RA/DEC (2000)
15:12:07.470 -14:37:50.90
228.031125918 -14.6308057355
Type
SN Ia
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-04-04 01:34:45.984
TNS AT
Y
Public
Y
Discovery Mag
18.477
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_2025gsk - 2025-04-12 14:35:38 UH88 / SNIFS (SCAT)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

 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
20757 2025-04-12 14:35:38 UH88 / SNIFS 1700 M. E. Huber SCAT tns_2025gsk_2025-04-12_14-35-38_UH88_SNIFS_SCAT.dat Object Poor dichroic correction for ~495-520 nm
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-03-27 02:39:21 - 2025-03-27 02:39:21 2460761.610659 - 2460761.610659 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480778 2025-03-27 02:39:21 2460761.610659 18.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-04-01 06:59:17 - 2025-04-01 06:59:17 2460766.79117 - 2460766.79117 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480543 2025-04-01 06:59:17 2460766.79117 19.29 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-04-04 01:34:46 - 2025-04-04 01:34:46 2460769.56581 - 2460769.56581 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480544 2025-04-04 01:34:46 2460769.56581 18.477 0.104 19.34 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-04-01 04:00:44 - 2025-04-01 04:00:44 2460766.667183 - 2460766.667183 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480779 2025-04-01 04:00:44 2460766.667183 19.38 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-04-29 02:29:19 - 2025-04-29 02:29:19 2460794.6036921 - 2460794.6036921 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484636 2025-04-29 02:29:19 2460794.6036921 18.65 0.04 20.84 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-04-22 03:36:41 - 2025-04-22 03:36:41 2460787.6504745 - 2460787.6504745 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484635 2025-04-22 03:36:41 2460787.6504745 20.89 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2025-04-07 08:42:43 - 2025-04-07 11:36:43 2460772.8629977 - 2460772.983831 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481196 2025-04-07 11:36:43 2460772.983831 18.1956 0.0641071 ABMag r-ZTF P48_ZTF-Cam
481195 2025-04-07 08:42:43 2460772.8629977 18.2746 0.0698652 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-03-30 11:50:45 - 2025-03-30 11:50:45 2460764.9935764 - 2460764.9935764 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481194 2025-03-30 11:50:45 2460764.9935764 19.0121 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
w-P1 PS1_GPC1 2025-04-01 12:01:29 - 2025-04-01 12:01:29 2460767.00103 - 2460767.00103 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487928 2025-04-01 12:01:29 2460767.00103 19.33 0.06 22 ABMag w-P1 PS1_GPC1 45 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
254835 2025-05-12 10:28:56 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:12:07.470 -14:37:50.90 2025-04-01 12:01:28.992 19.33 w-P1 PSN PS25cqu Pan-STARRS N
252901 2025-04-29 07:42:01 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 15:12:07.457 -14:37:51.03 2025-04-29 02:29:19.000 18.65 BG-q-BlackGem 1 PSN BGEM J151207.45-143751.0 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025gsk_atrep_252901_BlackGEM.pdf Finding Chart 2025-04-29 07:42:03 BlackGEM_Bot1
251142 2025-04-07 11:48:39 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 15:12:07.470 -14:37:50.97 2025-04-07 08:42:43.001 18.2746 r-ZTF PSN ZTF25aalufla ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
250930 2025-04-04 17:59:10 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 15:12:07.453 -14:37:50.92 2025-04-01 04:00:44.352 19.38 L-GOTO Other GOTO25bpf GOTO N
250802 2025-04-04 07:31:17 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:12:07.466 -14:37:50.72 2025-04-04 01:34:45.984 18.477 orange-ATLAS PSN ATLAS25doj ATLAS 2025TNSTR1263....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
20757 2025-04-13 09:08:11 Mark Huber M. E. Huber (IfA, UH Manoa) on behalf of the SCAT team SCAT SN Ia 0.05 1 ATLAS, SCAT Spectrum matches type Ia SN around maximum light. Classification, redshift and age from template cross-correlation with SNID (Blondin and Tonry 2007) 2025TNSCR1377....1H
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
20757 2025-04-12 14:35:38 UH88 / SNIFS 1700 M. E. Huber SCAT tns_2025gsk_2025-04-12_14-35-38_UH88_SNIFS_SCAT.dat Object Poor dichroic correction for ~495-520 nm

Comments

TNS
System

Mon, 05/12/2025 - 10:28

Object coordinates updated

Object coordinates updated according to AT-report 254835 of Group Pan-STARRS
Previous RA, DEC: 15:12:07.470, -14:37:50.97 (228.0311242, -14.630826)
Updated RA, DEC: 15:12:07.470, -14:37:50.90 (228.031125918, -14.6308057355)

TNS
System

Mon, 04/07/2025 - 11:48

Object coordinates updated

Object coordinates updated according to AT-report 251142 of Group ZTF
Previous RA, DEC: 15:12:07.466, -14:37:50.72 (228.03111, -14.6307542857)
Updated RA, DEC: 15:12:07.470, -14:37:50.97 (228.0311242, -14.630826)