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  • MPEC 2021-K71 : 2014 LN9

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    M.P.E.C. 2021-K71                                  Issued 2021 May 22, 11:50 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
    
                                    2014 LN9                                 
    
    
                               Revision to MPEC 2014-L23                            
    
    Additional Observations:
         K14L09N  C2021 05 08.51221215 48 39.053+03 37 57.39         22.37GVEK071F51
         K14L09N  C2021 05 08.52390315 48 37.363+03 38 24.53         22.34GVEK071F51
         K14L09N  C2021 05 08.53563415 48 35.664+03 38 51.50         21.88GVEK071F51
         K14L09N  C2021 05 08.54730015 48 33.957+03 39 18.38         21.75GVEK071F51
         K14L09N  C2021 05 14.46442515 32 44.671+07 47 17.98         21.54GVEK071F51
         K14L09N  C2021 05 14.47611315 32 42.501+07 47 49.40         21.75GVEK071F51
         K14L09N  C2021 05 14.48774215 32 40.334+07 48 20.72         22.08GVEK071F51
         K14L09N  C2021 05 20.24780615 13 00.35 +12 25 09.2          20.75GVEK071G96
         K14L09N  C2021 05 20.25292615 12 59.22 +12 25 24.0          21.76GVEK071G96
         K14L09N  C2021 05 20.25805415 12 58.00 +12 25 39.9          21.83GVEK071G96
         K14L09N  C2021 05 20.26317315 12 56.83 +12 25 55.1          22.08GVEK071G96
         K14L09N  C2021 05 20.31060815 12 45.61 +12 28 19.5          21.7 GVEK071H01
         K14L09N  C2021 05 20.31415815 12 44.80 +12 28 30.3          21.6 GVEK071H01
         K14L09N  C2021 05 20.32683415 12 41.82 +12 29 08.9          21.4 GVEK071H01
         K14L09N  C2021 05 20.33201915 12 40.60 +12 29 24.5          21.0 GVEK071H01
         K14L09N |C2021 05 22.20543 15 05 16.47 +14 06 17.7          21.6 GVEK071807
         K14L09N |C2021 05 22.21304 15 05 14.56 +14 06 42.0          21.5 GVEK071807
         K14L09N KC2021 05 22.21529515 05 14.61 +14 06 31.8          21.8 GVEK071H01
         K14L09N |C2021 05 22.22064 15 05 12.65 +14 07 05.6          21.5 GVEK071807
         K14L09N KC2021 05 22.22519715 05 12.11 +14 07 03.2          20.9 GVEK071H01
         K14L09N KC2021 05 22.23636115 05 09.31 +14 07 37.9          21.6 GVEK071H01
         K14L09N KC2021 05 22.24064215 05 08.23 +14 07 51.5          21.4 GVEK071H01
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  1.00-m f/10.0 astrograph + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
        Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers E. J. Christensen, G.
        A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
        Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
        Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    210508 F51 0.74+ 0.23+    210522 H01 0.69+ 0.60+    MPO303420   +0.96 days
    
    Orbital elements:
    2014 LN9                                                 Earth MOID = 0.2490 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
    M 295.52225              (2000.0)            P               Q                  
    n   0.28253530     Peri.  168.93860     +0.97927129     -0.16371199             
    a   2.3001398      Node   201.61678     +0.15217527     +0.98326154             
    e   0.8663208      Incl.   18.89066     +0.13368032     +0.07996954             
    P   3.49           H   20.82          G   0.15           U   0                  
    Residuals in seconds of arc
    140601 G96  0.4+  0.1-    140603 G96  0.1-  0.0     210508 F51  0.3-  0.2-
    140601 G96  0.4+  0.3+    140603 G96  0.4+  0.3-    210514 F51  0.3-  0.2+
    140601 G96  0.3+  0.1+    140603 G96  0.1+  0.5+    210514 F51  0.1+  0.0
    140601 G96  0.4+  0.1+    140603 G96  0.1+  0.3+    210514 F51  0.3+  0.2-
    140601 G96  1.7+  0.6-    140603 G96  0.1+  0.5+    210520 G96  0.6-  0.7+
    140601 G96  0.4-  0.5-    140604 G96  0.7+  0.6-    210520 G96  0.3+  0.2-
    140601 G96  0.3-  0.3+    140604 G96  0.5+  0.1+    210520 G96  0.1+  0.1+
    140601 104  0.3-  0.3+    140604 G96  0.2+  0.1+    210520 G96  0.5+  0.3-
    140601 J04  0.2-  0.3-    140604 G96  0.5+  0.2+    210520 H01  0.0   0.0
    140601 104  0.6+  0.3+    140604 G96  0.7+  0.1-    210520 H01  0.2+  0.0
    140601 J04  0.2+  0.2-    140606 H21  0.3-  0.2+    210520 H01  0.2+  0.0
    140601 J04  0.0   0.3-    140606 H21  0.0   0.1-    210520 H01  0.2+  0.1-
    140601 104  0.4+  0.0     140606 H21  0.6-  0.3-    210522 807  0.0   0.3-
    140602 H21  0.5-  0.0     140617 291  0.0   0.1-    210522 807  0.0   0.2+
    140602 H21  0.2-  0.2+    140617 291  0.3+  0.1+    210522 H01  0.2+  0.1-
    140602 H21  0.4-  0.3+    140617 291  0.5-  0.1+    210522 807  0.0   0.0
    140603 G96  0.3-  0.4+    140701 568  0.1+  0.0     210522 H01  0.0   0.2+
    140603 G96  0.2+  0.2+    140701 568  0.3+  0.1-    210522 H01  0.1+  0.2-
    140603 G96  0.2+  0.0     210508 F51  0.1+  0.1+    210522 H01  0.1+  0.0
    140603 G96  0.2-  0.5+    210508 F51  0.1+  0.2+
    140603 G96  0.4-  0.8+    210508 F51  0.0   0.0
    
    Ephemeris:
    2014 LN9                 a,e,i = 2.30, 0.87, 19                  q = 0.3075
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 04 22    16 14 18.4 -04 43 26   0.9437  1.8621   145.7    17.7    23.0
    ...
    2021 05 07    15 52 03.2 +02 40 50   0.7044  1.6775   156.1    14.1    22.0
    ...
    2021 05 15    15 31 06.4 +08 11 38   0.6037  1.5728   153.0    17.0    21.6
    ...
    2021 05 21    15 10 06.2 +13 03 36   0.5431  1.4911   145.3    22.7    21.4
    2021 05 22    15 06 07.1 +13 55 21   0.5343  1.4772   143.7    23.9    21.4
    2021 05 23    15 01 59.5 +14 47 49   0.5259  1.4632   142.0    25.2    21.4
    ...
    2021 05 29    14 34 10.0 +20 12 48   0.4838  1.3776   130.5    34.0    21.4
    ...
    2021 06 06    13 49 04.2 +27 20 56   0.4492  1.2582   112.7    48.1    21.4
    ...
    2021 06 21    12 06 03.3 +37 18 02   0.4384  1.0162    77.5    77.5    21.8
    
    A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-K71
    


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