RA/DEC (2000)
16:47:56.788 -25:01:44.41
251.98661600403 -25.029003138384
Type
SN Ia
Redshift
0.018429
Discovery ReportClassification Report
Related AstroNotes: 2026-188
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2026-06-05 07:51:34.998
TNS AT
Y
Public
Y
Host Name
ESO 518- G 004
Host Redshift
0.018429
Discovery Mag
19.021
Filter
r-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, S. Jurado, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026ohy - 2026-06-10 01:40:00 NOT / ALFOSC (GOTO)z=
 ▌SN_2026ohy - 2026-06-08 07:30:10 ESO-NTT / EFOSC2-NTT (ePESSTO+)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-4_L
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
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
24009 2026-06-10 01:40:00 NOT / ALFOSC J. Mills, D. O'Neill, M. Pursiainen GOTO tns_2026ohy_2461201.569444_NOT_ALFOSC_GOTO.dat Object
23970 2026-06-08 07:30:10 ESO-NTT / EFOSC2-NTT 900 E. Charleton, C.G. Touchard-Paxton, M. Ghendrih C. Dashwood-Brown ePESSTO+ tns_2026ohy_2026-06-08_07-30-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026ohy_2026-06-08_07-30-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-06-06 12:51:45 - 2026-06-07 11:47:26 2461198.035936 - 2461198.991275 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
590003 2026-06-07 11:47:26 2461198.991275 18.91 0.13 ABMag L-GOTO GOTO-S_GOTO-4 180
590002 2026-06-06 12:51:45 2461198.035936 18.7 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
i-ZTF P48_ZTF-Cam 2026-06-05 08:25:41 - 2026-06-05 08:25:41 2461196.851169 - 2461196.851169 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589321 2026-06-05 08:25:41 2461196.851169 18.9339 0.157263 19.1957 ABMag i-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
r-ZTF P48_ZTF-Cam 2026-06-05 07:51:35 - 2026-06-06 08:59:19 2461196.8274884 - 2461197.8745255 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589322 2026-06-06 08:59:19 2461197.8745255 18.7009 0.116652 19.2214 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
589146 2026-06-05 07:51:35 2461196.8274884 19.021 0.106436 19.5935 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
589320 2026-06-05 07:51:35 2461196.8274884 19.021 0.106436 19.5935 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2026-06-04 09:53:50 - 2026-06-04 09:53:50 2461195.9123843 - 2461195.9123843 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589145 2026-06-04 09:53:50 2461195.9123843 18.9444 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
589319 2026-06-04 09:53:50 2461195.9123843 18.9444 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
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
307570 2026-06-08 12:15:57 GOTO_bot G. Ramsay, K. Ackley, M. Dyer et al. GOTO GOTO 16:47:56.854 -25:01:46.08 2026-06-07 11:47:25.728 18.91 L-GOTO Other GOTO26fqe GOTO N
307236 2026-06-06 22:18:34 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 16:47:56.788 -25:01:44.41 2026-06-05 07:51:34.998 19.021 r-ZTF PSN ESO 518- G 004 ZTF26aazuwhc ZTF Early SN candidate (r-rise > 0.09+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aazuwhc N
307155 2026-06-05 16:21:48 ALeRCE A. Munoz-Arancibia, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 16:47:56.825 -25:01:44.85 2026-06-05 07:51:34.998 19.021 r-ZTF PSN ESO 518- G 004 ZTF26aazuwhc ZTF Early SN candidate (r-rise > 0.09+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aazuwhc 2026TNSTR2360....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24003 2026-06-11 09:54:24 GOTO_bot J. Mills, D. O'Neill, M. Pursiainen, T. Killestein, J. Lyman, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, A. Kumar on behalf of GOTO collaboration GOTO SN Ia 0.018429 1 GOTO Redshift from host galaxy via NED.
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
24009 2026-06-10 01:40:00 NOT / ALFOSC J. Mills, D. O'Neill, M. Pursiainen GOTO tns_2026ohy_2461201.569444_NOT_ALFOSC_GOTO.dat Object
23966 2026-06-08 16:56:38 ePESSTOplus_Bot1 E. Charleton, C.G. Touchard-Paxton, M. Ghendrih, C. Dashwood-Brown, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.018 1 ePESSTO+
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
23970 2026-06-08 07:30:10 ESO-NTT / EFOSC2-NTT 900 E. Charleton, C.G. Touchard-Paxton, M. Ghendrih C. Dashwood-Brown ePESSTO+ tns_2026ohy_2026-06-08_07-30-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026ohy_2026-06-08_07-30-10_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Mon, 06/08/2026 - 12:15

Object coordinates updated

Object coordinates updated according to AT-report 307236 of Group ZTF
Previous RA, DEC: 16:47:56.788, -25:01:44.41 (251.98661600403, -25.029003138384)
Updated RA, DEC: 16:47:56.788, -25:01:44.41 (251.98661600403, -25.029003138384)

TNS
System

Sat, 06/06/2026 - 22:18

Object coordinates updated

Object coordinates updated according to AT-report 307236 of Group ZTF
Previous RA, DEC: 16:47:56.825, -25:01:44.85 (251.9867727, -25.029125)
Updated RA, DEC: 16:47:56.788, -25:01:44.41 (251.98661600403, -25.029003138384)