RA/DEC (2000)
09:09:09.090 -13:04:11.40
137.287874615 -13.0698330769
Type
SN Ia
Redshift
0.062
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-03-04 05:54:29.952
TNS AT
Y
Public
Y
Discovery Mag
18.895
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), 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 (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_2025dif - 2025-03-05 10:48:50 FTS / FLOYDS-S (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_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
20543 2025-03-05 10:48:50 FTS / FLOYDS-S 3600 LCO Joseph Farah None tns_2025dif_2025-03-05_10-48-50_FTS_FLOYDS-S_None.ascii tns_2025dif_2025-03-05_10-48-50_FTS_FLOYDS-S_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-03-04 05:54:30 - 2025-03-04 05:54:30 2460738.74618 - 2460738.74618 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
473388 2025-03-04 05:54:30 2460738.74618 18.895 0.155 19.24 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-03-02 22:22:03 - 2025-03-02 22:22:03 2460737.43198 - 2460737.43198 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
473387 2025-03-02 22:22:03 2460737.43198 19.37 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
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 Bibcode Unreal Auto classification
246706 2025-03-04 14:16:30 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 09:09:09.090 -13:04:11.40 2025-03-04 05:54:29.952 18.895 orange-ATLAS PSN ATLAS25cjq ATLAS 2025TNSTR.880....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
20543 2025-03-08 20:39:46 Joseph Farah Joseph Farah (UCSB/LCO), Moira Andrews (UCSB/LCO), Chris Ni (UCSB/LCO), D. Andrew Howell (UCSB/LCO), Curtis McCully (UCSB/LCO) None SN Ia 0.062 1 We report the classification of AT 2025dif as a SN Ia. Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find best fits to SNe Ia at approximately peak light. The SN host may be WISEA J090909.21-130416.4, but no values for redshift are available in NED. SNID finds a best-fit redshift of 0.062. Additional follow-up is encouraged. 2025TNSCR.922....1F
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
20543 2025-03-05 10:48:50 FTS / FLOYDS-S 3600 LCO Joseph Farah None tns_2025dif_2025-03-05_10-48-50_FTS_FLOYDS-S_None.ascii tns_2025dif_2025-03-05_10-48-50_FTS_FLOYDS-S_None.fits Object

Comments