[Iaude] MPEC E100: 2021 LX44 [a=39.48,e=0.14,i=3.2,H=6.96]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-E100                                Issued 2024 March 6, 20:04 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 LX44                                    


Additional Observations:
     K21L44X 3C2022 10 20.21696 19 12 21.803-21 01 45.89         22.2 VVEE100266
     K21L44X 3C2022 10 20.26058 19 12 21.906-21 01 45.83         22.2 VVEE100266
     K21L44X 3C2022 10 20.29842 19 12 21.996-21 01 45.77         22.2 VVEE100266
     K21L44X 3C2022 10 21.20926 19 12 24.285-21 01 44.56         21.9 VVEE100266
     K21L44X 3C2022 10 21.25420 19 12 24.396-21 01 44.49         21.9 VVEE100266
     K21L44X 3C2022 10 21.29846 19 12 24.507-21 01 44.41         21.9 VVEE100266
     K21L44X 3C2022 10 23.20599 19 12 29.620-21 01 41.40         22.1 VVEE100266
     K21L44X 3C2022 10 23.25093 19 12 29.741-21 01 41.31         22.1 VVEE100266
     K21L44X 3C2022 10 23.29489 19 12 29.861-21 01 41.21         22.1 VVEE100266

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  8.8-  1.7-    221023 266  8.9-  1.7-    MPO750185    -148 days

Orbital elements:
2021 LX44                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M  54.06478              (2000.0)            P               Q                  
n   0.00397341     Peri.   88.99644     -0.73311758     +0.67892151             
a  39.4784955      Node   133.76147     -0.64396016     -0.67401107             
e   0.1365259      Incl.    3.17908     -0.21875538     -0.29116090             
P 248              H    6.96          G   0.15           U   7                  
Residuals in seconds of arc
210423 W84  0.0   0.2-    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     221023 266  0.0   0.0
210609 266  0.0   0.0     221020 266  0.0   0.0     221023 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.0   0.0     221023 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.0   0.0
210617 266  0.0   0.0     221021 266  0.0   0.0

Ephemeris:
2021 LX44                a,e,i = 39.48, 0.14, 3                  q = 34.0887
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 02 05    19 30 42.0 -20 33 50  37.7349 36.8379    24.2     0.6    22.8
...
2024 02 20    19 32 24.8 -20 30 00  37.6067 36.8431    38.9     1.0    22.8
...
2024 02 28    19 33 13.4 -20 28 07  37.5168 36.8459    46.8     1.1    22.8
...
2024 03 05    19 33 46.5 -20 26 48  37.4408 36.8480    52.7     1.2    22.8
2024 03 06    19 33 51.8 -20 26 36  37.4275 36.8484    53.7     1.2    22.8
2024 03 07    19 33 56.9 -20 26 23  37.4140 36.8487    54.6     1.3    22.8
...
2024 03 13    19 34 25.7 -20 25 13  37.3297 36.8508    60.5     1.3    22.8
...
2024 03 21    19 34 58.5 -20 23 50  37.2093 36.8536    68.4     1.4    22.8
...
2024 04 05    19 35 41.7 -20 21 54  36.9672 36.8589    83.0     1.5    22.8

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-E100