RA/DEC (2000)
15:59:09.652 +26:35:19.34
239.790216083 +26.5887042381
Type
SN Ia
Redshift
0.088
Related AstroNotes: 2025-248
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-28 08:11:38.688
TNS AT
Y
Public
Y
Discovery Mag
19.642
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), M. R. Alarcón, J. Licandro, P. Nichita (IAC), 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_2025svw - 2025-08-09 00:40:10 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-N_GOTO-2_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-HKO_ATLAS-02_orange
 PS1_GPC1_r
 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
21731 2025-08-09 00:40:10 ESO-NTT / EFOSC2-NTT 900 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter ePESSTO+ tns_2025svw_2025-08-09_00-40-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025svw_2025-08-09_00-40-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-07-21 22:26:34 - 2025-08-13 21:20:25 2460878.435121 - 2460901.389179 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508587 2025-08-13 21:20:25 2460901.389179 18.77 0.11 ABMag L-GOTO GOTO-N_GOTO-2 180
508586 2025-07-21 22:26:34 2460878.435121 19.4 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-07-04 08:12:44 - 2025-07-04 08:12:44 2460860.8421759 - 2460860.8421759 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507179 2025-07-04 08:12:44 2460860.8421759 21.101 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-01 05:37:36 - 2025-08-03 04:37:13 2460888.7344444 - 2460890.6925116 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507181 2025-08-03 04:37:13 2460890.6925116 18.8502 0.114965 ABMag g-ZTF P48_ZTF-Cam
507180 2025-08-01 05:37:36 2460888.7344444 19.0805 0.096112 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-07-27 07:20:41 - 2025-07-28 08:11:39 2460883.80603 - 2460884.84142 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506590 2025-07-28 08:11:39 2460884.84142 19.642 0.19 19.7 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
506589 2025-07-27 07:20:41 2460883.80603 19.67 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
r-P1 PS1_GPC1 2025-08-19 06:39:06 - 2025-08-19 06:39:06 2460906.77715 - 2460906.77715 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510292 2025-08-19 06:39:06 2460906.77715 18.89 0.07 20.6 ABMag r-P1 PS1_GPC1 27 Robot
w-P1 PS1_GPC1 2025-07-29 07:42:36 - 2025-07-29 07:42:36 2460885.82125 - 2460885.82125 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507594 2025-07-29 07:42:36 2460885.82125 19.79 0.03 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
266602 2025-08-19 16:56:29 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 15:59:09.652 +26:35:19.34 2025-08-19 06:39:05.760 18.89 r-P1 PSN PS25fxx Pan-STARRS N
265728 2025-08-14 06:15:19 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 15:59:09.738 +26:35:19.37 2025-08-13 21:20:25.152 18.77 L-GOTO Other GOTO25fts GOTO N
265111 2025-08-05 21:27:42 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:59:09.659 +26:35:19.31 2025-07-29 07:42:36.000 19.79 w-P1 PSN PS25fxx Pan-STARRS N
264845 2025-08-03 11:02:35 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 15:59:09.665 +26:35:19.06 2025-08-01 05:37:35.996 19.0805 g-ZTF PSN ZTF25abggutl ZTF N
264568 2025-08-01 08:31:07 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:59:09.657 +26:35:19.30 2025-07-28 08:11:38.688 19.642 orange-ATLAS PSN ATLAS25ird ATLAS 2025TNSTR3022....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
21731 2025-08-09 18:19:17 ePESSTOplus_Bot1 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani, Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.088 1 ePESSTO+ 2025TNSCR3127....1v
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
21731 2025-08-09 00:40:10 ESO-NTT / EFOSC2-NTT 900 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter ePESSTO+ tns_2025svw_2025-08-09_00-40-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025svw_2025-08-09_00-40-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 266602 of Group Pan-STARRS
Previous RA, DEC: 15:59:09.659, +26:35:19.31 (239.790244987, +26.588697342)
Updated RA, DEC: 15:59:09.652, +26:35:19.34 (239.790216083, +26.5887042381)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 265111 of Group Pan-STARRS
Previous RA, DEC: 15:59:09.665, +26:35:19.06 (239.7902705, +26.5886266)
Updated RA, DEC: 15:59:09.659, +26:35:19.31 (239.790244987, +26.588697342)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 264845 of Group ZTF
Previous RA, DEC: 15:59:09.657, +26:35:19.30 (239.790238333, +26.5886941667)
Updated RA, DEC: 15:59:09.665, +26:35:19.06 (239.7902705, +26.5886266)