RA/DEC (2000)
21:50:29.567 -13:39:20.30
327.6231954 -13.6556396
Type
SN Ia
Redshift
0.09
Related AstroNotes: 2025-157
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-23 14:02:17.088
TNS AT
Y
Public
Y
Discovery Mag
19.213
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)

Spectra

 SN_2025lwt - 2025-05-26 07:59:58 ESO-NTT / EFOSC2-NTT (ePESSTO+)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-S_GOTO-3_L
 GOTO-N_GOTO-2_L
 ATLAS-STH_ATLAS-03_orange
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-MLO_ATLAS-01_orange
 Other_Other_Other
   
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
21147 2025-05-26 07:59:58 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lwt_2025-05-26_07-59-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lwt_2025-05-26_07-59-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-05-24 17:43:14 - 2025-05-24 17:43:14 2460820.238361 - 2460820.238361 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491840 2025-05-24 17:43:14 2460820.238361 19.16 0.14 ABMag L-GOTO GOTO-S_GOTO-3 180
L-GOTO GOTO-N_GOTO-2 2025-05-15 04:46:29 - 2025-05-15 04:46:29 2460810.698953 - 2460810.698953 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491839 2025-05-15 04:46:29 2460810.698953 18.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-05-16 02:07:35 - 2025-05-16 02:07:35 2460811.5886 - 2460811.5886 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491159 2025-05-16 02:07:35 2460811.5886 18.73 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-05-29 11:07:38 - 2025-05-29 11:07:38 2460824.9636343 - 2460824.9636343 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492520 2025-05-29 11:07:38 2460824.9636343 19.2932 0.132882 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-05-26 11:06:55 - 2025-05-26 11:06:55 2460821.9631366 - 2460821.9631366 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492519 2025-05-26 11:06:55 2460821.9631366 19.4169 0.152945 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-05-23 14:02:17 - 2025-05-23 14:02:17 2460819.08492 - 2460819.08492 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491160 2025-05-23 14:02:17 2460819.08492 19.213 0.187 19.36 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
Other- Other_Other 2017-08-20 03:16:29 - 2025-05-30 07:54:58 2457985.63645 - 2460825.82984 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492911 2025-05-30 07:54:58 2460825.82984 18.8 20 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
492910 2025-05-30 07:37:50 2460825.81794 19.5 20 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
492909 2017-08-20 03:16:29 2457985.63645 20.4 VegaMag Other- Other_Other 540 Robot [Last non detection] MASTER-OAFA
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
257382 2025-05-30 11:29:57 MASTER Ya.Kechin,V.Lipunov,E.Gorbovskoy et al. MASTER MASTER 21:50:29.540 -13:39:20.70 2025-05-30 07:37:50.016 19.5 Other- PSN MASTER OT J215029.54-133920.7 MASTER N
257214 2025-05-29 12:17:44 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 21:50:29.567 -13:39:20.30 2025-05-26 11:06:55.002 19.4169 g-ZTF PSN ZTF25aasfmrt ZTF N
256898 2025-05-27 08:49:09 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 21:50:29.570 -13:39:20.41 2025-05-24 17:43:14.304 19.16 L-GOTO Other GOTO25ddj GOTO N
256556 2025-05-25 05:41:12 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:50:29.566 -13:39:20.49 2025-05-23 14:02:17.088 19.213 orange-ATLAS PSN ATLAS25fiv ATLAS 2025TNSTR1950....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
21147 2025-05-26 16:54:26 ePESSTOplus_Bot1 Callum Francis Aster, Stefano Pio Cosentino, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN Ia 0.09 1 ePESSTO+ 2025TNSCR1978....1A
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
21147 2025-05-26 07:59:58 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lwt_2025-05-26_07-59-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lwt_2025-05-26_07-59-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 257214 of Group ZTF
Previous RA, DEC: 21:50:29.566, -13:39:20.49 (327.62319, -13.655692)
Updated RA, DEC: 21:50:29.567, -13:39:20.30 (327.6231954, -13.6556396)