RA/DEC (2000)
21:51:45.446 -06:54:27.74
327.939358881 -6.90770483886
Type
SN Ia
Redshift
0.057723
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-09-08 05:11:37.996
TNS AT
Y
Public
Y
Discovery Mag
18.8261
Filter
r-ZTF
Reporter/s
Jacob Wise (LJMU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025xby - 2025-09-13 00:00:00 UH88 / SNIFS (SCAT)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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌LAST_LAST-Cam_Clear
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌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
22029 2025-09-13 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025xby_2025-09-13_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-09-11 00:25:20 - 2025-09-11 00:25:20 2460929.51759 - 2460929.51759 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516477 2025-09-11 00:25:20 2460929.51759 18.271 0.081 19.24 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
Clear- LAST_LAST-Cam 2024-07-03 21:55:38 - 2025-09-21 17:12:29 2460495.41364 - 2460940.217 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519051 2025-09-21 17:12:29 2460940.217 18.37 ABMag Clear- LAST_LAST-Cam 400
519050 2024-07-03 21:55:38 2460495.41364 21.07 ABMag Clear- LAST_LAST-Cam 3580 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-09-09 23:32:14 - 2025-09-09 23:32:14 2460928.48072 - 2460928.48072 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516476 2025-09-09 23:32:14 2460928.48072 18.21 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-09-03 23:22:28 - 2025-09-10 00:06:11 2460922.473927 - 2460928.504294 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516257 2025-09-10 00:06:11 2460928.504294 18.59 0.16 ABMag L-GOTO GOTO-N_GOTO-1 180
516256 2025-09-03 23:22:28 2460922.473927 19.3 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-08 05:11:38 - 2025-09-08 05:11:38 2460926.716412 - 2460926.716412 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516100 2025-09-08 05:11:38 2460926.716412 18.8261 0.186167 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-09-05 04:20:43 - 2025-09-08 07:28:27 2460923.6810532 - 2460926.8114236 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516101 2025-09-08 07:28:27 2460926.8114236 18.7325 0.170446 ABMag g-ZTF P48_ZTF-Cam
516099 2025-09-05 04:20:43 2460923.6810532 19.284 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
w-P1 PS1_GPC1 2025-09-13 07:56:26 - 2025-09-13 07:56:26 2460931.83086 - 2460931.83086 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519398 2025-09-13 07:56:26 2460931.83086 18.27 0.02 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
271073 2025-09-23 20:53:23 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 21:51:45.446 -06:54:27.74 2025-09-13 07:56:26.304 18.27 w-P1 PSN PS25hqc Pan-STARRS N
270898 2025-09-21 17:40:28 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 21:51:45.421 -06:54:28.02 2025-09-21 17:12:28.800 18.37 Clear- PSN LAST N
269717 2025-09-11 13:21:59 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 21:51:45.448 -06:54:27.19 2025-09-11 00:25:19.776 18.271 wide-ATLAS PSN ATLAS25lec ATLAS N
269598 2025-09-10 07:45:26 GOTO_bot D. O'Neill, G. Ramsay, K. Ackley et al. GOTO GOTO 21:51:45.418 -06:54:27.34 2025-09-10 00:06:10.656 18.59 L-GOTO Other GOTO25gxa GOTO N
269516 2025-09-08 10:02:48 Fritz Jacob Wise (LJMU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 21:51:45.446 -06:54:27.79 2025-09-08 05:11:37.996 18.8261 r-ZTF PSN ZTF25abpkect ZTF 2025TNSTR3616....1W N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22029 2025-09-16 05:03:40 Willem Hoogendam Willem Hoogendam (IfA/Hawaii), on behalf of SCAT SCAT SN Ia 0.057723 1 SCAT Redshift from NED 2025TNSCR3730....1H
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
22029 2025-09-13 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025xby_2025-09-13_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Tue, 09/23/2025 - 20:53

Object coordinates updated

Object coordinates updated according to AT-report 271073 of Group Pan-STARRS
Previous RA, DEC: 21:51:45.446, -06:54:27.79 (327.9393604, -6.9077197)
Updated RA, DEC: 21:51:45.446, -06:54:27.74 (327.939358881, -6.90770483886)