[Iaude] MPEC E94: 2021 LY44 [a=58.35,e=0.39,i=4.1,H=8.51]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-E94                                 Issued 2024 March 6, 19:55 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

                                   2021 LY44                                    


Additional Observations:
     K21L44Y 3C2022 10 20.21696 19 11 22.969-21 02 38.97         24.5 VVEE094266
     K21L44Y 3C2022 10 20.26058 19 11 23.050-21 02 38.93         24.5 VVEE094266
     K21L44Y 3C2022 10 20.29842 19 11 23.122-21 02 38.89         24.5 VVEE094266
     K21L44Y 3C2022 10 21.20926 19 11 24.934-21 02 38.32         24.4 VVEE094266
     K21L44Y 3C2022 10 21.25420 19 11 25.022-21 02 38.28         24.4 VVEE094266
     K21L44Y 3C2022 10 21.29846 19 11 25.110-21 02 38.23         24.4 VVEE094266
     K21L44Y 3C2022 10 23.20599 19 11 29.163-21 02 36.38         24.3 VVEE094266
     K21L44Y 3C2022 10 23.25093 19 11 29.260-21 02 36.32         24.3 VVEE094266
     K21L44Y 3C2022 10 23.29489 19 11 29.355-21 02 36.26         24.3 VVEE094266

Observer details:
266 New Horizons KBO Search-Subaru.  Observers S. Benecchi, A. Verbiscer, T.
    Ito.  Measurers S. B. Porter, W. E. Fraser, J. J. Kavelaars, L. Peltier.
    8.2mn Subaru Telescope + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
221020 266 69.9+  8.9+    221023 266 70.5+  8.9+    MPO735710    -547 days

Orbital elements:
2021 LY44                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M  37.52986              (2000.0)            P               Q                  
n   0.00221148     Peri.   85.27477     -0.84063326     +0.53856638             
a  58.3464490      Node   127.29976     -0.52107981     -0.77539557             
e   0.3859025      Incl.    4.12990     -0.14768738     -0.32970890             
P 446              H    8.51          G   0.15           U   9                  
Residuals in seconds of arc
210609 266  0.0   0.0     210906 266  0.0   0.0     221021 266  0.0   0.0
210609 266  0.0   0.0     210906 266  0.0   0.0     221021 266  0.0   0.0
210609 266  0.0   0.0     210906 266  0.0   0.0     221021 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.0   0.1+    221023 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.0   0.1+    221023 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.0   0.1+    221023 266  0.0   0.0

Ephemeris:
2021 LY44                a,e,i = 58.35, 0.39, 4                  q = 35.8304
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 02 05    19 25 43.3 -20 43 17  46.5358 45.6469    25.4     0.5    25.2
...
2024 02 20    19 27 04.7 -20 40 27  46.4112 45.6607    40.2     0.8    25.3
...
2024 02 28    19 27 42.9 -20 39 04  46.3234 45.6680    48.1     0.9    25.3
...
2024 03 05    19 28 08.8 -20 38 06  46.2492 45.6735    54.0     1.0    25.3
2024 03 06    19 28 12.8 -20 37 57  46.2362 45.6745    55.0     1.0    25.3
2024 03 07    19 28 16.8 -20 37 48  46.2231 45.6754    56.0     1.0    25.3
...
2024 03 13    19 28 39.0 -20 36 57  46.1407 45.6809    61.9     1.1    25.3
...
2024 03 21    19 29 04.0 -20 35 58  46.0233 45.6882    69.8     1.2    25.3
...
2024 04 05    19 29 35.9 -20 34 37  45.7877 45.7020    84.5     1.2    25.3

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-E94