RA/DEC (2000)
23:05:18.880 -12:29:40.68
346.328666 -12.4946345
Type
SN Ia
Redshift
0.08
Related AstroNotes: 2025-157
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-24 09:22:25.248
TNS AT
Y
Public
Y
Discovery Mag
18.34
Filter
cyan-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_2025lwn - 2025-05-26 08:52:16 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
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Show [O I] at z=vexp= km/s
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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
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Show Å at z=vexp= km/s
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Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
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   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-CHL_ATLAS-04_orange
 ATLAS-CHL_ATLAS-04_cyan
 P48_ZTF-Cam_r
 P48_ZTF-Cam_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
21146 2025-05-26 08:52:16 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lwn_2025-05-26_08-52-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lwn_2025-05-26_08-52-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-05-17 18:32:37 - 2025-05-17 18:32:37 2460813.27265 - 2460813.27265 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491657 2025-05-17 18:32:37 2460813.27265 18.93 0.19 ABMag L-GOTO GOTO-S_GOTO-3 180
L-GOTO GOTO-N_GOTO-2 2024-12-20 19:47:09 - 2024-12-20 19:47:09 2460665.324412 - 2460665.324412 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491656 2024-12-20 19:47:09 2460665.324412 19 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-05-22 10:31:59 - 2025-05-22 10:31:59 2460817.93888 - 2460817.93888 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491147 2025-05-22 10:31:59 2460817.93888 18.12 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-05-24 09:22:25 - 2025-05-24 09:22:25 2460819.89057 - 2460819.89057 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491148 2025-05-24 09:22:25 2460819.89057 18.34 0.122 19.14 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
r-ZTF P48_ZTF-Cam 2025-06-06 11:04:41 - 2025-06-06 11:04:41 2460832.9615856 - 2460832.9615856 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494611 2025-06-06 11:04:41 2460832.9615856 18.864 0.0477557 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-06-12 11:03:34 - 2025-06-12 11:03:34 2460838.9608102 - 2460838.9608102 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494612 2025-06-12 11:03:34 2460838.9608102 19.1411 0.215351 ABMag g-ZTF P48_ZTF-Cam
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
258230 2025-06-12 16:40:55 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 23:05:18.880 -12:29:40.68 2025-06-06 11:04:40.995 18.864 r-ZTF PSN ZTF25aausegz ZTF N
256813 2025-05-26 10:28:16 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 23:05:18.894 -12:29:40.75 2025-05-17 18:32:36.960 18.93 L-GOTO Other GOTO25dcp GOTO N
256550 2025-05-25 05:31:53 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 23:05:18.825 -12:29:41.23 2025-05-24 09:22:25.248 18.34 cyan-ATLAS PSN ATLAS25fin 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
21146 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 0.08 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
21146 2025-05-26 08:52:16 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lwn_2025-05-26_08-52-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lwn_2025-05-26_08-52-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 258230 of Group ZTF
Previous RA, DEC: 23:05:18.825, -12:29:41.23 (346.328436154, -12.4947869231)
Updated RA, DEC: 23:05:18.880, -12:29:40.68 (346.328666, -12.4946345)