RA/DEC (2000)
00:52:09.787 -01:07:15.00
13.0407789 -1.120832
Type
SN Ia
Redshift
0.041
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-01-07 01:06:24.768
TNS AT
Y
Public
Y
Discovery Mag
18.016
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

 ▌SN_2026ap - 2026-01-18 01:20:55 VLT-UT1 / FORS2 (adH0cc)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

 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_r
   
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
22801 2026-01-18 01:20:55 VLT-UT1 / FORS2 600 service G. Csoernyei adH0cc tns_2026ap_2026-01-18_01-20-55_VLT-UT1_FORS2_adH0cc.asci tns_2026ap_2026-01-18_01-20-55_VLT-UT1_FORS2_adH0cc.fits Object Quick-reduction spectrum
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-01-07 01:06:25 - 2026-01-07 01:06:25 2461047.54612 - 2461047.54612 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547199 2026-01-07 01:06:25 2461047.54612 18.016 0.173 18.66 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2026-01-01 19:36:25 - 2026-01-01 19:36:25 2461042.31696 - 2461042.31696 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547198 2026-01-01 19:36:25 2461042.31696 16.36 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-12-22 03:08:03 - 2026-01-09 02:29:28 2461031.6305903 - 2461049.6037963 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
548027 2026-01-09 02:29:28 2461049.6037963 18.3723 0.0971518 19.7923 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
548026 2025-12-22 03:08:03 2461031.6305903 20.6021 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
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
286229 2026-01-10 00:39:04 ALeRCE A. Munoz-Arancibia,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 00:52:09.787 -01:07:15.00 2026-01-09 02:29:28.000 18.3723 r-ZTF PSN LEDA 1126308 ZTF26aaaaget ZTF Early SN candidate (r-rise > 0.12+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aaaaget N
285829 2026-01-07 08:02:22 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 00:52:09.763 -01:07:14.76 2026-01-07 01:06:24.768 18.016 orange-ATLAS PSN ATLAS26abc ATLAS 2026TNSTR..49....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
22800 2026-01-18 03:44:34 Geza Csornyei G. Csoernyei, B. Leibundgut, J. Spyromilio, S. Blondin (ESO), S. Taubenberger (TUM / MPA), W. Hillebrandt (MPA) adH0cc SN Ia 0.041 1 1 adH0cc The spectrum shows a strong Si-line absorption, indicative of a Type Ia supernova. Redshift obtained from the template matching. Good matches to SN Ia templates are found assuming a reddening of E(B-V) = 0.4 mag. The supernova exploded in the same galaxy as the SN Ia 2019mjy. 2026TNSCR.220....1C
Related files
File Comments Last Modified (UT) Modified By
tns_2026ap_atrep_22800_adH0cc.png Template matching plot using GELATO. 2026-01-18 03:44:35 Geza Csornyei
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
22801 2026-01-18 01:20:55 VLT-UT1 / FORS2 600 service G. Csoernyei adH0cc tns_2026ap_2026-01-18_01-20-55_VLT-UT1_FORS2_adH0cc.asci tns_2026ap_2026-01-18_01-20-55_VLT-UT1_FORS2_adH0cc.fits Object Quick-reduction spectrum

Comments

TNS
System

Sat, 01/10/2026 - 00:39

Object coordinates updated

Object coordinates updated according to AT-report 286229 of Group ZTF
Previous RA, DEC: 00:52:09.763, -01:07:14.76 (13.04068, -1.12076666667)
Updated RA, DEC: 00:52:09.787, -01:07:15.00 (13.0407789, -1.120832)