RA/DEC (2000)
15:33:21.782 -41:04:00.27
233.340758462 -41.0667415385
Type
CV
Redshift
Discovery ReportClassification Report
Related AstroNotes: 2026-99
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-02 05:12:08.064
TNS AT
Y
Public
Y
Discovery Mag
17.001
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (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, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (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

 ▌AT_2026idf - 2026-04-16 00:00:00 Gemini-S / GMOS-S (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),

Light curves

 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌Other_Other_Other
   
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
23507 2026-04-16 00:00:00 Gemini-S / GMOS-S Gemini None tns_2026idf_2026-04-16_Gemini-S_GMOS-S_None.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-04-02 05:12:08 - 2026-04-02 05:12:08 2461132.71676 - 2461132.71676 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
571903 2026-04-02 05:12:08 2461132.71676 17.001 0.097 18.43 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2026-04-01 00:09:38 - 2026-04-01 00:09:38 2461131.50669 - 2461131.50669 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
571902 2026-04-01 00:09:38 2461131.50669 18.85 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
Other- Other_Other 2025-07-29 00:02:42 - 2026-04-03 06:48:09 2460885.50187 - 2461133.78344 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573178 2026-04-03 06:48:09 2461133.78344 16.7 18.4 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
573177 2026-04-03 06:45:37 2461133.78168 17 18.4 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
573176 2025-07-29 00:02:42 2460885.50187 19.9 VegaMag Other- Other_Other 180 Robot [Last non detection] MASTER-OAFA
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
299043 2026-04-07 11:47:49 MASTER M.Shilova, V.Lipunov, E.Gorbovskoy et al. MASTER MASTER 15:33:21.730 -41:03:59.60 2026-04-03 06:45:37.152 17 Other- Other MASTER OT J153321.73-410359.6 MASTER OT, ampl>3m N
298309 2026-04-02 15:11:06 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 15:33:21.782 -41:04:00.27 2026-04-02 05:12:08.064 17.001 orange-ATLAS PSN ATLAS26drd ATLAS 2026TNSTR1398....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
23505 2026-04-18 18:45:49 Priscila Pessi P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), V.Firpo (NOIRLab/Gemini South), L. Magill (NOIRLab/Gemini South), K. Silva (NOIRLab/Gemini South), P. Candia (NOIRLab/Gemini South), R. Ruiz-Carmona (NOIRLab/Gemini South), S. Panda (NOIRLab/Gemini South), J. Font-Serra (NOIRLab/Gemini South), R. Angeloni (NOIRLab/Gemini South), V. Kalari (NOIRLab/Gemini South), C. Rodriguez (NOIRLab/Gemini South), J.-E. Heo (NOIRLab/Gemini South), E. Sabbi (NOIRLab), T. Ahumada (NOIRLab/ SOAR), R. Cartier (University of Antofagasta), S. Cikota (CAHA) None CV 1 We obtained the spectrum with the GMOS instrument at the Gemini South telescope as part of our bad-weather filler program. This program is designed to make productive use of poor observing conditions by obtaining spectroscopic observations of recently discovered transients, with the aim of providing timely classifications to the community. The observation was obtained with the grism R150 with a slit of 1.5", combining two 600-second exposures, with a 20 nm shift between the two central wavelength settings in order to compensate for the gaps between the detector chips. The data was reduced using the standard Gemini data reduction software DRAGONS, following the procedures provided by the observatory. The classification was inferred by spectral matching. 2026TNSCR1709....1P
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
23507 2026-04-16 00:00:00 Gemini-S / GMOS-S Gemini None tns_2026idf_2026-04-16_Gemini-S_GMOS-S_None.txt Object

Comments