RA/DEC (2000)
21:36:39.608 +46:32:38.39
324.1650344 +46.5439961
Type
SN Ia
Redshift
0.017
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-07-26 08:45:53.004
TNS AT
Y
Public
Y
Host Name
WISEA J213639.37+463247.3
Discovery Mag
18.6306
Filter
g-ZTF
Reporter/s
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025shh - 2025-07-31 00:00:00 UH88 / SNIFS (SCAT)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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌Other_Other_Clear
   
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
21672 2025-07-31 00:00:00 UH88 / SNIFS C. Angus SCAT tns_2025shh_2025-07-31_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-07-23 03:42:17 - 2025-07-23 03:42:17 2460879.65436 - 2460879.65436 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505302 2025-07-23 03:42:17 2460879.65436 19.08 0.103 20.14 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-N_GOTO-2 2025-07-14 03:34:52 - 2025-08-02 21:57:53 2460870.649212 - 2460890.415201 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507131 2025-08-02 21:57:53 2460890.415201 17.29 0.03 ABMag L-GOTO GOTO-N_GOTO-2 360
507130 2025-07-14 03:34:52 2460870.649212 19 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-07-22 07:42:36 - 2025-07-22 07:42:36 2460878.82125 - 2460878.82125 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505273 2025-07-22 07:42:36 2460878.82125 20.394 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-07-26 08:45:53 - 2025-07-26 08:45:53 2460882.8651968 - 2460882.8651968 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505274 2025-07-26 08:45:53 2460882.8651968 18.6306 0.051534 20.9064 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-07-21 12:56:25 - 2025-07-21 12:56:25 2460878.03918 - 2460878.03918 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505301 2025-07-21 12:56:25 2460878.03918 19.42 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
Clear- Other_Other 2025-07-23 06:30:33 - 2025-07-27 05:48:00 2460879.7712153 - 2460883.7416667 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505599 2025-07-27 05:48:00 2460883.7416667 17.1 0.2 18 Other Clear- Other_Other 30 B. Kumar 3 frames taken with a 0.36-m f/2 astrograph + CCD; zero points calibrated to UCAC-4 magnitudes.
505598 2025-07-23 06:30:33 2460879.7712153 18 Other Clear- Other_Other 30 B. Kumar [Last non detection] 3 frames taken with a 0.36-m f/2 astrograph + CCD; zero points calibrated to UCAC-4 magnitudes.
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
264825 2025-08-03 07:30:55 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 21:36:39.622 +46:32:38.33 2025-08-02 21:57:53.280 17.29 L-GOTO Other GOTO25fpl GOTO N
264066 2025-07-27 17:45:54 Balaji Kumar Balaji Kumar et al. GEOTS GEOTS 21:36:39.510 +46:32:37.60 2025-07-27 05:48:00.000 17.1 Clear- 1 PSN GEOTS-Balaji-2025-Shh GEOTS N
Related files
File Comments Last Modified (UT) Modified By
tns_2025shh_atrep_264066_GEOTS.png 2025-07-27 17:45:55 Balaji Kumar
263909 2025-07-26 19:22:06 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:36:39.610 +46:32:38.43 2025-07-23 03:42:16.704 19.08 wide-ATLAS PSN ATLAS25ihd ATLAS N
263900 2025-07-26 19:06:09 ALeRCE F. Forster,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 21:36:39.608 +46:32:38.39 2025-07-26 08:45:53.004 18.6306 g-ZTF PSN WISEA J213639.37+463247.3 ZTF25abeckqg ZTF Early SN candidate (g-rise > 0.17+-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/ZTF25abeckqg 2025TNSTR2908....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
21672 2025-07-31 13:48:54 Charlotte Angus C. Angus (QUB) on behalf of SCAT SCAT SN Ia 0.017 1 SCAT Spectrum taken with UH88/SNIFS on 31/07/2025. Template matches to SNe Ia around max. Redshift from template matching. Classification was done using SNID 2025TNSCR3015....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
21672 2025-07-31 00:00:00 UH88 / SNIFS C. Angus SCAT tns_2025shh_2025-07-31_UH88_SNIFS_SCAT.dat Object

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