RA/DEC (2000)
19:52:06.378 -30:49:55.21
298.026576747 -30.8320015008
Type
SN Ia
Redshift
0.02
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-03-26 03:15:41.760
TNS AT
Y
Public
Y
Discovery Mag
17.44
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_2025fvt - 2025-04-01 01:26:44 Lesedi / Mookodi (BlackGEM)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

 ▌GOTO-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌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
20677 2025-04-01 01:26:44 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, S. Chandra, D. Cunnama, M. Hlakola, P. Rabe, R. Julie (all SAAO) Simon de Wet BlackGEM tns_2025fvt_2025-04-01_01-26-44_Lesedi_Mookodi_BlackGEM.csv Object The spectrum was taken with the SAAO's 1-m Lesedi telescope with the Mookodi low-resolution spectrograph and imager [1] as part of the “IO” rapid follow-up program [2]. The spectrum was taken with the widest (4") slit width which resulted in a spectral resolution of R ~ 200 at 6000 Angstrom. [1] https://doi.org/10.1117/1.JATIS.10.2.025005 [2] https://doi.org/10.1117/12.3015250
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-03-13 18:03:52 - 2025-03-13 18:03:52 2460748.252685 - 2460748.252685 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480649 2025-03-13 18:03:52 2460748.252685 18.5 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-04-02 17:10:24 - 2025-04-02 17:10:24 2460768.215564 - 2460768.215564 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480650 2025-04-02 17:10:24 2460768.215564 16.56 0.02 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-03-20 08:51:37 - 2025-03-20 08:51:37 2460754.86918 - 2460754.86918 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
479044 2025-03-20 08:51:37 2460754.86918 18.57 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-03-26 03:15:42 - 2025-03-26 03:15:42 2460760.6359 - 2460760.6359 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
479045 2025-03-26 03:15:42 2460760.6359 17.44 0.079 19.13 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2024-09-28 00:16:35 - 2025-04-22 07:09:01 2460581.5115162 - 2460787.7979282 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
483333 2025-04-22 07:09:01 2460787.7979282 17.62 0.03 20.52 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
483332 2024-09-28 00:16:35 2460581.5115162 21.37 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
w-P1 PS1_GPC1 2025-04-25 14:29:39 - 2025-04-25 14:29:39 2460791.10392 - 2460791.10392 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491760 2025-04-25 14:29:39 2460791.10392 17.59 0.05 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
256859 2025-05-26 22:04:46 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 19:52:06.378 -30:49:55.21 2025-04-25 14:29:38.688 17.59 w-P1 PSN PS25cyf Pan-STARRS N
252256 2025-04-22 08:19:09 BlackGEM_Bot1 F. Stoppa, H. Tranin, D. Pieterse et al. BlackGEM BlackGEM 19:52:06.368 -30:49:55.15 2025-04-22 07:09:01.000 17.62 BG-q-BlackGem 1 PSN BGEM J195206.36-304955.1 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025fvt_atrep_252256_BlackGEM.pdf Finding Chart 2025-04-22 08:19:11 BlackGEM_Bot1
250855 2025-04-04 08:45:34 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 19:52:06.365 -30:49:55.18 2025-04-02 17:10:24.384 16.56 L-GOTO Other GOTO25bkv GOTO N
249952 2025-03-26 20:45:38 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 19:52:06.369 -30:49:55.32 2025-03-26 03:15:41.760 17.44 orange-ATLAS PSN ATLAS25dcc ATLAS 2025TNSTR1145....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
20677 2025-04-01 07:29:18 Simon de Wet Simon de Wet BlackGEM SN Ia 0.02 1 BlackGEM Next Generation SuperFit (NGSF) shows a good fit with the Type Ia SN 2015N at z=0.02. 2025TNSCR1233....1D
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
20677 2025-04-01 01:26:44 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, S. Chandra, D. Cunnama, M. Hlakola, P. Rabe, R. Julie (all SAAO) Simon de Wet BlackGEM tns_2025fvt_2025-04-01_01-26-44_Lesedi_Mookodi_BlackGEM.csv Object The spectrum was taken with the SAAO's 1-m Lesedi telescope with the Mookodi low-resolution spectrograph and imager [1] as part of the “IO” rapid follow-up program [2]. The spectrum was taken with the widest (4") slit width which resulted in a spectral resolution of R ~ 200 at 6000 Angstrom. [1] https://doi.org/10.1117/1.JATIS.10.2.025005 [2] https://doi.org/10.1117/12.3015250

Comments

TNS
System

Mon, 05/26/2025 - 22:04

Object coordinates updated

Object coordinates updated according to AT-report 256859 of Group Pan-STARRS
Previous RA, DEC: 19:52:06.368, -30:49:55.15 (298.026533, -30.831986)
Updated RA, DEC: 19:52:06.378, -30:49:55.21 (298.026576747, -30.8320015008)

TNS
System

Tue, 04/22/2025 - 08:19

Object coordinates updated

Object coordinates updated according to AT-report 252256 of Group BlackGEM
Previous RA, DEC: 19:52:06.369, -30:49:55.32 (298.026536154, -30.8320346154)
Updated RA, DEC: 19:52:06.368, -30:49:55.15 (298.026533, -30.831986)