[Iaude] MPEC C17: 2021 UO120 [a=1.14,e=0.15,i=5.3,H=31.7]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2024-C17                              Issued 2024 February 1, 22:01 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 UO120                                   


Observations:
     K21UC0O  C2021 10 30.35705901 38 33.809-14 16 12.84         17.85GVEC017F51
     K21UC0O  C2021 10 30.36856201 38 16.412-13 24 45.28               VEC017F51
     K21UC0O  C2021 10 30.38056601 37 57.576-12 29 31.12         17.67GVEC017F51
     K21UC0O  C2021 10 30.38095101 37 56.958-12 27 42.03               VEC017F51
     K21UC0O* C2021 10 30.52380001 44 59.311+01 59 53.52         18.6 GVEC017P07
     K21UC0O  C2021 10 30.54444001 44 44.954+04 12 41.69         17.9 GVEC017P07
     K21UC0O  C2021 10 30.66494801 41 52.805+18 38 37.68         17.5 GVEC017P07
     K21UC0O  C2021 10 30.69844101 40 52.402+22 56 56.29         17.6 GVEC017P07
     K21UC0O  C2021 10 30.74417201 39 36.331+28 51 37.51         18.0 GVEC017P07

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.
P07 Space Surveillance Telescope, HEH Station.  Observers M. Blythe, R.
    Brungard, P. Festler, T. McVey, J. Paige, G. Spitz, L. Banks.  Measurers
    M. Cornell, M. Kotson, A. Lue, R. Rios, J. Ruprecht, J. Vaillancourt, J.
    Varey, H. Viggh, D. Woods, R. Monardez.  3.5-m f/1. Reflector + CCD.

Orbital elements:
2021 UO120                                               Earth MOID = 0.0011 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 167.62686              (2000.0)            P               Q                  
n   0.80523165     Peri.   29.87620     +0.40164564     -0.91414396             
a   1.1442533      Node    36.52197     +0.82086310     +0.33274913             
e   0.1453757      Incl.    5.29966     +0.40603517     +0.23155741             
P   1.22           H   31.78          G   0.15           U   6                  
Residuals in seconds of arc
211030 F51  0.1+  0.1-    211030 F51  0.0   0.6+    211030 P07  0.0   0.2-
211030 F51  0.2-  0.1+    211030 P07  0.2+  0.0     211030 P07  0.0   0.2+
211030 F51  0.1+  0.6-    211030 P07  0.3+  0.4-    211030 P07  0.2-  0.0

Ephemeris:
2021 UO120               a,e,i = 1.14, 0.15, 5                   q = 0.9779
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 01 02    19 53 16.2 -23 56 35   2.1235  1.2033    15.3    12.4    34.6
...
2024 01 17    20 47 11.9 -20 53 05   2.1090  1.1707    12.9    10.8    34.4
...
2024 01 25    21 15 35.3 -18 47 35   2.0986  1.1524    11.7    10.0    34.3
...
2024 01 31    21 36 41.7 -17 01 54   2.0899  1.1384    11.0     9.5    34.3
2024 02 01    21 40 11.9 -16 43 22   2.0884  1.1360    10.8     9.4    34.3
2024 02 02    21 43 41.9 -16 24 35   2.0869  1.1337    10.7     9.3    34.3
...
2024 02 08    22 04 37.1 -14 26 49   2.0774  1.1195    10.0     8.8    34.2
...
2024 02 16    22 32 20.3 -11 37 17   2.0641  1.1006     9.2     8.3    34.1
...
2024 03 02    23 24 04.2 -05 48 01   2.0382  1.0662     8.1     7.5    34.0

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-C17