RA/DEC (2000)
14:49:19.404 +33:17:41.02
222.3308497 +33.2947268
Type
SN Ia
Redshift
0.088
Discovery ReportClassification Report
Related AstroNotes: 2026-99
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-04 10:50:20.832
TNS AT
Y
Public
Y
Discovery Mag
18.629
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_2026iho - 2026-04-17 05:28:39 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
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌WFST_WFST-WFC_g
 ▌GOTO-N_GOTO-2_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
23497 2026-04-17 05:28:39 P60 / SEDM 2700 SEDmRobot ZTF tns_2026iho_2026-04-17_05-28-39.186191_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-WFST WFST_WFST-WFC 2025-07-11 16:53:46 - 2026-03-22 19:06:14 2460868.204 - 2461122.296 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578372 2026-03-22 19:06:14 2461122.296 21.45 0.09 ABMag g-WFST WFST_WFST-WFC 30
578371 2025-07-11 16:53:46 2460868.204 21.34 ABMag g-WFST WFST_WFST-WFC 30 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-03-16 05:47:25 - 2026-03-27 01:10:09 2461115.741261 - 2461126.548724 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573129 2026-03-27 01:10:09 2461126.548724 19.49 0.18 ABMag L-GOTO GOTO-N_GOTO-2 180
573128 2026-03-16 05:47:25 2461115.741261 20 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-03-21 10:54:42 - 2026-04-07 10:30:37 2461120.9546528 - 2461137.9379282 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573163 2026-04-07 10:30:37 2461137.9379282 18.4827 0.068622 ABMag r-ZTF P48_ZTF-Cam
573161 2026-03-21 10:54:42 2461120.9546528 20.9693 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-03-25 08:26:09 - 2026-03-25 08:26:09 2461124.8514931 - 2461124.8514931 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573162 2026-03-25 08:26:09 2461124.8514931 19.8494 0.0788279 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-03 12:47:21 - 2026-04-04 10:50:21 2461134.03288 - 2461134.95163 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572245 2026-04-04 10:50:21 2461134.95163 18.629 0.15 18.91 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
572244 2026-04-03 12:47:21 2461134.03288 14.39 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
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
301698 2026-04-27 12:58:08 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 14:49:19.400 +33:17:40.74 2026-03-22 19:06:14.400 21.45 g-WFST PSN WFST260322eeaam WFST N
299038 2026-04-07 11:46:08 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 14:49:19.404 +33:17:41.02 2026-03-25 08:26:09.003 19.8494 g-ZTF PSN ZTF26aapptug ZTF N
299014 2026-04-07 08:55:31 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 14:49:19.425 +33:17:40.18 2026-03-27 01:10:09.408 19.49 L-GOTO Other GOTO26cty GOTO N
298515 2026-04-04 22:04:38 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 14:49:19.376 +33:17:40.84 2026-04-04 10:50:20.832 18.629 orange-ATLAS PSN ATLAS26dry ATLAS 2026TNSTR1414....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
23495 2026-04-18 05:00:29 ZTF_Bot1 J. Sollerman, J. Castaneda Jaimes, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.088 1 ZTF 2026TNSCR1714....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
23497 2026-04-17 05:28:39 P60 / SEDM 2700 SEDmRobot ZTF tns_2026iho_2026-04-17_05-28-39.186191_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 04/07/2026 - 11:46

Object coordinates updated

Object coordinates updated according to AT-report 299038 of Group ZTF
Previous RA, DEC: 14:49:19.376, +33:17:40.84 (222.330735, +33.2946775)
Updated RA, DEC: 14:49:19.404, +33:17:41.02 (222.3308497, +33.2947268)