RA/DEC (2000)
15:55:10.027 -17:27:50.13
238.79177928235 -17.463926023529
Type
SN Ia
Redshift
0.06
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2026-05-07 07:59:31.001
TNS AT
Y
Public
Y
Host Name
WISEA J155510.07-172750.9
Discovery Mag
19.5955
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, G. Pignata, F.E. Bauer, 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_2026lor - 2026-05-13 01:58:49 NOT / ALFOSC (None)z=
▌Show H at z=vexp= km/s
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▌Show Mg at z=vexp= km/s
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▌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
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▌Show Tellurics 
▌Show Galaxy lines at z=
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▌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
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_i
 ▌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
23703 2026-05-13 01:58:49 NOT / ALFOSC A. Singh, J. Sollerman S. Schulze None tns_2026lor_2026-05-13_01-58-49.455_NOT_ALFOSC_None.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2026-04-30 14:49:02 - 2026-04-30 14:49:02 2461161.117394 - 2461161.117394 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580338 2026-04-30 14:49:02 2461161.117394 18.9 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-05-05 23:41:07 - 2026-05-05 23:41:07 2461166.486886 - 2461166.486886 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580339 2026-05-05 23:41:07 2461166.486886 19.42 0.14 ABMag L-GOTO GOTO-N_GOTO-1 180
i-ZTF P48_ZTF-Cam 2026-05-01 09:58:16 - 2026-05-01 09:58:16 2461161.915463 - 2461161.915463 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580158 2026-05-01 09:58:16 2461161.915463 18.6319 ABMag i-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
r-ZTF P48_ZTF-Cam 2026-05-07 10:02:17 - 2026-05-07 10:02:17 2461167.9182523 - 2461167.9182523 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580160 2026-05-07 10:02:17 2461167.9182523 19.2348 0.20176 19.3011 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2026-04-30 10:34:19 - 2026-05-07 07:59:31 2461160.9404977 - 2461167.8329977 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580159 2026-05-07 07:59:31 2461167.8329977 19.5955 0.249597 19.5199 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
582248 2026-05-07 07:59:31 2461167.8329977 19.5955 0.249597 19.5199 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
582247 2026-04-30 10:34:19 2461160.9404977 18.8003 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-05-07 11:30:22 - 2026-05-08 10:27:03 2461167.97942 - 2461168.93545 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580577 2026-05-08 10:27:03 2461168.93545 19.229 0.177 19.34 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
580576 2026-05-07 11:30:22 2461167.97942 19.03 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
303586 2026-05-13 21:03:43 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 15:55:10.027 -17:27:50.13 2026-05-07 07:59:31.001 19.5955 g-ZTF PSN ZTF26aauybpk ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aauybpk N
302781 2026-05-09 15:00:56 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 15:55:10.037 -17:27:49.71 2026-05-08 10:27:02.880 19.229 orange-ATLAS PSN ATLAS26fhj ATLAS N
302680 2026-05-08 09:04:14 GOTO_bot G. Ramsay, M. Pursiainen, K. Ackley et al. GOTO GOTO 15:55:10.047 -17:27:50.37 2026-05-05 23:41:07.296 19.42 L-GOTO PSN GOTO26ejr GOTO N
302602 2026-05-07 17:47:09 ALeRCE A. Munoz-Arancibia, G. Pignata, F.E. Bauer et al. ALeRCE ZTF 15:55:10.034 -17:27:50.28 2026-05-07 07:59:31.001 19.5955 g-ZTF PSN WISEA J155510.07-172750.9 ZTF26aauybpk ZTF Early SN candidate (r-rise > 0.06+-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/ZTF26aauybpk 2026TNSTR1965....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
23700 2026-05-13 12:37:05 Sigrid Nissen A. H. Andersen, J. E. Kløve, S. H. Nissen, G. Leloudas (DTU Space), J. Sollerman, A. Singh (OKC), S. Schulze (WIS) None SN Ia 0.06 1 Redshift from SN template. 2026TNSCR2090....1A
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
23703 2026-05-13 01:58:49 NOT / ALFOSC A. Singh, J. Sollerman S. Schulze None tns_2026lor_2026-05-13_01-58-49.455_NOT_ALFOSC_None.ascii Object

Comments

TNS
System

Wed, 05/13/2026 - 21:03

Object coordinates updated

Object coordinates updated according to AT-report 303586 of Group ZTF
Previous RA, DEC: 15:55:10.034, -17:27:50.28 (238.79180981332, -17.463966186463)
Updated RA, DEC: 15:55:10.027, -17:27:50.13 (238.79177928235, -17.463926023529)