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  • MPEC 2018-D69 : 2018 DF1

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    M.P.E.C. 2018-D69                                Issued 2018 Feb. 25, 16:46 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 DF1
    
    Observations:
         K18D01F* C2018 02 22.42286 11 04 42.19 +08 24 35.8          19.6 GUED069G96
         K18D01F  C2018 02 22.42852 11 04 38.02 +08 25 30.4          19.2 GUED069G96
         K18D01F  C2018 02 22.43419 11 04 33.92 +08 26 24.6                UED069G96
         K18D01F  C2018 02 22.43988 11 04 29.64 +08 27 19.7          19.6 GUED069G96
         K18D01F  C2018 02 22.50144 11 03 45.32 +08 37 03.0          19.9 GUED069I52
         K18D01F  C2018 02 22.50168 11 03 45.13 +08 37 04.3          19.5 GUED069I52
         K18D01F  C2018 02 22.50192 11 03 44.95 +08 37 07.0          18.6 GUED069I52
         K18D01F  C2018 02 22.50216 11 03 44.85 +08 37 07.9          18.9 GUED069I52
         K18D01F  C2018 02 22.88310 10 59 56.32 +09 32 28.0          19.5 VSED069033
         K18D01F  C2018 02 22.88454 10 59 55.43 +09 32 40.0          19.6 VSED069033
         K18D01F  C2018 02 22.88598 10 59 54.53 +09 32 51.9          19.7 VSED069033
         K18D01F KC2018 02 22.99589 10 58 47.84 +09 47 45.1                UED069J95
         K18D01F KC2018 02 22.99991 10 58 45.36 +09 48 16.8                UED069J95
         K18D01F KC2018 02 23.00394 10 58 42.89 +09 48 48.5          19.8 GUED069J95
         K18D01F KC2018 02 23.13945 10 57 21.62 +10 06 39.9          19.2 RUED069Z84
         K18D01F KC2018 02 23.14903 10 57 16.04 +10 07 51.4          19.4 RUED069Z84
         K18D01F KC2018 02 23.15879 10 57 10.38 +10 09 04.0          19.5 RUED069Z84
         K18D01F  C2018 02 23.17611 10 57 13.06 +10 11 18.1          20.8 GUED069I52
         K18D01F  C2018 02 23.17635 10 57 12.99 +10 11 20.7          18.8 GUED069I52
         K18D01F  C2018 02 23.17684 10 57 12.65 +10 11 24.1          20.3 GUED069I52
         K18D01F  C2018 02 23.17926110 57 10.91 +10 11 40.6          19.7 GUED069H01
         K18D01F  C2018 02 23.18868010 57 05.54 +10 12 51.5          19.5 GUED069H01
         K18D01F  C2018 02 23.19885510 56 59.75 +10 14 07.8          19.6 GUED069H01
         K18D01F  C2018 02 23.20267410 56 57.57 +10 14 36.3          19.8 GUED069H01
         K18D01F  C2018 02 23.27256 10 56 18.16 +10 23 15.6          19.8 GUED069703
         K18D01F  C2018 02 23.27777 10 56 15.21 +10 23 53.1          19.9 GUED069703
         K18D01F  C2018 02 23.28299 10 56 12.28 +10 24 30.6          20.1 GUED069703
         K18D01F  C2018 02 23.28821 10 56 09.20 +10 25 06.9          20.2 GUED069703
         K18D01F  C2018 02 24.85453 10 45 13.20 +12 52 57.7          20.5 VSED069033
         K18D01F  C2018 02 24.85700 10 45 12.32 +12 53 08.9          20.5 VSED069033
         K18D01F  C2018 02 24.85949 10 45 11.43 +12 53 20.1          20.6 VSED069033
         K18D01F  C2018 02 24.86197 10 45 10.55 +12 53 31.4          20.3 VSED069033
         K18D01F pC2018 02 24.99740 10 44 21.79 +13 03 42.0          20.3 VSED069L01
         K18D01F pC2018 02 25.00401 10 44 19.43 +13 04 10.0          20.6 VSED069L01
         K18D01F pC2018 02 25.01121 10 44 16.88 +13 04 40.5          20.4 VSED069L01
         K18D01F  C2018 02 25.17685110 43 29.76 +13 16 31.0          20.1 GUED069H01
         K18D01F  C2018 02 25.18052110 43 28.54 +13 16 46.6          20.4 GUED069H01
         K18D01F KC2018 02 25.19099810 43 25.00 +13 17 30.4          20.2 GUED069H01
         K18D01F  C2018 02 25.19883110 43 22.35 +13 18 03.3          20.7 GUED069H01
         K18D01F  C2018 02 25.22152 10 43 14.96 +13 19 39.8          20.7 GUED069G96
         K18D01F  C2018 02 25.22669 10 43 13.26 +13 20 00.9          20.4 GUED069G96
         K18D01F  C2018 02 25.23184 10 43 11.53 +13 20 22.6          19.9 GUED069G96
         K18D01F  C2018 02 25.23513 10 43 10.37 +13 20 35.7          20.7 GUED069I52
         K18D01F  C2018 02 25.23589 10 43 10.11 +13 20 39.5          20.6 GUED069I52
         K18D01F  C2018 02 25.23665 10 43 09.89 +13 20 42.2          20.0 GUED069I52
         K18D01F  C2018 02 25.23702 10 43 09.76 +13 20 43.7          20.2 GUED069G96
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers U. Laux,
        B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    703 Catalina Sky Survey.  Observers D. C. Fuls, B. M. Africano.  Measurers
        E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
        F. C. Shelly.  0.68-m Schmidt + 10K CCD.
    G96 Mt. Lemmon Survey.  Observers J. A. Johnson, G. J. Leonard.  Measurers
        E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
        F. C. Shelly.  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 reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers D. C. Fuls,
        R. A. Kowalski.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. G. Matheny, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    Z84 Calar Alto-Schmidt.  Observer E. Schwab.  Measurers E. Schwab, D. Koschny,
        M. Micheli.  0.8-m f/3 Schmidt + CCD.
    
    Orbital elements:
    2018 DF1                                                 Earth MOID = 0.0064 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M  46.73816              (2000.0)            P               Q
    n   0.55477567     Peri.  259.31121     +0.60975831     -0.79104097
    a   1.4668683      Node   152.92484     +0.76304579     +0.56899817
    e   0.6150504      Incl.    6.24182     +0.21437334     +0.22471151
    P   1.78           H   25.3           G   0.15           U   8
    Residuals in seconds of arc
    180222 G96  0.2-  0.0     180223 Z84  0.1-  0.0     180224 L01  0.1+  0.7+
    180222 G96  0.1+  0.0     180223 I52  0.6-  1.2-    180225 L01  0.2+  0.2+
    180222 G96  1.4+  0.4-    180223 I52  0.4+  0.4-    180225 L01  0.5+  0.2-
    180222 G96  0.1+  0.1+    180223 I52  0.5-  0.7-    180225 H01  0.1-  0.0
    180222 I52  0.1-  1.0+    180223 H01  0.1-  0.2-    180225 H01  0.1+  0.1+
    180222 I52  0.5-  0.1+    180223 H01  0.2-  0.2-    180225 H01  0.1+  0.1-
    180222 I52  0.6-  0.6+    180223 H01  0.0   0.3-    180225 H01  0.1+  0.1-
    180222 I52  0.4+  0.8-    180223 H01  0.0   0.3-    180225 G96  0.8-  0.1+
    180222 033 (3.3+  3.2-)   180223 703  0.0   1.3+    180225 G96  0.0   0.2-
    180222 033 (3.4+  3.2-)   180223 703  0.3+  1.0+    180225 G96  0.3+  0.1+
    180222 033 (3.4+  3.2-)   180223 703  0.9+  0.7+    180225 I52  0.3-  0.4-
    180222 J95  0.4+  0.2+    180223 703  0.7-  0.7-    180225 I52  0.3-  0.3+
    180222 J95  0.1-  0.0     180224 033  0.0   0.1+    180225 I52  0.2+  0.1-
    180223 J95  0.4-  0.2-    180224 033  0.1+  0.1+    180225 G96  0.2+  0.1-
    180223 Z84  0.1+  0.3-    180224 033  0.1+  0.1-
    180223 Z84  0.1+  0.2-    180224 033  0.2+  0.1-
    
    Ephemeris:
    2018 DF1                 a,e,i = 1.47, 0.62, 6                   q = 0.5647
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 01 26    21 43 46.4 -23 54 05   0.2561  0.7441    17.4   156.7    31.7
    ...
    2018 02 10    21 14 13.7 -29 53 37   0.08368 0.9066    16.0   162.5    31.7
    ...
    2018 02 18    14 02 56.3 -29 33 20   0.01972 0.9950   109.3    69.6    19.2
    ...
    2018 02 24    10 50 32.9 +11 41 54   0.07112 1.0603   174.0     5.6    20.1
    2018 02 25    10 44 21.8 +13 04 46   0.08159 1.0711   175.1     4.6    20.4
    2018 02 26    10 39 32.3 +14 08 10   0.09218 1.0818   174.7     4.9    20.7
    ...
    2018 03 04    10 24 19.0 +17 18 38   0.1576  1.1454   166.6    11.6    22.3
    ...
    2018 03 12    10 17 33.2 +18 35 27   0.2495  1.2275   157.2    18.3    23.7
    ...
    2018 03 27    10 17 44.0 +18 35 15   0.4379  1.3726   142.9    26.0    25.4
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-D69
    

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    MPEC number:

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    • 1997-B01 (the full form)
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    • B01 (the abbreviated form)