RA/DEC (2000)
12:40:00.598 +01:09:25.32
190.00249295 +1.157033
Type
SN Ia-pec
Redshift
0.07959
Discovery ReportClassification Report
Related AstroNotes: 2025-123, 2025-142
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2021-03-18 07:06:10.002
TNS AT
Y
Public
Y
Host Name
WISEA J124000.58+010924.2
Host Redshift
0.079686
Discovery Mag
19.6037
Filter
g-ZTF
Reporter/s
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, L. Hernandez-Garcia, L. Galbany, E. Camacho, J. Silva-Farfan, A. Mourao, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2021gqu - 2025-04-30 06:39:07 HET / HET-LRS (None)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
 ▌GOTO-N_GOTO-1_L
 ▌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
21001 2025-04-30 06:39:07 HET / HET-LRS McDonald None tns_2021gqu_2025-04-30_06-39-06.999968_HET_HET-LRS_None.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-04-17 10:47:21 - 2025-04-17 10:47:21 2460782.949547 - 2460782.949547 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482909 2025-04-17 10:47:21 2460782.949547 19.35 0.18 ABMag L-GOTO GOTO-S_GOTO-3 180
L-GOTO GOTO-N_GOTO-1 2025-04-16 22:28:22 - 2025-04-16 22:28:22 2460782.436373 - 2460782.436373 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482908 2025-04-16 22:28:22 2460782.436373 19.7 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2021-03-08 06:55:09 - 2021-03-08 06:55:09 2459281.7882986 - 2459281.7882986 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
199733 2021-03-08 06:55:09 2459281.7882986 20.2978 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2021-03-18 07:06:10 - 2021-03-20 07:05:55 2459291.7959491 - 2459293.7957755 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
199735 2021-03-20 07:05:55 2459293.7957755 19.2643 0.123362 20.2898 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
199734 2021-03-18 07:06:10 2459291.7959491 19.6037 0.10224 20.4092 ABMag g-ZTF P48_ZTF-Cam 30 Robot 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
252046 2025-04-20 14:42:36 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 12:40:00.612 +01:09:24.31 2025-04-17 10:47:21.120 19.35 L-GOTO Other GOTO25bzp GOTO N
103409 2021-03-20 22:20:36 ALeRCE F. Forster,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 12:40:00.598 +01:09:25.32 2021-03-18 07:06:10.002 19.6037 g-ZTF PSN WISEA J124000.58+010924.2 ZTF21aapriwm ZTF SN candidate classified using ALeRCE's stamp classifier - see http://arxiv.org/abs/2008.03309 - and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF21aapriwm 2021TNSTR.835....1F N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21001 2025-05-08 17:41:30 Pietro Baldini Pietro Baldini (MPE), Arne Rau (MPE), Benny Trakhtenbrot (TAU/MPE), Fabian Balzer (MPE), Maximilian Fabricius (MPE), Joseph R. Farah (UCSB), Sarah Faris (TAU), Matthias Kluge (MPE) None SN Ia-pec 0.07959 1 We report the spectroscopic classification of an optical re-brightening near the center of SDSS J124000.57+010924.3 (z = 0.07959) as a likely peculiar Type Ia supernova (SNIa-pec), based on spectroscopy obtained with LRS2 on the 10m Hobby-Eberly Telescope and with FLOYDS on the 2m Faulkes Telescope North. An accompanying AstroNote has also been submitted. 2025TNSCR1720....1B
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
21001 2025-04-30 06:39:07 HET / HET-LRS McDonald None tns_2021gqu_2025-04-30_06-39-06.999968_HET_HET-LRS_None.txt Object

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