RA/DEC (2000)
18:57:15.805 -16:48:32.51
284.31585427 -16.80902997
Type
SN IIn
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-05-08 09:19:26.996
TNS AT
Y
Public
Y
Discovery Mag
19.4824
Filter
r-ZTF
Reporter/s
Yogesh Wagh (LJMU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026mah - 2026-05-20 10:48:06 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

 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌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
23794 2026-05-20 10:48:06 P60 / SEDM 2700 SEDmRobot ZTF tns_2026mah_2026-05-20_10-48-05.904402_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2026-04-30 15:52:41 - 2026-05-09 14:45:12 2461161.161583 - 2461170.114716 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589952 2026-05-09 14:45:12 2461170.114716 19.41 0.14 ABMag L-GOTO GOTO-S_GOTO-3 180
589951 2026-04-30 15:52:41 2461161.161583 19.3 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-05-12 07:15:57 - 2026-05-12 07:15:57 2461172.80274 - 2461172.80274 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
581847 2026-05-12 07:15:57 2461172.80274 18.895 0.164 19.13 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
i-ZTF P48_ZTF-Cam 2026-05-03 11:05:44 - 2026-05-03 11:05:44 2461163.9623148 - 2461163.9623148 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
581138 2026-05-03 11:05:44 2461163.9623148 19.4384 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
r-ZTF P48_ZTF-Cam 2026-05-08 09:19:27 - 2026-05-08 09:19:27 2461168.8885069 - 2461168.8885069 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
581139 2026-05-08 09:19:27 2461168.8885069 19.4824 0.197161 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-05-08 10:54:51 - 2026-05-10 11:25:41 2461168.9547569 - 2461170.976169 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
581140 2026-05-10 11:25:41 2461170.976169 19.3088 0.194715 ABMag g-ZTF P48_ZTF-Cam
582901 2026-05-09 09:49:15 2461169.9092014 19.5261 0.181861 19.8972 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
582900 2026-05-08 10:54:51 2461168.9547569 19.5205 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-05-11 13:04:01 - 2026-05-11 13:04:01 2461172.04446 - 2461172.04446 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
581846 2026-05-11 13:04:01 2461172.04446 16.73 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
307544 2026-06-08 11:56:32 GOTO_bot D. O'Neill, G. Ramsay, K. Ackley et al. GOTO GOTO 18:57:15.819 -16:48:32.93 2026-05-09 14:45:11.808 19.41 L-GOTO Other GOTO26epq GOTO N
303906 2026-05-15 18:46:41 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 18:57:15.805 -16:48:32.51 2026-05-09 09:49:15.001 19.5261 g-ZTF PSN ZTF26aavksdh ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aavksdh N
303405 2026-05-12 14:29:26 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 18:57:15.779 -16:48:32.62 2026-05-12 07:15:56.736 18.895 orange-ATLAS PSN ATLAS26fly ATLAS N
303058 2026-05-10 17:49:42 Fritz Yogesh Wagh (LJMU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 18:57:15.795 -16:48:32.50 2026-05-08 09:19:26.996 19.4824 r-ZTF PSN ZTF26aavksdh ZTF 2026TNSTR2035....1W N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23790 2026-05-20 21:01:17 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 IIn 0.05 1 ZTF 2026TNSCR2206....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
23794 2026-05-20 10:48:06 P60 / SEDM 2700 SEDmRobot ZTF tns_2026mah_2026-05-20_10-48-05.904402_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Fri, 05/15/2026 - 18:46

Object coordinates updated

Object coordinates updated according to AT-report 303906 of Group ZTF
Previous RA, DEC: 18:57:15.795, -16:48:32.50 (284.315812, -16.8090271)
Updated RA, DEC: 18:57:15.805, -16:48:32.51 (284.31585427, -16.80902997)