RA/DEC (2000)
15:53:45.278 -01:24:31.38
238.438656807 -1.40871763398
Type
SN Ia-91T-like
Redshift
0.058
Discovery ReportClassification Report
Related AstroNotes: 2025-110
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-03-21 09:08:08.998
TNS AT
Y
Public
Y
Discovery Mag
19.0709
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025fbu - 2025-04-06 08:32:48 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

 ▌LAST_LAST-Cam_Clear
 ▌GOTO-S_GOTO-3_L
 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌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
20718 2025-04-06 08:32:48 ESO-NTT / EFOSC2-NTT 800 M. Ghendrih, C. Duffy A. Milligan, M. Smith, C. Angus ePESSTO+ tns_2025fbu_2025-04-06_08-32-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025fbu_2025-04-06_08-32-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-03-04 02:58:04 - 2025-03-24 22:44:44 2460373.62366 - 2460759.44773 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
478725 2025-03-24 22:44:44 2460759.44773 18.75 ABMag Clear- LAST_LAST-Cam 400
478724 2024-03-04 02:58:04 2460373.62366 21.63 ABMag Clear- LAST_LAST-Cam 7200 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-03-13 18:34:40 - 2025-03-13 18:34:40 2460748.274066 - 2460748.274066 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480689 2025-03-13 18:34:40 2460748.274066 18.5 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-03-27 05:08:50 - 2025-03-27 05:08:50 2460761.714475 - 2460761.714475 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480690 2025-03-27 05:08:50 2460761.714475 18.1 0.19 ABMag L-GOTO GOTO-N_GOTO-2 180
r-ZTF P48_ZTF-Cam 2025-03-20 09:49:42 - 2025-03-21 11:58:00 2460754.9095139 - 2460755.9986111 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477398 2025-03-21 11:58:00 2460755.9986111 19.4707 0.200892 ABMag r-ZTF P48_ZTF-Cam
477396 2025-03-20 09:49:42 2460754.9095139 18.2606 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-03-19 11:56:11 - 2025-03-21 09:08:09 2460753.9973495 - 2460755.8806597 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477397 2025-03-21 09:08:09 2460755.8806597 19.0709 0.155148 ABMag g-ZTF P48_ZTF-Cam
481637 2025-03-21 09:08:09 2460755.8806597 19.0709 0.155148 19.5556 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
481636 2025-03-19 11:56:11 2460753.9973495 18.8374 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-03-24 14:10:53 - 2025-03-24 14:10:53 2460759.09089 - 2460759.09089 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
478592 2025-03-24 14:10:53 2460759.09089 18.5 0.095 19.51 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-03-22 14:50:58 - 2025-03-22 14:50:58 2460757.11873 - 2460757.11873 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
478591 2025-03-22 14:50:58 2460757.11873 19.27 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-03-23 14:06:52 - 2025-03-23 14:06:52 2460758.0881 - 2460758.0881 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495228 2025-03-23 14:06:52 2460758.0881 18.74 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
258592 2025-06-14 20:39:13 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:53:45.278 -01:24:31.38 2025-03-23 14:06:51.840 18.74 w-P1 PSN PS25dka Pan-STARRS N
251333 2025-04-09 18:14:41 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 15:53:45.284 -01:24:31.43 2025-03-21 09:08:08.998 19.0709 g-ZTF PSN ZTF25aajrlbu ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aajrlbu N
250875 2025-04-04 08:52:35 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 15:53:45.278 -01:24:31.14 2025-03-27 05:08:50.208 18.1 L-GOTO Other GOTO25biy GOTO N
249821 2025-03-25 05:05:57 LAST_Bot1 E. A. Zimmerman (WIS), R. Konno (WIS), A. Horowicz (WIS) et al. LAST LAST 15:53:45.280 -01:24:30.88 2025-03-24 22:44:43.872 18.75 Clear- PSN LAST N
249758 2025-03-24 17:42:23 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 15:53:45.252 -01:24:31.19 2025-03-24 14:10:52.896 18.5 orange-ATLAS PSN ATLAS25dao ATLAS N
249142 2025-03-21 14:02:00 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 15:53:45.286 -01:24:31.25 2025-03-21 09:08:08.998 19.0709 g-ZTF PSN ZTF25aajrlbu ZTF 2025TNSTR1075....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20718 2025-04-06 18:31:42 ePESSTOplus_Bot1 M. Ghendrih, C. Duffy, A. Milligan, M. Smith, C. Angus, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia-91T-like 0.058 1 ePESSTO+ 2025TNSCR1303....1G
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
20718 2025-04-06 08:32:48 ESO-NTT / EFOSC2-NTT 800 M. Ghendrih, C. Duffy A. Milligan, M. Smith, C. Angus ePESSTO+ tns_2025fbu_2025-04-06_08-32-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025fbu_2025-04-06_08-32-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sat, 06/14/2025 - 20:39

Object coordinates updated

Object coordinates updated according to AT-report 258592 of Group Pan-STARRS
Previous RA, DEC: 15:53:45.284, -01:24:31.43 (238.43868205, -1.4087294375)
Updated RA, DEC: 15:53:45.278, -01:24:31.38 (238.438656807, -1.40871763398)

TNS
System

Wed, 04/09/2025 - 18:14

Object coordinates updated

Object coordinates updated according to AT-report 251333 of Group ZTF
Previous RA, DEC: 15:53:45.286, -01:24:31.25 (238.4386904, -1.4086811)
Updated RA, DEC: 15:53:45.284, -01:24:31.43 (238.43868205, -1.4087294375)