RA/DEC (2000)
15:05:17.334 -10:18:13.74
226.322223269 -10.3038164818
Type
SN Ia
Redshift
0.034
Related AstroNotes: 2025-157
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-25 09:33:10.656
TNS AT
Y
Public
Y
Discovery Mag
19.118
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_2025lyf - 2025-05-26 06:16:10 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-S_GOTO-4_L
 ATLAS-CHL_ATLAS-04_cyan
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-HKO_ATLAS-02_cyan
 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
21151 2025-05-26 06:16:10 ESO-NTT / EFOSC2-NTT 1200 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lyf_2025-05-26_06-16-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lyf_2025-05-26_06-16-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-05-24 14:00:33 - 2025-05-24 14:00:33 2460820.083724 - 2460820.083724 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491788 2025-05-24 14:00:33 2460820.083724 19.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-05-24 04:03:52 - 2025-05-24 04:03:52 2460819.66935 - 2460819.66935 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491362 2025-05-24 04:03:52 2460819.66935 19.43 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-05-27 01:18:58 - 2025-05-27 01:18:58 2460822.554835 - 2460822.554835 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491789 2025-05-27 01:18:58 2460822.554835 19.19 0.11 ABMag L-GOTO GOTO-N_GOTO-1 180
r-ZTF P48_ZTF-Cam 2025-05-25 08:23:13 - 2025-05-25 08:23:13 2460820.849456 - 2460820.849456 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491478 2025-05-25 08:23:13 2460820.849456 19.522 0.136137 20.1864 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-05-23 08:57:16 - 2025-05-25 08:21:00 2460818.8731019 - 2460820.8479167 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491477 2025-05-25 08:21:00 2460820.8479167 19.9259 0.164166 20.369 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
493139 2025-05-25 08:21:00 2460820.8479167 19.9259 0.164166 20.369 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
491476 2025-05-23 08:57:16 2460818.8731019 20.3735 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
493138 2025-05-23 08:57:16 2460818.8731019 20.3735 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-05-25 09:33:11 - 2025-05-25 09:33:11 2460820.89804 - 2460820.89804 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491363 2025-05-25 09:33:11 2460820.89804 19.118 0.168 19.5 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
w-P1 PS1_GPC1 2025-05-26 09:23:19 - 2025-05-26 09:23:19 2460821.89119 - 2460821.89119 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492587 2025-05-26 09:23:19 2460821.89119 19.37 0.04 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
257490 2025-05-31 18:18:34 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 15:05:17.333 -10:18:13.72 2025-05-25 08:21:00.003 19.9259 g-ZTF PSN ZTF25aarwoeg ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aarwoeg N
257245 2025-05-29 14:57:45 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:05:17.334 -10:18:13.74 2025-05-26 09:23:18.816 19.37 w-P1 PSN PS25dab Pan-STARRS N
256875 2025-05-27 07:00:21 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 15:05:17.302 -10:18:13.87 2025-05-27 01:18:58.176 19.19 L-GOTO Other GOTO25ddh GOTO N
256711 2025-05-25 19:47:01 ALeRCE S. Jurado,F.E. Bauer,F. Forster et al. ALeRCE ZTF 15:05:17.335 -10:18:13.69 2025-05-25 08:21:00.003 19.9259 g-ZTF PSN ZTF25aarwoeg ZTF Early SN candidate (g-rise > 0.23+-0.08 mag/day, r-rise > 0.44+-0.07 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25aarwoeg N
256663 2025-05-25 17:26:59 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:05:17.344 -10:18:13.58 2025-05-25 09:33:10.656 19.118 cyan-ATLAS PSN ATLAS25fnk 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
21151 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 0.034 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
21151 2025-05-26 06:16:10 ESO-NTT / EFOSC2-NTT 1200 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lyf_2025-05-26_06-16-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lyf_2025-05-26_06-16-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 257245 of Group Pan-STARRS
Previous RA, DEC: 15:05:17.335, -10:18:13.69 (226.32222749564, -10.30380169563)
Updated RA, DEC: 15:05:17.334, -10:18:13.74 (226.322223269, -10.3038164818)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 256711 of Group ZTF
Previous RA, DEC: 15:05:17.335, -10:18:13.69 (226.32222749564, -10.30380169563)
Updated RA, DEC: 15:05:17.335, -10:18:13.69 (226.32222749564, -10.30380169563)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 256711 of Group ZTF
Previous RA, DEC: 15:05:17.344, -10:18:13.58 (226.3222675, -10.3037725)
Updated RA, DEC: 15:05:17.335, -10:18:13.69 (226.32222749564, -10.30380169563)