de Wet Simon de Wet MeerLICHT tns_2023msy_2023-07-12_01-04-21_Other_Other_MeerLICHT.dat Object The spectrum was obtained using the Cassegrain Spectrograph (SpUpNIC) on the SAAO's 74-inch (1.9-m) telescope using a grating of 7 and a grating angle of 16.2 with an average spectral resolution of 300.

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 187743 of Group GaiaAlerts
Previous RA, DEC: 00:45:21.984, -54:07:55.77 (11.3416008333, -54.1321575)
Updated RA, DEC: 00:45:21.990, -54:07:55.88 (11.341625, -54.132189)