RA/DEC (2000)
15:55:28.840 +44:24:19.75
238.870167288 +44.4054872438
Type
SLSN-II
Redshift
0.0875
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-06 09:48:04.896
TNS AT
Y
Public
Y
Discovery Mag
18.849
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, J. Tweddle (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_2025jxk - 2025-06-24 00:00:00 Keck1 / LRIS (ZTF)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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_i
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_orange
   
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
21417 2025-06-24 00:00:00 Keck1 / LRIS 300 Jean Somalwar Jean Somalwar ZTF tns_2025jxk_2025-06-24_00-00-00_Keck1_LRIS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2025-05-03 20:52:58 - 2025-05-21 20:07:23 2460799.37011 - 2460817.33846 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
489551 2025-05-21 20:07:23 2460817.33846 18.71 ABMag Clear- LAST_LAST-Cam 400
489550 2025-05-03 20:52:58 2460799.37011 20.02 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-04-28 00:02:31 - 2025-05-08 00:12:51 2460793.501747 - 2460803.508922 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487421 2025-05-08 00:12:51 2460803.508922 17.63 0.05 ABMag L-GOTO GOTO-N_GOTO-2 180
487420 2025-04-28 00:02:31 2460793.501747 19.8 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2025-05-12 12:14:05 - 2025-05-12 12:14:05 2460808.00978 - 2460808.00978 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488721 2025-05-12 12:14:05 2460808.00978 17.76 0.09 20.7 ABMag i-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2025-05-03 09:57:43 - 2025-05-03 09:57:43 2460798.915081 - 2460798.915081 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487557 2025-05-03 09:57:43 2460798.915081 20.6607 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-05-09 06:28:53 - 2025-05-09 10:51:11 2460804.7700579 - 2460804.9522106 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487559 2025-05-09 10:51:11 2460804.9522106 17.3034 0.0375414 ABMag g-ZTF P48_ZTF-Cam
487558 2025-05-09 06:28:53 2460804.7700579 17.3009 0.0388432 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-05-04 11:08:23 - 2025-05-06 09:48:05 2460799.96416 - 2460801.90839 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486995 2025-05-06 09:48:05 2460801.90839 18.849 0.159 19.16 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
486994 2025-05-04 11:08:23 2460799.96416 19.33 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 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
255693 2025-05-21 20:44:00 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 15:55:28.870 +44:24:19.72 2025-05-21 20:07:22.944 18.71 Clear- PSN LAST N
255241 2025-05-17 13:52:33 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:55:28.840 +44:24:19.75 2025-05-12 12:14:04.992 17.76 i-P1 PSN PS25ctb Pan-STARRS N
254629 2025-05-09 11:57:29 Fritz Nabeel Rehemtulla (CIERA, NU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 15:55:28.843 +44:24:19.78 2025-05-09 06:28:53.002 17.3009 g-ZTF PSN ZTF25aaprtxj ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
254571 2025-05-08 10:57:41 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 15:55:28.856 +44:24:19.51 2025-05-08 00:12:50.688 17.63 L-GOTO Other GOTO25cjl GOTO N
254307 2025-05-06 17:27:11 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 15:55:28.856 +44:24:19.97 2025-05-06 09:48:04.896 18.849 orange-ATLAS PSN ATLAS25etu ATLAS 2025TNSTR1683....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
21417 2025-06-27 17:43:33 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SLSN-II 0.0875 1 ZTF 2025TNSCR2444....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
21417 2025-06-24 00:00:00 Keck1 / LRIS 300 Jean Somalwar Jean Somalwar ZTF tns_2025jxk_2025-06-24_00-00-00_Keck1_LRIS_ZTF.ascii Object

Comments

TNS
System

Sat, 05/17/2025 - 13:52

Object coordinates updated

Object coordinates updated according to AT-report 255241 of Group Pan-STARRS
Previous RA, DEC: 15:55:28.843, +44:24:19.78 (238.8701791, +44.4054931)
Updated RA, DEC: 15:55:28.840, +44:24:19.75 (238.870167288, +44.4054872438)

TNS
System

Fri, 05/09/2025 - 11:57

Object coordinates updated

Object coordinates updated according to AT-report 254629 of Group ZTF
Previous RA, DEC: 15:55:28.856, +44:24:19.97 (238.870235385, +44.4055484615)
Updated RA, DEC: 15:55:28.843, +44:24:19.78 (238.8701791, +44.4054931)