RA/DEC (2000)
19:38:21.408 -29:24:06.53
294.58920111 -29.4018126815
Type
SN Ia
Redshift
0.11311
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-09-13 19:44:50.784
TNS AT
Y
Public
Y
Discovery Mag
18.986
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)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025xma - 2025-09-16 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
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌ATLAS-MLO_ATLAS-01_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
22037 2025-09-16 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025xma_2025-09-16_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-08-12 23:49:12 - 2025-09-15 21:30:37 2460900.492505 - 2460934.396256 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517984 2025-09-15 21:30:37 2460934.396256 18.8 0.14 ABMag L-GOTO GOTO-N_GOTO-2 135
517983 2025-08-12 23:49:12 2460900.492505 18.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-09-13 19:44:51 - 2025-09-13 19:44:51 2460932.32281 - 2460932.32281 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517160 2025-09-13 19:44:51 2460932.32281 18.986 0.159 19.36 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-09-13 07:43:58 - 2025-09-13 07:43:58 2460931.8222 - 2460931.8222 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517159 2025-09-13 07:43:58 2460931.8222 17.52 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-09-17 05:42:21 - 2025-09-17 05:42:21 2460935.73774 - 2460935.73774 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
545254 2025-09-17 05:42:21 2460935.73774 19.01 0.05 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
284020 2025-12-30 19:31:24 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 19:38:21.408 -29:24:06.53 2025-09-17 05:42:20.736 19.01 w-P1 PSN PS25kkt Pan-STARRS N
270423 2025-09-17 09:01:24 GOTO_bot D. O'Neill, G. Ramsay, K. Ackley et al. GOTO GOTO 19:38:21.392 -29:24:07.24 2025-09-15 21:30:36.864 18.8 L-GOTO Other GOTO25hdp GOTO N
270059 2025-09-14 19:07:49 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 19:38:21.395 -29:24:06.74 2025-09-13 19:44:50.784 18.986 orange-ATLAS PSN ATLAS25lim ATLAS 2025TNSTR3686....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
22037 2025-09-16 23:31:13 Willem Hoogendam Willem Hoogendam (IfA/Hawaii), on behalf of SCAT SCAT SN Ia 0.11311 1 SCAT Redshift from NED. SNID best match to SN 1999aa near max light at redshift of 0.091. 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
22037 2025-09-16 00:00:00 UH88 / SNIFS 1800 Hoogendam Hoogendam SCAT tns_2025xma_2025-09-16_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Tue, 12/30/2025 - 19:31

Object coordinates updated

Object coordinates updated according to AT-report 284020 of Group Pan-STARRS
Previous RA, DEC: 19:38:21.395, -29:24:06.74 (294.589145714, -29.4018728571)
Updated RA, DEC: 19:38:21.408, -29:24:06.53 (294.58920111, -29.4018126815)