[Iaude] MPEC E97: 2021 LQ44 [a=47.51,e=0.09,i=20.9,H=6.39]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-E97                                 Issued 2024 March 6, 19:59 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 LQ44                                    


Additional Observations:
     K21L44Q 3C2022 10 20.21696 19 13 30.420-21 01 39.40         23.2 VVEE097266
     K21L44Q 3C2022 10 20.26058 19 13 30.481-21 01 39.21         23.2 VVEE097266
     K21L44Q 3C2022 10 20.29842 19 13 30.534-21 01 39.04         23.2 VVEE097266
     K21L44Q 3C2022 10 21.20926 19 13 31.905-21 01 35.00         22.9 VVEE097266
     K21L44Q 3C2022 10 21.25420 19 13 31.971-21 01 34.80         22.9 VVEE097266
     K21L44Q 3C2022 10 21.29846 19 13 32.037-21 01 34.59         22.9 VVEE097266
     K21L44Q 3C2022 10 23.20599 19 13 35.125-21 01 25.94         23.2 VVEE097266
     K21L44Q 3C2022 10 23.25093 19 13 35.198-21 01 25.72         23.2 VVEE097266
     K21L44Q 3C2022 10 23.29489 19 13 35.270-21 01 25.50         23.2 VVEE097266

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 (or two decimals in degrees), reference and Delta-T
221020 266 0.04- 0.01-    221023 266 0.04- 0.01-    MPO735709  -13270 days

Orbital elements:
2021 LQ44                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 177.04838              (2000.0)            P               Q                  
n   0.00300984     Peri.  187.52023     -0.37020732     -0.86237003             
a  47.5087587      Node   284.72378     +0.86980406     -0.19126076             
e   0.0919599      Incl.   20.92050     +0.32617088     -0.46876139             
P 327              H    6.39          G   0.15           U   8                  
Residuals in seconds of arc
210609 266  0.0   0.0     210905 266  0.0   0.0     221021 266  0.0   0.0
210609 266  0.0   0.0     210905 266  0.0   0.0     221021 266  0.0   0.0
210609 266  0.0   0.0     210905 266  0.0   0.0     221021 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.1-  0.1-    221023 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.1-  0.1-    221023 266  0.0   0.0
210617 266  0.0   0.0     221020 266  0.1-  0.1-    221023 266  0.0   0.0

Ephemeris:
2021 LQ44                a,e,i = 47.51, 0.09, 21                 q = 43.1399
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 02 05    19 24 34.6 -20 16 28  52.7596 51.8722    25.6     0.5    23.7
...
2024 02 20    19 25 43.4 -20 13 02  52.6205 51.8724    40.5     0.7    23.7
...
2024 02 28    19 26 15.4 -20 11 19  52.5249 51.8725    48.4     0.8    23.7
...
2024 03 05    19 26 36.9 -20 10 05  52.4449 51.8725    54.3     0.9    23.7
2024 03 06    19 26 40.2 -20 09 53  52.4309 51.8725    55.3     0.9    23.7
2024 03 07    19 26 43.5 -20 09 41  52.4168 51.8726    56.3     0.9    23.7
...
2024 03 13    19 27 01.8 -20 08 33  52.3286 51.8726    62.2     1.0    23.7
...
2024 03 21    19 27 22.2 -20 07 08  52.2035 51.8727    70.1     1.0    23.7
...
2024 04 05    19 27 46.9 -20 04 56  51.9538 51.8728    84.8     1.1    23.7

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-E97