RA/DEC (2000)
22:55:06.883 +01:31:11.01
343.77867826 +1.51972378766
Type
SN Ia
Redshift
0.142
Discovery ReportClassification Report
Related AstroNotes: 2021-196
Reporting Group
Pan-STARRS
Discovering Data Source
Pan-STARRS
Discovery Date
2021-07-12 13:35:02.400
TNS AT
Y
Public
Y
Discovery Mag
20.55
Filter
w-P1
Reporter/s
K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, University of Hawaii), K. W. Smith, D. R. Young, O. McBrien, J. Gillanders, S. Srivastav, M. Fulton, S. J. Smartt, D. O'Neill, P. Clark, S. Sim (Queen's University Belfast), D. E. Wright (University of Minnesota)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2021tgd - 2021-07-17 08:16:11 VLT-UT1 / FORS2 (adH0cc)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

 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
10116 2021-07-17 08:16:11 VLT-UT1 / FORS2 1500 service S. Taubenberger adH0cc tns_2021tgd_2021-07-17_08-16-11_VLT-UT1_FORS2_adH0cc.asci tns_2021tgd_2021-07-17_08-16-11_VLT-UT1_FORS2_adH0cc.fits Object Quick-reduction spectrum, telluric absorptions corrected.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2021-07-09 10:37:37 - 2021-07-15 09:50:37 2459404.9427894 - 2459410.9101505 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
228850 2021-07-15 09:50:37 2459410.9101505 20.2393 0.220915 20.3198 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
228849 2021-07-13 10:34:51 2459408.9408681 20.4408 0.235039 20.2953 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
228848 2021-07-11 10:54:55 2459406.9548032 20.3476 0.209361 20.1802 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
228847 2021-07-09 10:37:37 2459404.9427894 20.2809 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2021-07-15 10:36:09 - 2021-07-15 10:36:09 2459410.9417708 - 2459410.9417708 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
228851 2021-07-15 10:36:09 2459410.9417708 20.1382 0.170383 20.2529 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
w-P1 PS1_GPC1 2021-07-12 13:35:02 - 2021-07-12 13:35:02 2459408.066 - 2459408.066 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
228350 2021-07-12 13:35:02 2459408.066 20.55 0.06 22 ABMag w-P1 PS1_GPC1 45 Robot
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
117557 2021-07-15 17:00:09 ALeRCE A. Munoz-Arancibia,F. Forster,F.E. Bauer et al. ALeRCE ZTF 22:55:06.873 +01:31:11.11 2021-07-11 10:54:54.996 20.3476 r-ZTF PSN SDSS J225507.06+013112.9 ZTF21abmdnya ALeRCE 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/ZTF21abmdnya N
117339 2021-07-13 11:02:50 PS1_Bot1 K. C. Chambers,T. de Boer,J. Bulger et al. Pan-STARRS Pan-STARRS 22:55:06.883 +01:31:11.01 2021-07-12 13:35:02.400 20.55 w-P1 PSN PS21hyr Pan-STARRS 2021TNSTR2426....1C N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
10100 2021-07-17 18:15:10 Stefan Taubenberger C. Vogl, S. Taubenberger, A. Holas, G. Csoernyei, M. G. Cudmani, W. Hillebrandt, S. H. Suyu (MPA Garching), B. Leibundgut, J. Spyromilio (ESO), A. Floers (GSI), S. J. Smartt, M. Dobson (QUB), R. Kotak (Turku), R. Bruch, A. Gal-Yam (Weizmann), C. Lemon (Lausanne), S. Blondin (CNRS, LAM) adH0cc SN Ia 0.142 1 1 adH0cc An optical spectrum, obtained on the night of 2021 July 16 with the ESO Very Large Telescope UT1, equipped with the FORS2 spectrograph and grism 300V, shows SN 2021tgd to be a Type Ia supernova around B-band maximum light. SNID (Blondin & Tonry 2007; 2007ApJ...666.1024B) finds a good match with SN 1999ac at -2 days. A redshift of z = 0.142 has been determined from narrow host-galaxy emission lines. With this redshift, we measure a Si II line velocity of approximately 9500 km/s. 2021TNSCR2483....1V
Related files
File Comments Last Modified (UT) Modified By
tns_2021tgd_classrep_10100_adH0cc.pdf SNID match with SN 1999ac at -2 days. 2021-07-17 18:15:11 Stefan Taubenberger
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
10116 2021-07-17 08:16:11 VLT-UT1 / FORS2 1500 service S. Taubenberger adH0cc tns_2021tgd_2021-07-17_08-16-11_VLT-UT1_FORS2_adH0cc.asci tns_2021tgd_2021-07-17_08-16-11_VLT-UT1_FORS2_adH0cc.fits Object Quick-reduction spectrum, telluric absorptions corrected.

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