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  • MPEC 2020-T69 : 1998 FL5

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    M.P.E.C. 2020-T69                              Issued 2020 October 10, 14:11 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
    
                                    1998 FL5                                 
    
    
                               Revision to MPEC 1998-F20                            
    
    Additional Observations:
         J98F05L  C2020 10 08.32671901 31 21.98 +00 06 21.4          21.37GVET069G96
         J98F05L  C2020 10 08.33372101 31 21.51 +00 06 06.3          21.99GVET069G96
         J98F05L  C2020 10 08.34076201 31 21.08 +00 05 52.4          20.82GVET069G96
         J98F05L  C2020 10 08.34591001 31 20.74 +00 05 41.1          20.58GVET069G96
         J98F05L KC2020 10 08.42931701 31 15.26 +00 02 46.2          21.02GVET069I52
         J98F05L KC2020 10 08.43099701 31 15.22 +00 02 43.3          21.05GVET069I52
         J98F05L KC2020 10 08.43267701 31 15.06 +00 02 38.6          21.25GVET069I52
         J98F05L KC2020 10 08.43435701 31 15.03 +00 02 34.6          21.19GVET069I52
         J98F05L IC2020 10 09.06863601 30 37.11 -00 19 50.9          21.0 GVET069L01
         J98F05L PC2020 10 09.07174901 30 36.92 -00 19 57.7          21.0 GVET069L01
         J98F05L pC2020 10 09.07486301 30 36.65 -00 20 04.1          21.3 GVET069L01
         J98F05L KC2020 10 09.25887201 30 26.43 -00 26 32.7          20.68GVET069I52
         J98F05L KC2020 10 09.26223201 30 26.20 -00 26 40.3          20.44GVET069I52
         J98F05L KC2020 10 09.26559101 30 25.97 -00 26 47.8          20.68GVET069I52
         J98F05L KC2020 10 09.26895201 30 25.75 -00 26 55.1          20.74GVET069I52
         J98F05L KC2020 10 09.28650301 30 24.15 -00 27 33.9          21.9 VuET069H21
         J98F05L KC2020 10 09.29259001 30 23.76 -00 27 46.9          21.2 VuET069H21
         J98F05L KC2020 10 09.29948801 30 23.29 -00 28 01.5          21.7 VuET069H21
         J98F05L KC2020 10 10.25237601 29 24.75 -01 02 12.0          21.29GVET069I52
         J98F05L KC2020 10 10.25489401 29 24.56 -01 02 18.0          20.85GVET069I52
         J98F05L KC2020 10 10.25741301 29 24.39 -01 02 23.0          21.44GVET069I52
         J98F05L KC2020 10 10.25993201 29 24.22 -01 02 28.7          20.82GVET069I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  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.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard, 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.  1.0-m reflector + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    201008 G96 4.31- 0.48-    201010 I52 4.41- 0.46-    MPC 32062   -2.66 days
    
    Orbital elements:
    1998 FL5                                                 Earth MOID = 0.1039 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
    M 332.30590              (2000.0)            P               Q                  
    n   0.51328685     Peri.  297.65992     -0.54923073     -0.83527894             
    a   1.5448843      Node   185.85268     +0.82750610     -0.53934004             
    e   0.3650855      Incl.   14.53224     +0.11653011     -0.10687100             
    P   1.92           H   21.35          G   0.15           U   2                  
    Residuals in seconds of arc
    980322 704  0.1+  1.5-    980325 402 (1.1-  2.9+)   980403 360  0.1-  0.1-
    980322 704  2.0+  0.2-    980325 402 (3.2-  3.7+)   980403 360  0.3-  0.1+
    980322 704  1.8-  1.3+    980325 402  1.0+  1.2-    980407 557  0.1-  1.3+
    980322 704  2.7-  0.5-    980325 360  0.5-  0.1-    980407 557  0.6+  1.2+
    980322 704 (4.4-  0.8+)   980325 360  0.2+  0.2+    980407 557  1.1+  0.8+
    980324 704  0.2+  1.1+    980325 360  0.5+  0.1+    980415 658  1.6-  1.1+
    980324 704  1.1+  0.7+    980325 046  0.3-  0.1+    980415 658  1.7-  0.8+
    980324 704  0.5+  0.9+    980325 046  0.6-  1.0+    980531 568  0.1+  0.8-
    980324 704  0.4+  0.3+    980325 046  0.2+  0.2+    980531 568  0.3-  0.6-
    980324 704  0.4+  0.7-    980325 046  0.2-  0.5+    201008 G96  0.0+  0.2-
    980324 566  0.7-  0.2+    980328 402 (0.3+  2.5+)   201008 G96  0.1-  0.5-
    980324 566  0.1+  0.1+    980328 402  0.6-  1.0-    201008 G96  0.3+  0.4+
    980324 566  0.3-  0.1+    980328 402  0.6-  0.4+    201008 G96  0.3+  0.1-
    980324 426  0.4-  1.2+    980329 658  0.5-  0.6-    201008 I52  0.7-  0.4+
    980324 426  0.4+  1.2+    980329 658  0.3-  0.4-    201008 I52  0.3+  1.1+
    980324 426  0.7-  0.7+    980329 658  0.4-  0.4-    201008 I52  0.5-  0.1-
    980325 046  1.4+  0.0-    980329 422  0.1-  0.2-    201008 I52  0.7+  0.5-
    980325 046  0.2+  1.4+    980329 422  0.1+  0.5+    201009 L01  0.4-  0.1-
    980325 046  1.5-  2.5-    980330 046  0.3+  0.7-    201009 L01  0.2-  0.3-
    980325 046  0.2+  1.0+    980330 046  0.2-  0.0-    201009 L01  1.2-  0.1-
    980325 704  0.3-  0.2-    980330 046  0.2-  0.7-    201009 I52  0.4+  0.6+
    980325 704  0.6-  0.3+    980330 046  0.6+  0.3+    201009 I52  0.3+  0.1+
    980325 704  0.9+  0.6+    980331 402 (1.2+  6.8-)   201009 I52  0.2+  0.2-
    980325 704  0.4-  0.6-    980331 402 (0.6-  3.7-)   201009 I52  0.3+  0.3-
    980325 704  0.3+  0.2+    980331 402  0.7+  0.6-    201009 H21  0.2-  0.2+
    980325 704  0.0-  1.9-    980331 557  0.4+  1.8-    201009 H21  0.0+  0.2+
    980325 704  1.3+  0.9+    980331 557  0.4-  0.8-    201009 H21  0.1-  0.3+
    980325 704  0.0-  1.2-    980331 557  0.4+  0.5+    201010 I52  0.1+  0.0+
    980325 704  0.9+  1.3+    980331 557  0.4-  0.4-    201010 I52  0.1-  0.5-
    980325 704  3.0-  0.1-    980402 402  0.8+  0.2+    201010 I52  0.0-  0.0-
    980325 426  0.0-  0.8-    980402 402  0.0-  0.3+    201010 I52  0.0+  0.3-
    980325 426  0.5+  0.8+    980402 402  0.3+  0.2-
    980325 426  0.2+  0.6+    980403 360  0.2+  0.1+
    
    Ephemeris:
    1998 FL5                 a,e,i = 1.54, 0.37, 15                  q = 0.9809
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 09 10    01 42 23.3 +11 35 02   0.7271  1.6299   139.5    23.6    22.8
    ...
    2020 09 25    01 40 51.4 +06 48 32   0.5861  1.5568   156.0    15.2    22.0
    ...
    2020 10 03    01 36 03.4 +03 03 27   0.5272  1.5162   165.1     9.7    21.5
    ...
    2020 10 09    01 30 41.8 -00 17 10   0.4915  1.4851   169.6     6.9    21.2
    2020 10 10    01 29 40.3 -00 52 54   0.4864  1.4798   169.8     6.8    21.1
    2020 10 11    01 28 36.6 -01 29 11   0.4814  1.4746   169.8     6.9    21.1
    ...
    2020 10 17    01 21 38.2 -05 16 14   0.4564  1.4429   165.4    10.0    21.1
    ...
    2020 10 25    01 11 25.2 -10 28 05   0.4352  1.4000   154.6    17.7    21.2
    ...
    2020 11 09    00 54 13.6 -19 07 55   0.4263  1.3187   133.0    33.3    21.5
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-T69
    


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