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  • MPEC 2022-E144 : 2022 EA4

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    M.P.E.C. 2022-E144                                Issued 2022 March 9, 08:39 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2022 EA4                                 
    
    
    Observations:
         K22E04A* C2022 03 06.42157512 03 42.562-06 44 04.86         21.68wUEE144F52
         K22E04A  C2022 03 06.45079612 03 43.542-06 46 17.24         21.39wUEE144F52
         K22E04A  C2022 03 06.46547112 03 43.998-06 47 23.70         21.81wUEE144F52
         K22E04A  C2022 03 07.54909012 04 35.240-08 11 56.18         21.40wUEE144F52
         K22E04A  C2022 03 07.55306712 04 35.380-08 12 15.52         22.31wUEE144F52
         K22E04A  C2022 03 07.56105012 04 35.651-08 12 53.16         21.00wUEE144F52
         K22E04A 1C2022 03 08.02726 12 04 59.99 -08 51 23.8          21.2 VXEE144033
         K22E04A 1C2022 03 08.03038 12 05 00.13 -08 51 39.5          20.9 VXEE144033
         K22E04A 1C2022 03 08.03350 12 05 00.25 -08 51 55.1          21.1 VXEE144033
         K22E04A |C2022 03 08.15947 12 05 08.00 -09 01 36.7          21.1 GVEE144807
         K22E04A |C2022 03 08.16709 12 05 08.30 -09 02 15.3          21.1 GVEE144807
         K22E04A |C2022 03 08.17471 12 05 08.57 -09 02 53.8          21.3 GVEE144807
         K22E04A KC2022 03 08.32324412 05 15.58 -09 16 08.3          21.00GVEE144I52
         K22E04A KC2022 03 08.32831112 05 15.78 -09 16 33.9          21.17GVEE144I52
         K22E04A KC2022 03 08.33214712 05 15.91 -09 16 53.7          20.95GVEE144I52
         K22E04A 1C2022 03 09.01154 12 05 50.86 -10 15 58.9          21.1 VXEE144033
         K22E04A 1C2022 03 09.01367 12 05 50.92 -10 16 10.4          21.1 VXEE144033
         K22E04A 1C2022 03 09.01581 12 05 51.02 -10 16 21.7          21.4 VXEE144033
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
        f/3 Schmidt + CCD.
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  1.00-m f/10.0 astrograph + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith.  Measurers K. Chambers, S. Chastel, 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.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer H. Groeller.  Measurers
        E. J. Christensen, G. A. Farneth, J. B. Fazekas, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
        Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos.
    
    Orbital elements:
    2022 EA4                                                 Earth MOID = 0.1183 AU
    Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
    M 340.86826              (2000.0)            P               Q                  
    n   0.20004472     Peri.  242.71544     -0.68756661     +0.72389372             
    a   2.8954628      Node   343.44393     -0.57553901     -0.59103013             
    e   0.6574741      Incl.   11.50468     -0.44272679     -0.35589501             
    P   4.93           H   23.44          G   0.15           U   8                  
    Residuals in seconds of arc
    220306 F52  0.0   0.1+    220308 033  0.2-  0.1+    220308 I52  0.2-  0.2-
    220306 F52  0.2+  0.1-    220308 033  0.1+  0.0     220308 I52  0.1+  0.0
    220306 F52  0.1-  0.2-    220308 033  0.0   0.0     220308 I52  0.1-  0.2-
    220307 F52  0.1+  0.0     220308 807  0.2-  0.2+    220309 033  0.5+  0.4-
    220307 F52  0.1+  0.1-    220308 807  0.1+  0.1+    220309 033  0.1+  0.5-
    220307 F52 (0.1-  0.8+)   220308 807  0.1-  0.1+    220309 033  0.2+  0.5-
    
    Ephemeris:
    2022 EA4                 a,e,i = 2.90, 0.66, 12                  q = 0.9918
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 02 07    11 43 02.8 +10 37 50   0.5101  1.4348   145.2    23.1    23.9
    ...
    2022 02 22    11 54 43.8 +04 12 42   0.3426  1.3089   155.7    18.1    22.6
    ...
    2022 03 02    12 00 23.1 -01 53 18   0.2671  1.2455   160.2    15.7    21.9
    ...
    2022 03 08    12 04 58.8 -08 48 29   0.2178  1.2004   160.9    15.7    21.4
    2022 03 09    12 05 50.2 -10 14 16   0.2104  1.1932   160.6    16.0    21.3
    2022 03 10    12 06 44.1 -11 45 45   0.2031  1.1860   160.1    16.5    21.2
    ...
    2022 03 16    12 13 27.8 -23 15 39   0.1650  1.1447   153.6    22.7    20.9
    ...
    2022 03 24    12 30 55.0 -45 56 22   0.1334  1.0953   135.1    40.0    20.8
    ...
    2022 04 08    20 00 16.6 -81 32 46   0.1512  1.0252    94.9    76.6    22.1
    
    M. P. C. Staff               (C) Copyright 2022 MPC           M.P.E.C. 2022-E144
    


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