RA/DEC (2000)
02:38:32.237 +03:55:23.67
39.6343202 +3.9232418
Type
SN Ia
Redshift
0.0785
Discovery ReportClassification Report
Related AstroNotes: 2026-278
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-09-09 14:02:21.408
TNS AT
Y
Public
Y
Discovery Mag
18.804
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_2026abem - 2026-09-20 11:44:51 P200 / NGPS (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

 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_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
24831 2026-09-20 11:44:51 P200 / NGPS Nicholas Earley, Sam Rose, Brianna Peck Sam Rose ZTF tns_2026abem_2026-09-20_11-44-51_P200_NGPS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2026-09-08 16:49:48 - 2026-09-08 16:49:48 2461292.201253 - 2461292.201253 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
618011 2026-09-08 16:49:48 2461292.201253 19.57 0.11 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-STH_ATLAS-03 2026-09-08 00:49:18 - 2026-09-08 00:49:18 2461291.53424 - 2461291.53424 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
617945 2026-09-08 00:49:18 2461291.53424 19.3 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-09-07 03:43:38 - 2026-09-07 03:43:38 2461290.655301 - 2461290.655301 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
618010 2026-09-07 03:43:38 2461290.655301 20.3 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
i-ZTF P48_ZTF-Cam 2026-09-11 10:44:21 - 2026-09-11 10:44:21 2461294.9474653 - 2461294.9474653 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
618653 2026-09-11 10:44:21 2461294.9474653 20.2244 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-09-11 12:37:01 - 2026-09-13 09:24:08 2461295.025706 - 2461296.8917593 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
618655 2026-09-13 09:24:08 2461296.8917593 18.6901 0.0781487 ABMag g-ZTF P48_ZTF-Cam
618654 2026-09-11 12:37:01 2461295.025706 18.9675 0.178883 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-09-09 14:02:21 - 2026-09-09 14:02:21 2461293.08497 - 2461293.08497 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
617946 2026-09-09 14:02:21 2461293.08497 18.804 0.143 19.61 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
323431 2026-09-13 16:46:58 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 02:38:32.237 +03:55:23.67 2026-09-11 12:37:00.998 18.9675 g-ZTF PSN ZTF26abtnjsl ZTF N
323102 2026-09-11 07:52:25 GOTO_bot G. Ramsay, P. Charalampopoulos, K. Ackley et al. GOTO GOTO 02:38:32.275 +03:55:23.73 2026-09-08 16:49:48.000 19.57 L-GOTO Other GOTO26jhq GOTO N
323063 2026-09-10 22:26:34 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 02:38:32.168 +03:55:23.38 2026-09-09 14:02:21.408 18.804 orange-ATLAS PSN ATLAS26lgl ATLAS 2026TNSTR3645....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
24823 2026-10-03 06:04:55 ZTF_Bot1 J. Sollerman, K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), and M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration ZTF SN Ia 0.0785 1 ZTF 2026TNSCR3987....1S
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
24831 2026-09-20 11:44:51 P200 / NGPS Nicholas Earley, Sam Rose, Brianna Peck Sam Rose ZTF tns_2026abem_2026-09-20_11-44-51_P200_NGPS_ZTF.ascii Object

Comments

TNS
System

Sun, 09/13/2026 - 16:46

Object coordinates updated

Object coordinates updated according to AT-report 323431 of Group ZTF
Previous RA, DEC: 02:38:32.168, +03:55:23.38 (39.6340333333, +3.92316)
Updated RA, DEC: 02:38:32.237, +03:55:23.67 (39.6343202, +3.9232418)