[Iaude] MPEC K145: COMET P/2018 L5 = P/2024 H1 (Leonard)

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Fri May 31 03:27:33 EDT 2024


M.P.E.C. 2024-K145                                 Issued 2024 May 31, 07:24 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  They are published
    on behalf of Division F of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.
			  
             Prepared using the Tamkin Foundation Computer Network

                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                     COMET P/2018 L5 = P/2024 H1 (Leonard)                      

     E. Schwab reports the recovery of Comet P/2018 L5 (Leonard) in images taken
on Apr. 18 UT from Calar Alto-Schmidt (Z84), as well as Sutherland-LCO B (K92)
on Apr. 21.

Observations:
    PK24H010*2C2024 04 18.06708015 03 32.70 -17 07 04.8          20.7 GVEK145Z84
    PK24H010 2C2024 04 18.07627215 03 32.31 -17 07 03.2          21.1 GVEK145Z84
    PK24H010 2C2024 04 18.08546215 03 31.96 -17 07 01.2          21.1 GVEK145Z84
    PK24H010 2C2024 04 18.09465415 03 31.64 -17 06 59.4          20.6 GVEK145Z84
    PK24H010 5C2024 04 21.11250 15 01 35.65 -16 56 58.8          21.2 GVEK145K92
    PK24H010 5C2024 04 21.12090 15 01 35.29 -16 56 57.4          20.8 GVEK145K92
    PK24H010 5C2024 04 21.12928 15 01 34.93 -16 56 55.6          21.3 GVEK145K92
    PK24H010 1C2024 04 29.34080814 55 47.338-16 27 06.19         20.95GVEK145G96
    PK24H010 1C2024 04 29.34602314 55 47.140-16 27 05.40         20.32GVEK145G96
    PK24H010 1C2024 04 29.35123514 55 46.902-16 27 04.50         20.66GVEK145G96
    PK24H010 1C2024 04 29.35644414 55 46.556-16 27 02.74         19.94GVEK145G96
    PK24H010  C2024 05 03.40225014 52 43.071-16 11 06.54         21.17wXEK145F51
    PK24H010  C2024 05 03.41408414 52 42.507-16 11 03.70         21.11wXEK145F51
    PK24H010  C2024 05 03.42591114 52 41.965-16 11 01.20         20.99wXEK145F51
    PK24H010  C2024 05 03.43771814 52 41.398-16 10 57.94         20.97wXEK145F51
    PK24H010 1C2024 05 09.32752114 48 07.542-15 46 57.29         20.92GVEK145G96
    PK24H010 1C2024 05 09.33264914 48 07.261-15 46 55.34         20.00GVEK145G96
    PK24H010 1C2024 05 09.33777214 48 06.980-15 46 54.34         21.11GVEK145G96
    PK24H010 1C2024 05 09.34289614 48 06.782-15 46 52.75         20.87GVEK145G96
    PK24H010  C2024 05 09.37292214 48 05.533-15 46 44.85         21.34wXEK145F51
    PK24H010  C2024 05 09.38402114 48 04.995-15 46 42.44         21.40wXEK145F51
    PK24H010  C2024 05 09.39510314 48 04.461-15 46 39.20         21.23wXEK145F51
    PK24H010  C2024 05 09.40617914 48 03.930-15 46 36.51         21.15wXEK145F51
    PK24H010 7C2024 05 11.90031814 46 08.046-15 36 19.05         18.8 GVEK145Z84
    PK24H010 7C2024 05 11.90896214 46 07.662-15 36 17.26         19.4 GVEK145Z84
    PK24H010  C2024 05 29.33464814 33 49.869-14 28 33.50         21.38wXEK145F51
    PK24H010  C2024 05 29.34696114 33 49.404-14 28 31.11         21.63wXEK145F51
    PK24H010  C2024 05 29.35929714 33 48.944-14 28 28.48         21.23wXEK145F51

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observers J. B. Fazekas, J. K. Hogan.  Measurers T.
    Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A.
    D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
    Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m
    reflector + 10K CCD.
K92 Sutherland-LCO B.  Observer E. Schwab.  1.0-m f/8 RC + CCD.
Z84 Calar Alto-Schmidt.  Observers E. Schwab, F. Ocana, L. Conversi, R.
    Kresken, M. Micheli.  Measurers E. Schwab, F. Ocana, M. Micheli.  0.8-m
    f/3 Schmidt + CCD.

Orbital elements:
    P/2018 L5 (Leonard)                                                         
Epoch 2025 Mar. 26.0 TT = JDT 2460760.5                                         
T 2025 Apr. 3.84230 TT                                  Rudenko                 
q   2.3089320            (2000.0)            P               Q                  
n   0.14262232     Peri.   93.94574     +0.68115867     +0.73173327             
a   3.6280873      Node   219.02507     -0.68609322     +0.62639814             
e   0.3635953      Incl.    2.20949     -0.25553661     +0.26868531             
P   6.91                                                                        
>From 232 observations 2018 June 8-2024 May 29, mean residual 0".7.              
                                                                                
    P/2018 L5 (Leonard)                                                         
Epoch 2018 May 2.0 TT = JDT 2458240.5                                           
T 2018 May 4.47981 TT                                   Rudenko                 
q   2.3033288            (2000.0)            P               Q                  
n   0.14286907     Peri.   93.63880     +0.67892369     +0.73380523             
a   3.6239086      Node   219.15735     -0.68800080     +0.62426965             
e   0.3644076      Incl.    2.20920     -0.25635429     +0.26798746             
P   6.90                                                                        
>From 232 observations 2018 June 8-2024 May 29, mean residual 0".7.              
                                                                                
    P/2018 L5 (Leonard)                                                         
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                                         
T 2025 Apr. 3.84177 TT                                  Rudenko                 
q   2.3086650            (2000.0)            P               Q                  
n   0.14255905     Peri.   93.95408     +0.68130358     +0.73159829             
a   3.6291605      Node   219.02808     -0.68596920     +0.62653327             
e   0.3638570      Incl.    2.20949     -0.25548324     +0.26873779             
P   6.91                                                                        
>From 232 observations 2018 June 8-2024 May 29, mean residual 0".7.              
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2024 05 01    14 54 32.8 -16 20 37   2.1173  3.1220   174.8     1.7  21.1
...
2024 05 16    14 43 00.2 -15 19 26   2.0736  3.0691   167.8     4.0  21.0
...
2024 05 24    14 37 15.3 -14 47 51   2.0758  3.0410   158.6     7.0  20.9
...
2024 05 30    14 33 25.9 -14 26 14   2.0882  3.0200   151.8     9.1  20.9
2024 05 31    14 32 50.8 -14 22 53   2.0911  3.0165   150.7     9.5  20.9
2024 06 01    14 32 16.7 -14 19 35   2.0943  3.0130   149.6     9.8  20.9
...
2024 06 07    14 29 14.0 -14 01 40   2.1179  2.9920   143.1    11.8  20.9
...
2024 06 15    14 26 17.1 -13 43 21   2.1609  2.9641   134.6    14.1  20.9
...
2024 06 30    14 24 33.8 -13 28 37   2.2694  2.9123   119.9    17.6  20.9

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-K145





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