RA/DEC (2000)
16:21:50.625 +32:18:33.96
245.460939229 +32.3094344653
Type
SN II
Redshift
0.042
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-02-27 13:40:24.672
TNS AT
Y
Public
Y
Discovery Mag
19.404
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025cwk - 2025-02-13 04:07:00 NOT / ALFOSC (NUTS)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

 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-1_L
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_z
   
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
20566 2025-02-13 04:07:00 NOT / ALFOSC 1800 K. Muinonen (NOT), M. Granvik (NOT) G. Valerin NUTS tns_2025cwk_2025-02-13_04-07-00_NOT_ALFOSC_NUTS.dat Object Low signal to noise spectrum obtained under poor weather conditions.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-03-13 02:38:10 - 2025-03-18 00:47:27 2460382.60984 - 2460752.53295 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
476613 2025-03-18 00:47:27 2460752.53295 18.85 ABMag Clear- LAST_LAST-Cam 400
476612 2024-03-13 02:38:10 2460382.60984 21.79 ABMag Clear- LAST_LAST-Cam 6920 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-02-25 04:25:43 - 2025-02-28 05:53:05 2460731.68452 - 2460734.745196 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
472753 2025-02-28 05:53:05 2460734.745196 18.7 0.09 ABMag L-GOTO GOTO-N_GOTO-1 180
472752 2025-02-25 04:25:43 2460731.68452 19.6 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-02-26 14:26:18 - 2025-02-26 14:26:18 2460733.1016 - 2460733.1016 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
472341 2025-02-26 14:26:18 2460733.1016 19.46 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-02-27 13:40:25 - 2025-02-27 13:40:25 2460734.06973 - 2460734.06973 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
472342 2025-02-27 13:40:25 2460734.06973 19.404 0.191 19.56 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
z-P1 PS1_GPC1 2025-03-21 12:43:40 - 2025-03-21 12:43:40 2460756.03032 - 2460756.03032 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
478701 2025-03-21 12:43:40 2460756.03032 18.65 0.08 20.4 ABMag z-P1 PS1_GPC1 27 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 Bibcode Unreal Auto classification
249802 2025-03-24 20:23:39 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 16:21:50.625 +32:18:33.96 2025-03-21 12:43:39.648 18.65 z-P1 PSN PS25ave Pan-STARRS N
248715 2025-03-18 05:17:23 LAST_Bot1 R. Konno (WIS),E. Zimmerman (WIS),A. Horowicz (WIS) et al. LAST LAST 16:21:50.654 +32:18:33.21 2025-03-18 00:47:26.880 18.85 Clear- PSN LAST N
246338 2025-02-28 16:22:10 GOTO_bot T. Killestein,D. O'Neill,K. Ackley et al. GOTO GOTO 16:21:50.613 +32:18:34.29 2025-02-28 05:53:05.280 18.7 L-GOTO Other GOTO25avq GOTO N
246171 2025-02-27 18:25:57 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:21:50.617 +32:18:34.22 2025-02-27 13:40:24.672 19.404 orange-ATLAS PSN ATLAS25ceo ATLAS 2025TNSTR.808....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
20566 2025-03-13 13:24:30 Maximilian Stritzinger M. Stritzinger (Aarhus), G. Valerin (Padua), C. Ashall (Hawaii), C. R. Burns (Carnegie), W. Hoogendam (Hawaii), X. Huangfei (FSU), Y.E. Hsiao (FSU), S. Kumar (Un. Virginia), K. Medler (Hawaii) , N. Morrell (Las Campanas), C. Pfeffer (VT) NUTS SN II 0.042 1 Add NUTS, POISE Comparison of the NOT (+ALFOSC) spectrum of supernova (SN) 2015cwk with a library of template spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) suggests a reasonable match with SN 1979C at +13 days. Based on light curves obtained by POISE with the Swope telescope located at Las Campanas Observatory, at the time the spectrum of SN 2025cwk was obtained it was around two weeks past maximum. 2025TNSCR.979....1S
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
20566 2025-02-13 04:07:00 NOT / ALFOSC 1800 K. Muinonen (NOT), M. Granvik (NOT) G. Valerin NUTS tns_2025cwk_2025-02-13_04-07-00_NOT_ALFOSC_NUTS.dat Object Low signal to noise spectrum obtained under poor weather conditions.

Comments

TNS
System

Mon, 03/24/2025 - 20:23

Object coordinates updated

Object coordinates updated according to AT-report 249802 of Group Pan-STARRS
Previous RA, DEC: 16:21:50.617, +32:18:34.22 (245.460905, +32.309505)
Updated RA, DEC: 16:21:50.625, +32:18:33.96 (245.460939229, +32.3094344653)