RA/DEC (2000)
16:58:04.221 +19:28:00.97
254.517587759 +19.4669359761
Type
SN Ia
Redshift
0.051
Reporting Group
YSE
Discovering Data Source
Pan-STARRS
Discovery Date
2025-08-15 07:04:55.776
TNS AT
Y
Public
Y
Discovery Mag
19.64
Filter
g-P1
Reporter/s
D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello, Z. Ansari, N. Arendse, C. Gall, C. Grillo, S. H. Bruun, C. Hede, J. Hjorth, L. Izzo, H. Korhonen, S. Raimundo, D. Kodi Ramanah, A. Sarangi, R. Wojtak, H. Pfister (DARK, U Copenhagen), K. Auchettl (DARK, UC Santa Cruz, U Melbourne), K. C. Chambers, M. E. Huber, E. A. Magnier, T. J. L. de Boer, J. R. Fairlamb, C. C. Lin, R. J. Wainscoat, T. Lowe, G. Paek, A. S. B. Schultz, P. Minguez (IfA, Hawaii), A. Engel, A. Gagliano, G. Narayan, M. Soraisam (Illinois), Q. Wang (JHU), A. Rest (JHU, STScI), S. J. Smartt, K. W. Smith (Oxford / QUB), C. R. Angus (QUB), K. Alexander, P. Blanchard, L. DeMarchi, A. Hajela, W. Jacobson-Galan, R. Margutti, D. Matthews, C. Stauffer, M. Stroh (Northwestern), M. Drout (U Toronto), D. A. Coulter, G. Dimitriadis, R. J. Foley, T. Hung, C. D. Kilpatrick, C. Rojas-Bravo, M. R. Siebert (UC Santa Cruz), E. Ramirez-Ruiz (UC Santa Cruz, DARK)

Spectra

 SN_2025umo - 2025-08-22 05:57:47 Lick-3m / KAST (UCSC)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
 PS2_GPC2_g
 GOTO-N_GOTO-1_L
 ATLAS-MLO_ATLAS-01_orange
 PS1_GPC1_i
   
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
21853 2025-08-22 05:57:47 Lick-3m / KAST K. Taggart K.Taggart UCSC tns_2025umo_2025-08-22_05-57-46.80_Lick-3m_KAST_UCSC.flm Object We measure a Si II 6355 velocity of -11,400 km/s.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-14 22:11:30 - 2025-08-14 22:11:30 2460902.42465 - 2460902.42465 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510357 2025-08-14 22:11:30 2460902.42465 19.68 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
g-P1 PS2_GPC2 2025-08-15 07:04:56 - 2025-08-15 07:04:56 2460902.79509 - 2460902.79509 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510173 2025-08-15 07:04:56 2460902.79509 19.64 0.06 21 ABMag g-P1 PS2_GPC2 27 Robot
L-GOTO GOTO-N_GOTO-1 2025-08-13 21:22:19 - 2025-08-17 21:29:25 2460901.390497 - 2460905.395434 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511336 2025-08-17 21:29:25 2460905.395434 18.61 0.16 ABMag L-GOTO GOTO-N_GOTO-1 180
511335 2025-08-13 21:22:19 2460901.390497 19 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-08-18 06:45:32 - 2025-08-18 06:45:32 2460905.78162 - 2460905.78162 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510358 2025-08-18 06:45:32 2460905.78162 18.609 0.077 20.4 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 110 Robot
i-P1 PS1_GPC1 2025-08-14 09:18:37 - 2025-08-14 09:18:37 2460901.88793 - 2460901.88793 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513552 2025-08-14 09:18:37 2460901.88793 20.12 0.11 20.7 ABMag i-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
268288 2025-08-28 23:51:01 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 16:58:04.221 +19:28:00.97 2025-08-14 09:18:37.152 20.12 i-P1 PSN PS25gqy Pan-STARRS N
267137 2025-08-22 22:07:27 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 16:58:04.228 +19:28:01.32 2025-08-17 21:29:25.152 18.61 L-GOTO Other GOTO25gdi GOTO N
266642 2025-08-20 08:56:47 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:58:04.215 +19:28:00.89 2025-08-18 06:45:31.968 18.609 orange-ATLAS PSN ATLAS25jsr ATLAS N
266551 2025-08-18 21:26:37 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 16:58:04.222 +19:28:00.92 2025-08-15 07:04:55.776 19.64 g-P1 PSN PS25gqy Pan-STARRS 2025TNSTR3260....1J N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21853 2025-08-23 21:02:08 Kirsty Taggart K. Taggart, K. C. Patra, R. J. Foley (UCSC) UCSC SN Ia 0.051 1 UCSC 2025TNSCR3348....1T
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
21853 2025-08-22 05:57:47 Lick-3m / KAST K. Taggart K.Taggart UCSC tns_2025umo_2025-08-22_05-57-46.80_Lick-3m_KAST_UCSC.flm Object We measure a Si II 6355 velocity of -11,400 km/s.

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 268288 of Group Pan-STARRS
Previous RA, DEC: 16:58:04.222, +19:28:00.92 (254.517590755, +19.4669220023)
Updated RA, DEC: 16:58:04.221, +19:28:00.97 (254.517587759, +19.4669359761)