RA/DEC (2000)
15:49:32.583 +20:38:43.73
237.385762818 +20.6454795903
Type
SN Ia
Redshift
0.015974
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-05-18 00:35:13.344
TNS AT
Y
Public
Y
Discovery Mag
18.42
Filter
L-GOTO
Reporter/s
A. Kumar, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, D. O'Neill, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025krk - 2025-05-19 09:23:37 P60 / SEDM (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
   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_w
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌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
21057 2025-05-19 09:23:37 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025krk_2025-05-19_09-23-37.429676_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-03-04 02:50:27 - 2025-05-17 20:18:54 2460373.61837 - 2460813.34646 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505259 2025-05-17 20:18:54 2460813.34646 18.98 ABMag Clear- LAST_LAST-Cam 400
505258 2024-03-04 02:50:27 2460373.61837 21.93 ABMag Clear- LAST_LAST-Cam 7940 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-05-17 00:09:23 - 2025-05-17 00:09:23 2460812.506522 - 2460812.506522 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488909 2025-05-17 00:09:23 2460812.506522 18.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
w-P1 PS2_GPC2 2025-05-30 06:37:40 - 2025-05-30 06:37:40 2460825.77616 - 2460825.77616 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493293 2025-05-30 06:37:40 2460825.77616 15.56 0 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-05-18 00:35:13 - 2025-05-18 00:35:13 2460813.524458 - 2460813.524458 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488910 2025-05-18 00:35:13 2460813.524458 18.42 0.16 ABMag L-GOTO GOTO-N_GOTO-1 180
r-ZTF P48_ZTF-Cam 2025-05-15 08:33:50 - 2025-05-19 08:50:14 2460810.8568287 - 2460814.8682176 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488975 2025-05-19 08:50:14 2460814.8682176 17.7648 0.048181 ABMag r-ZTF P48_ZTF-Cam
488973 2025-05-15 08:33:50 2460810.8568287 20.0531 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-05-19 07:34:43 - 2025-05-19 07:34:43 2460814.8157755 - 2460814.8157755 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488974 2025-05-19 07:34:43 2460814.8157755 17.9644 0.0625132 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-05-17 11:55:46 - 2025-05-17 11:55:46 2460812.99706 - 2460812.99706 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
489030 2025-05-17 11:55:46 2460812.99706 19.17 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-05-19 11:37:50 - 2025-05-19 11:37:50 2460814.98461 - 2460814.98461 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
489031 2025-05-19 11:37:50 2460814.98461 17.902 0.088 19.37 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
g-P1 PS1_GPC1 2025-05-19 12:40:15 - 2025-05-19 12:40:15 2460815.02795 - 2460815.02795 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
489062 2025-05-19 12:40:15 2460815.02795 17.84 0.04 21 ABMag g-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 ADS Bibcode Unreal Auto classification
263893 2025-07-26 18:55:24 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 15:49:32.616 +20:38:43.96 2025-05-17 20:18:54.144 18.98 Clear- PSN LAST N
257598 2025-06-01 21:47:56 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:49:32.583 +20:38:43.73 2025-05-30 06:37:40.224 15.56 w-P1 PSN PS25cuc Pan-STARRS N
255449 2025-05-19 16:02:19 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 15:49:32.601 +20:38:43.70 2025-05-19 12:40:14.880 17.84 g-P1 PSN PS25cuc Pan-STARRS N
255435 2025-05-19 14:20:47 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:49:32.614 +20:38:43.84 2025-05-19 11:37:50.304 17.902 orange-ATLAS PSN ATLAS25fcn ATLAS N
255408 2025-05-19 09:05:42 Fritz Nabeel Rehemtulla (CIERA,NU),Jesper Sollerman (SU) et al. ZTF ZTF 15:49:32.597 +20:38:43.52 2025-05-19 07:34:43.003 17.9644 g-ZTF PSN ZTF25aaqoukg ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
255366 2025-05-19 01:52:14 GOTO_bot A. Kumar,K. Ackley,M. Dyer et al. GOTO GOTO 15:49:32.609 +20:38:43.85 2025-05-18 00:35:13.344 18.42 L-GOTO Other GOTO25ctw GOTO 2025TNSTR1836....1K N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21057 2025-05-19 10:08:52 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.015974 1 ZTF 2025TNSCR1843....1F
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
21057 2025-05-19 09:23:37 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025krk_2025-05-19_09-23-37.429676_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 06/01/2025 - 21:47

Object coordinates updated

Object coordinates updated according to AT-report 257598 of Group Pan-STARRS
Previous RA, DEC: 15:49:32.601, +20:38:43.70 (237.385836609, +20.6454720913)
Updated RA, DEC: 15:49:32.583, +20:38:43.73 (237.385762818, +20.6454795903)

TNS
System

Mon, 05/19/2025 - 16:02

Object coordinates updated

Object coordinates updated according to AT-report 255449 of Group Pan-STARRS
Previous RA, DEC: 15:49:32.597, +20:38:43.52 (237.3858225, +20.6454232)
Updated RA, DEC: 15:49:32.601, +20:38:43.70 (237.385836609, +20.6454720913)

TNS
System

Mon, 05/19/2025 - 09:13

Object coordinates updated

Object coordinates updated according to AT-report 255408 of Group ZTF
Previous RA, DEC: 15:49:32.609, +20:38:43.85 (237.385869, +20.645514)
Updated RA, DEC: 15:49:32.597, +20:38:43.52 (237.3858225, +20.6454232)