• MPC Preparation (Info)

  • MPEC 2021-L31 : 2018 FL3

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    M.P.E.C. 2021-L31                                  Issued 2021 June 3, 14:00 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
    
                                    2018 FL3                                 
    
    
                               Revision to MPEC 2018-F91                            
    
    Additional Observations:
         K18F03L  C2021 05 15.56599719 12 36.421+48 15 08.04         22.88GVEL031T12
         K18F03L  C2021 05 15.57338819 12 36.468+48 15 17.11         22.64GVEL031T12
         K18F03L  C2021 06 02.50379019 07 29.176+52 37 36.47         23.11GVEL031T12
         K18F03L  C2021 06 02.50968719 07 28.893+52 37 39.62         23.02GVEL031T12
         K18F03L  C2021 06 02.51618719 07 28.576+52 37 43.04         23.03GVEL031T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. J. Tholen, D.
        Hung.  Measurer D. J. Tholen.  2.24-m f/10.1 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
    210515 T12 0.06+ 0.04+    210602 T12 0.06+ 0.03+    MPO457149   +0.09 days
    
    Orbital elements:
    2018 FL3                                                 Earth MOID = 0.2420 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 335.28935              (2000.0)            P               Q
    n   0.33912733     Peri.   11.40051     -0.96426004     +0.25982555
    a   2.0365458      Node   184.73071     -0.26411938     -0.92702262
    e   0.3937481      Incl.   38.99535     +0.02105998     +0.27040661
    P   2.91           H   20.4           G   0.15           U   1
    Residuals in seconds of arc
    180319 T08  0.6+  0.3-    180325 246  0.1+  0.4-    180408 G96  0.2-  0.2+
    180319 T08  0.7-  0.3+    180325 246  0.2-  0.6+    180408 G96  0.2-  0.1+
    180319 T08  0.1+  0.1-    180325 246  0.2+  0.3+    180408 G96  0.1-  0.3+
    180319 T08  0.5+  0.5+    180326 807  0.0   0.2-    180408 246  0.1+  0.7-
    180320 033  0.1+  0.2+    180326 807  0.1+  0.1-    180408 246  0.8+  1.5-
    180320 033  0.2+  0.3+    180326 807  0.4+  0.3-    180408 246  0.5-  0.3-
    180320 033  0.3+  0.6+    180327 204  0.0   0.2+    180408 246  0.6+  0.1+
    180321 I52  0.2-  0.0     180327 204  0.1+  0.1+    180408 A17  0.3-  0.2-
    180321 I52  0.2-  0.2+    180327 204  0.3+  0.2+    180408 A17  0.4-  0.1+
    180321 I52  0.5-  0.3-    180327 703  0.0   0.4+    180408 A17  0.2-  0.2-
    180321 I52  0.4-  0.2-    180327 703  0.2-  0.4+    180412 703  0.4-  0.2+
    180321 G96  0.0   0.1+    180327 703  0.7-  0.6-    180412 703  0.3+  0.4-
    180321 G96  0.1-  0.0     180327 703  0.6+  0.1-    180412 703  0.6-  0.2-
    180321 G96  0.0   0.1+    180327 I52  0.1-  0.3-    180412 703  0.2+  0.1-
    180321 G96  0.1-  0.0     180327 I52  0.2-  0.6-    180418 I52  0.3-  0.0
    180321 K61  0.4+  0.1+    180327 I52  0.0   0.3-    180418 I52  0.0   0.6+
    180321 K61  0.5+  0.1+    180328 I52  0.8-  0.5-    180418 I52  0.3-  0.2-
    180321 K61  0.3+  0.3+    180328 I52  0.0   0.3-    180418 I52  0.1+  0.1+
    180321 246  0.7+  0.4+    180328 I52  0.0   0.0     180421 I52  0.2+  0.2-
    180321 246  0.1-  0.8-    180328 I52  0.4-  0.5-    180421 I52  0.1-  0.1+
    180321 246  0.2-  0.9-    180329 I52  0.1+  0.3+    180421 I52  0.2-  0.1-
    180321 246  1.4-  0.3+    180329 I52  0.0   0.1+    180421 I52  0.4-  0.1-
    180321 L01  0.3+  0.1-    180329 I52  0.2-  0.3-    180426 I52  0.5-  0.5+
    180321 L01  0.5+  0.2-    180404 I52  0.3-  0.1-    180426 I52  0.7-  0.0
    180321 L01  0.2-  0.2-    180404 I52  0.2-  0.1-    180426 I52  0.5-  0.4-
    180321 033  0.1+  0.3+    180404 I52  0.0   0.4-    180426 I52  0.1-  0.1+
    180321 033  0.1+  0.1+    180404 I52  0.1-  0.1-    180512 I52  0.1+  0.3-
    180321 L01  0.4+  0.3+    180405 I52  0.2-  0.1+    180512 I52  0.1-  0.2-
    180322 I52  0.4-  0.2+    180405 I52  0.3-  0.2-    180512 I52  0.1+  0.1-
    180322 I52  0.1+  0.0     180405 I52  0.1-  0.1+    180522 H21  0.1+  0.5+
    180322 I52  0.2+  0.2-    180405 I52  0.1+  0.2-    180522 H21  0.4-  0.1-
    180322 I52  0.5-  0.4+    180406 K61  0.1+  0.6+    180522 H21  0.1+  0.6+
    180323 G40  0.6+  0.2-    180406 K61  0.3-  0.7+    180523 H21  1.4+  0.4+
    180323 G40  0.3+  0.2+    180406 246  0.2+  1.3+    180523 H21  0.9+  1.1+
    180323 G40  0.1+  0.3+    180406 246  0.4+  0.7+    180523 H21  0.2+  1.1+
    180325 246  0.7-  0.3-    180406 246  0.2+  1.2+    210515 T12  0.0   0.0
    180325 246  0.4+  0.4+    180406 A17  0.3+  0.4-    210515 T12  0.1+  0.0
    180325 246  0.4+  0.0     180407 A17  0.0   0.0     210602 T12  0.1-  0.0
    180325 246  0.2-  0.1+    180407 A17  0.2+  0.0     210602 T12  0.0   0.0
    180325 246  0.9+  1.0-    180408 G96  0.1-  0.2+    210602 T12  0.0   0.0
    
    Ephemeris:
    2018 FL3                 a,e,i = 2.04, 0.39, 39                  q = 1.2347
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 05 04    19 06 45.1 +43 35 01   0.8482  1.3800    95.6    46.6    22.5
    ...
    2021 05 19    19 12 54.7 +49 21 20   0.9187  1.4442    96.7    44.1    22.7
    ...
    2021 05 27    19 11 11.8 +51 26 18   0.9528  1.4811    97.7    42.7    22.8
    ...
    2021 06 02    19 07 50.4 +52 32 59   0.9765  1.5097    98.6    41.6    22.9
    2021 06 03    19 07 07.4 +52 41 49   0.9803  1.5145    98.8    41.4    22.9
    2021 06 04    19 06 21.9 +52 49 59   0.9840  1.5194    99.0    41.3    22.9
    ...
    2021 06 10    19 01 01.4 +53 24 50   1.0057  1.5488   100.1    40.2    22.9
    ...
    2021 06 18    18 52 20.8 +53 32 43   1.0325  1.5888   101.7    38.8    23.0
    ...
    2021 07 03    18 34 58.5 +51 48 40   1.0797  1.6654   105.2    36.1    23.1
    
    A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-L31
    


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