RA/DEC (2000)
20:03:28.339 -54:50:44.72
300.8680775 -54.845755
Type
SN Ia
Redshift
0.01703
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-09-13 03:39:52.416
TNS AT
Y
Public
Y
Discovery Mag
18.654
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), 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_2025xhz - 2025-09-16 12:00:00 ANU-2.3m / WiFeS (DEBASS)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_orange
 ▌ATLAS-CHL_ATLAS-04_cyan
   
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
22040 2025-09-16 12:00:00 ANU-2.3m / WiFeS 1200 Robotic B. Martin DEBASS tns_2025xhz_2025-09-16.5_ANU-2.3m_WiFeS_DEBASS.dat tns_2025xhz_2025-09-16.5_ANU-2.3m_WiFeS_DEBASS.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-09-02 13:58:15 - 2025-09-29 09:46:38 2460921.082119 - 2460947.907391 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520723 2025-09-29 09:46:38 2460947.907391 15.1 0.01 ABMag L-GOTO GOTO-S_GOTO-4 135
520722 2025-09-02 13:58:15 2460921.082119 19 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-09-10 03:15:52 - 2025-09-10 03:15:52 2460928.63602 - 2460928.63602 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516687 2025-09-10 03:15:52 2460928.63602 18.78 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-09-13 03:39:52 - 2025-09-13 03:39:52 2460931.65269 - 2460931.65269 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516688 2025-09-13 03:39:52 2460931.65269 18.654 0.172 18.86 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 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
271681 2025-09-29 11:20:34 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 20:03:28.374 -54:50:44.61 2025-09-29 09:46:38.496 15.1 L-GOTO Other GOTO25iak GOTO N
269836 2025-09-13 13:34:43 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:03:28.339 -54:50:44.72 2025-09-13 03:39:52.416 18.654 cyan-ATLAS PSN ATLAS25lfp ATLAS 2025TNSTR3672....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
22040 2025-09-17 07:42:49 Bailey Martin B. Martin (ANU), K. Auchettl (University of Melbourne/UCSC), B. P. Schmidt (ANU), P. Armstrong (ANU), D. Cao (ANU), H. Kummar (ANU), C. Lidman (ANU), L. Rauf (ANU), J. Shi (University of Melbourne), and B. E. Tucker (ANU) DEBASS SN Ia 0.01703 1 1 DEBASS Classified with superfit. The best fitting spectrum is SN1994D, a Type Ia. 2025TNSCR3747....1M
Related files
File Comments Last Modified (UT) Modified By
tns_2025xhz_atrep_22040_DEBASS.pdf The best fitting spectrum from superfit. 2025-09-17 07:42:49 Bailey Martin
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
22040 2025-09-16 12:00:00 ANU-2.3m / WiFeS 1200 Robotic B. Martin DEBASS tns_2025xhz_2025-09-16.5_ANU-2.3m_WiFeS_DEBASS.dat tns_2025xhz_2025-09-16.5_ANU-2.3m_WiFeS_DEBASS.fits Object

Comments