RA/DEC (2000)
13:34:22.033 -23:43:51.45
203.591805 -23.7309573
Type
SN Icn
Redshift
0.031
Discovery ReportClassification Report
Related AstroNotes: 2023-75, 2023-88
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-04-01 23:27:22.176
TNS AT
Y
Public
Y
Discovery Mag
18.159
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), K. W. Smith, S. Srivastav, D. R. Young, S. J. Smartt, J. Gillanders, M. Fulton, M. McCollum, T. Moore, J. Weston (Queen's University Belfast), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM/MPA), M. Nicholl (Birmingham), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2023emq - 2023-04-03 16:29:31 FTS / FLOYDS-S (Global SN Project)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌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
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌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),0 (observed)

Light curves

 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_r
   
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
14704 2023-04-03 16:29:31 FTS / FLOYDS-S 3600 Las Cumbres Observatory Global SN Project tns_2023emq_2023-04-03_16-29-31_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2023emq_2023-04-03_16-29-31_FTS_FLOYDS-S_Global_SN_Project.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-STH_ATLAS-03 2023-03-30 22:30:41 - 2023-04-01 23:27:22 2460034.43797 - 2460036.47734 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
334626 2023-04-01 23:27:22 2460036.47734 18.159 0.106 19.16 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
334625 2023-03-30 22:30:41 2460034.43797 19.08 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2023-03-29 08:05:16 - 2023-04-09 08:32:24 2460032.8369907 - 2460043.8558333 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
335258 2023-04-09 08:32:24 2460043.8558333 17.6904 0.058166 18.8454 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
335257 2023-03-29 08:05:16 2460032.8369907 19.8607 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
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
174011 2023-04-09 20:23:22 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 13:34:22.033 -23:43:51.45 2023-04-09 08:32:23.997 17.6904 r-ZTF PSN LEDA 797708 ZTF23aaemtdr ALeRCE Early SN candidate (r-rise > 0.20+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF23aaemtdr N
173633 2023-04-02 19:38:37 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 13:34:22.033 -23:43:51.28 2023-04-01 23:27:22.176 18.159 orange-ATLAS PSN ATLAS23ftq ATLAS 2023TNSTR.698....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
14630 2023-04-06 19:32:41 Craig Pellegrino Craig Pellegrino, Estefania Padilla Gonzalez, Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Giacomo Terreran (UCSB/LCO) Global SN Project SN Icn 0.031 1 Global SN Project The spectrum is blue and relatively featureless with narrow emission line of C III 5696 Å as well as a blend of C III 4650 Å and He II 4686 Å at z=0.031, consistent with other Type Icn supernovae around maximum light. The most recent g-band magnitude is 17.1 (-18.6 at this redshift). The light curve indicates the supernova is around maximum light. Further follow-up is encouraged. 2023TNSCR.725....1P
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
14704 2023-04-03 16:29:31 FTS / FLOYDS-S 3600 Las Cumbres Observatory Global SN Project tns_2023emq_2023-04-03_16-29-31_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2023emq_2023-04-03_16-29-31_FTS_FLOYDS-S_Global_SN_Project.fits Object

Comments

TNS
System

Sun, 04/09/2023 - 19:30

Object coordinates updated

Object coordinates updated according to AT-report 174011 of Group ZTF
Previous RA, DEC: 13:34:22.033, -23:43:51.28 (203.591803, -23.73091)
Updated RA, DEC: 13:34:22.033, -23:43:51.45 (203.591805, -23.7309573)