RA/DEC (2000)
19:43:26.024 +47:55:10.87
295.85843453272 +47.91968681926
Type
SN Ia
Redshift
0.062
Discovery ReportClassification Report
Related AstroNotes: 2026-273
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-09-03 08:47:29.184
TNS AT
Y
Public
Y
Discovery Mag
18.792
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, J. Weston, X. Sheng, C. R. Angus, D. Magill, A. J. Smith, L. Shingles (QUB), A. Aamer (Arizona), P. Ramsden (Birmingham/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), T. Moore, A. Rest (STScI), T.-W. Chen (NCU), C. Deasy-Millar (TCD), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026aass - 2026-09-22 07:16:18 P60 / SEDM (ZTF)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
z-step:   v-step: 
   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
 ▌PS2_GPC2_w
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌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
24738 2026-09-22 07:16:18 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026aass_2026-09-22_07-16-18.098533_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-09-02 00:22:10 - 2026-09-02 00:22:10 2461285.51539 - 2461285.51539 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
616899 2026-09-02 00:22:10 2461285.51539 19.6 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-10-12 20:13:32 - 2026-10-12 20:13:32 2461326.342727 - 2461326.342727 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
627082 2026-10-12 20:13:32 2461326.342727 19.52 0.09 ABMag L-GOTO GOTO-N_GOTO-2 360
w-P1 PS2_GPC2 2026-09-03 08:21:35 - 2026-09-03 08:21:35 2461286.84832 - 2461286.84832 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
621956 2026-09-03 08:21:35 2461286.84832 18.71 0.02 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2026-08-25 21:41:19 - 2026-08-25 21:41:19 2461278.403692 - 2461278.403692 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
627081 2026-08-25 21:41:19 2461278.403692 20 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-08-25 06:40:45 - 2026-08-25 06:40:45 2461277.7782986 - 2461277.7782986 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
620600 2026-08-25 06:40:45 2461277.7782986 19.9171 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-09-19 04:52:12 - 2026-09-20 06:11:06 2461302.7029167 - 2461303.7577083 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
620602 2026-09-20 06:11:06 2461303.7577083 17.8709 0.049242 ABMag g-ZTF P48_ZTF-Cam
620601 2026-09-19 04:52:12 2461302.7029167 17.8521 0.0423508 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-09-03 08:47:29 - 2026-09-03 08:47:29 2461286.86631 - 2461286.86631 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
616900 2026-09-03 08:47:29 2461286.86631 18.792 0.121 19.41 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
328125 2026-10-13 15:31:19 GOTO_bot D. O'Neill, M. Pursiainen, K. Ackley et al. GOTO GOTO 19:43:26.027 +47:55:11.03 2026-10-12 20:13:31.872 19.52 L-GOTO PSN GOTO26lbx GOTO N
325089 2026-09-26 20:21:28 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 19:43:26.024 +47:55:10.87 2026-09-03 08:21:34.848 18.71 w-P1 PSN PS26hxw Pan-STARRS N
324354 2026-09-20 12:40:57 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 19:43:26.023 +47:55:10.90 2026-09-19 04:52:12.002 17.8521 g-ZTF PSN ZTF26abwarmj ZTF N
322502 2026-09-06 12:40:35 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 19:43:26.018 +47:55:11.08 2026-09-03 08:47:29.184 18.792 orange-ATLAS PSN ATLAS26kvj ATLAS 2026TNSTR3599....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
24730 2026-09-22 08:01:58 ZTF_Bot1 C. Fremling and J. Purdum on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.062 1 ZTF 2026TNSCR3843....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
24738 2026-09-22 07:16:18 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026aass_2026-09-22_07-16-18.098533_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 10/13/2026 - 15:31

Object coordinates updated

Object coordinates updated according to AT-report 325089 of Group Pan-STARRS
Previous RA, DEC: 19:43:26.024, +47:55:10.87 (295.85843453272, +47.91968681926)
Updated RA, DEC: 19:43:26.024, +47:55:10.87 (295.85843453272, +47.91968681926)

TNS
System

Sat, 09/26/2026 - 20:21

Object coordinates updated

Object coordinates updated according to AT-report 325089 of Group Pan-STARRS
Previous RA, DEC: 19:43:26.023, +47:55:10.90 (295.8584288, +47.9196938)
Updated RA, DEC: 19:43:26.024, +47:55:10.87 (295.85843453272, +47.91968681926)

TNS
System

Sun, 09/20/2026 - 12:40

Object coordinates updated

Object coordinates updated according to AT-report 324354 of Group ZTF
Previous RA, DEC: 19:43:26.018, +47:55:11.08 (295.85841, +47.9197453846)
Updated RA, DEC: 19:43:26.023, +47:55:10.90 (295.8584288, +47.9196938)