RA/DEC (2000)
11:21:39.756 +32:21:30.82
170.415651613 +32.3585609677
Type
SN Ia
Redshift
0.041019
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-21 07:49:16.032
TNS AT
Y
Public
Y
Discovery Mag
17.792
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_2026kof - 2026-05-01 20:35:00 BL41 / FOSC-E5535 (None)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-TDO_ATLAS-05_wide
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-HKO_ATLAS-02_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
23600 2026-05-01 20:35:00 BL41 / FOSC-E5535 5400 Claudio Balcon Claudio Balcon None tns_2026kof_2026-05-01_20-35-00_BL41_FOSC-E5535_None.dat tns_2026kof_2026-05-01_20-35-00_BL41_FOSC-E5535_None.fit Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-04-15 00:36:45 - 2026-04-15 00:36:45 2461145.52552 - 2461145.52552 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577587 2026-04-15 00:36:45 2461145.52552 19.94 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-03-31 23:19:19 - 2026-04-23 20:54:49 2461131.471754 - 2461154.371405 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578953 2026-04-23 20:54:49 2461154.371405 18.26 0.05 ABMag L-GOTO GOTO-N_GOTO-2 180
578952 2026-03-31 23:19:19 2461131.471754 18.8 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-21 07:49:16 - 2026-04-21 07:49:16 2461151.82588 - 2461151.82588 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577588 2026-04-21 07:49:16 2461151.82588 17.792 0.07 19.52 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
301994 2026-04-29 14:27:26 GOTO_bot G. Ramsay, J. Lyman, K. Ackley et al. GOTO GOTO 11:21:39.756 +32:21:30.71 2026-04-23 20:54:48.960 18.26 L-GOTO Other GOTO26dvn GOTO 2026TNSTR1874....1R N
301291 2026-04-24 08:39:48 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:21:39.756 +32:21:30.82 2026-04-21 07:49:16.032 17.792 orange-ATLAS PSN ATLAS26eth ATLAS 2026TNSTR1798....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
23597 2026-05-02 00:36:52 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN Ia 0.041019 1 GELATO Harutyunyan et al., 2008, A&A, 488, 383 (gelato@tng.iac.es) suggests that this spectrum resembles that of a type Ia supernova at the redshift of the host galaxy, the value from NED. 2026TNSCR1921....1B
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
23600 2026-05-01 20:35:00 BL41 / FOSC-E5535 5400 Claudio Balcon Claudio Balcon None tns_2026kof_2026-05-01_20-35-00_BL41_FOSC-E5535_None.dat tns_2026kof_2026-05-01_20-35-00_BL41_FOSC-E5535_None.fit Object

Comments

TNS
System

Thu, 04/30/2026 - 11:20

AT Report/s were associated with object

GOTO AT report/s 301994 for 2026lca were associated with object AT2026kof.
Object 2026lca was removed from the system.