RA/DEC (2000)
01:48:25.072 -76:13:18.89
27.104468 -76.221914
Type
SN Ia
Redshift
0.08
Discovery ReportClassification Report
Related AstroNotes: 2025-290
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-09-15 00:22:05.376
TNS AT
Y
Public
Y
Discovery Mag
19.281
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_2025xox - 2025-09-22 08:05:16 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_orange
 ▌ATLAS-STH_ATLAS-03_orange
   
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
22072 2025-09-22 08:05:16 ESO-NTT / EFOSC2-NTT 900 Ben Warwick, Anwesha Sahu Ben Godson, Joe Lyman ePESSTO+ tns_2025xox_2025-09-22_08-05-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025xox_2025-09-22_08-05-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-09-03 13:48:00 - 2025-09-23 14:29:37 2460922.074999 - 2460942.103899 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519446 2025-09-23 14:29:37 2460942.103899 19.13 0.11 ABMag L-GOTO GOTO-S_GOTO-4 180
519445 2025-09-03 13:48:00 2460922.074999 19.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-09-14 06:27:30 - 2025-09-14 06:27:30 2460932.7691 - 2460932.7691 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517381 2025-09-14 06:27:30 2460932.7691 18.94 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-09-15 00:22:05 - 2025-09-15 00:22:05 2460933.51534 - 2460933.51534 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517382 2025-09-15 00:22:05 2460933.51534 19.281 0.186 19.46 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 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
271098 2025-09-24 00:51:27 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 01:48:25.116 -76:13:17.73 2025-09-23 14:29:36.960 19.13 L-GOTO Other GOTO25hop GOTO N
270165 2025-09-15 08:02:39 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 01:48:25.072 -76:13:18.89 2025-09-15 00:22:05.376 19.281 orange-ATLAS PSN ATLAS25ljz ATLAS 2025TNSTR3705....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
22072 2025-09-22 13:36:22 ePESSTOplus_Bot1 Ben Warwick, Anwesha Sahu, Ben Godson, Joe Lyman, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN Ia 0.08 1 ePESSTO+ 2025TNSCR3813....1W
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
22072 2025-09-22 08:05:16 ESO-NTT / EFOSC2-NTT 900 Ben Warwick, Anwesha Sahu Ben Godson, Joe Lyman ePESSTO+ tns_2025xox_2025-09-22_08-05-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025xox_2025-09-22_08-05-16_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments