[Iaude] MPEC E57: 2021 LS44 [a=43.19,e=0.01,i=2.2,H=8.47]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Tue Mar 5 12:19:46 EST 2024


M.P.E.C. 2024-E57                                 Issued 2024 March 5, 17:18 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 LS44                                    


Additional Observations:
     K21L44S 3C2022 06 29.45229 19 15 48.124-21 09 32.58         24.6 rVEE057266
     K21L44S 3C2022 06 29.51531 19 15 47.816-21 09 33.14         24.6 rVEE057266
     K21L44S 3C2022 06 29.57696 19 15 47.515-21 09 33.67         24.6 rVEE057266
     K21L44S 3C2022 06 30.45132 19 15 43.330-21 09 41.59         24.9 rVEE057266
     K21L44S 3C2022 06 30.51472 19 15 43.019-21 09 42.15         24.9 rVEE057266
     K21L44S 3C2022 06 30.57688 19 15 42.715-21 09 42.70         24.9 rVEE057266
     K21L44S 3C2022 10 20.21696 19 10 58.885-21 20 35.99         24.1 VVEE057266
     K21L44S 3C2022 10 20.26058 19 10 58.968-21 20 35.91         24.1 VVEE057266
     K21L44S 3C2022 10 20.29842 19 10 59.040-21 20 35.85         24.1 VVEE057266
     K21L44S 3C2022 10 23.20599 19 11 05.182-21 20 30.88         23.9 VVEE057266
     K21L44S 3C2022 10 23.25093 19 11 05.281-21 20 30.78         23.9 VVEE057266
     K21L44S 3C2022 10 23.29489 19 11 05.377-21 20 30.68         23.9 VVEE057266

Observer details:
266 New Horizons KBO Search-Subaru.  Observers A. Verbiscer, F. Yoshida, T.
    Ito, S. Benecchi.  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
220629 266 0.05- 0.01-    221023 266 0.06- 0.01-    MPO735709  -36293 days

Orbital elements:
2021 LS44                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 187.12833              (2000.0)            P               Q                  
n   0.00347188     Peri.  324.84155     -0.21878702     -0.97543832             
a  43.1942512      Node   137.77983     +0.90373458     -0.21243570             
e   0.0149171      Incl.    2.17821     +0.36796203     -0.05823360             
P 284              H    8.47          G   0.15           U   6                  
Residuals in seconds of arc
210609 266  0.0   0.0     210906 266  0.0   0.0     220630 266  0.1+  0.1-
210609 266  0.0   0.0     210906 266  0.0   0.0     221020 266  0.0   0.0
210609 266  0.0   0.0     220629 266  0.1-  0.0     221020 266  0.0   0.0
210617 266  0.0   0.0     220629 266  0.1-  0.0     221020 266  0.0   0.0
210617 266  0.0   0.0     220629 266  0.1-  0.0     221023 266  0.0   0.0
210617 266  0.0   0.0     220630 266  0.1+  0.1-    221023 266  0.0   0.0
210906 266  0.0   0.0     220630 266  0.1+  0.1-    221023 266  0.0   0.0

Ephemeris:
2021 LS44                a,e,i = 43.19, 0.01, 2                  q = 42.5499
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 02 04    19 25 29.9 -20 57 31  44.7295 43.8340    24.4     0.5    25.0
...
2024 02 19    19 26 55.2 -20 54 29  44.5947 43.8339    39.3     0.8    25.1
...
2024 02 27    19 27 35.4 -20 53 01  44.5011 43.8339    47.2     0.9    25.1
...
2024 03 04    19 28 02.6 -20 51 59  44.4225 43.8339    53.1     1.0    25.1
2024 03 05    19 28 06.9 -20 51 49  44.4087 43.8339    54.1     1.0    25.1
2024 03 06    19 28 11.1 -20 51 40  44.3948 43.8339    55.0     1.1    25.1
...
2024 03 12    19 28 34.6 -20 50 45  44.3078 43.8338    60.9     1.1    25.1
...
2024 03 20    19 29 01.3 -20 49 41  44.1840 43.8338    68.8     1.2    25.1
...
2024 04 04    19 29 35.6 -20 48 13  43.9355 43.8337    83.5     1.3    25.1

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-E57




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