• MPC Preparation (Info)

  • MPEC 2018-H70 : 2018 HL1

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    Read MPEC 2018-H69 Read MPEC 2018-H71


    M.P.E.C. 2018-H70                                Issued 2018 Apr. 24, 10:29 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 HL1
    
    Observations:
         K18H01L  C2018 04 21.34032 16 00 20.88 +37 07 24.7          16.92gUEH070I41
         K18H01L  C2018 04 21.34067 16 00 18.01 +37 06 48.8          16.92gUEH070I41
         K18H01L  C2018 04 21.35122 15 58 54.18 +36 48 29.6          16.85gUEH070I41
         K18H01L  C2018 04 21.35156 15 58 51.33 +36 47 53.2          16.85gUEH070I41
         K18H01L* C2018 04 21.39356 15 53 21.09 +35 33 39.4          16.31RUEH070I41
         K18H01L  C2018 04 21.39391 15 53 18.40 +35 33 02.5          16.31RUEH070I41
         K18H01L  C2018 04 21.39459 15 53 13.09 +35 31 48.4          16.33RUEH070I41
         K18H01L  C2018 04 21.39494 15 53 10.36 +35 31 11.9          16.33RUEH070I41
         K18H01L  C2018 04 21.39554 15 53 05.76 +35 30 07.4          16.35RUEH070I41
         K18H01L  C2018 04 21.39589 15 53 03.03 +35 29 29.9          16.35RUEH070I41
         K18H01L  C2018 04 23.55596 13 29 23.91 -15 21 34.4          17.4 VmEH070Q66
         K18H01L  C2018 04 23.55795 13 29 19.80 -15 22 59.0          17.3 VmEH070Q66
         K18H01L  C2018 04 23.55875 13 29 18.29 -15 23 31.3          17.2 VmEH070Q66
         K18H01L  C2018 04 23.55975 13 29 16.18 -15 24 14.1          17.6 VmEH070Q66
         K18H01L  C2018 04 23.56115 13 29 13.33 -15 25 11.0          17.3 VmEH070Q66
         K18H01L  C2018 04 23.56194 13 29 11.70 -15 25 44.9          17.2 VmEH070Q66
         K18H01L  C2018 04 24.26024 13 11 00.88 -22 00 18.3          16.7 GUEH070703
         K18H01L  C2018 04 24.26560 13 10 53.17 -22 02 40.3          16.5 GUEH070703
         K18H01L  C2018 04 24.27097 13 10 45.47 -22 05 00.5                UEH070703
         K18H01L  C2018 04 24.27633 13 10 37.80 -22 07 22.4          16.8 GUEH070703
         K18H01L  C2018 04 24.30846813 09 51.14 -22 21 15.4          16.6 GUEH070H01
         K18H01L  C2018 04 24.31456213 09 42.63 -22 23 50.2          16.5 GUEH070H01
         K18H01L  C2018 04 24.32549413 09 27.46 -22 28 26.1          16.6 GUEH070H01
         K18H01L  C2018 04 24.32923613 09 22.30 -22 29 59.9          16.6 GUEH070H01
         K18H01L  C2018 04 24.34883 13 08 56.41 -22 38 05.5          16.0 GUEH070I52
         K18H01L  C2018 04 24.34902 13 08 56.13 -22 38 10.4          15.6 GUEH070I52
         K18H01L  C2018 04 24.34920 13 08 55.89 -22 38 14.8          15.7 GUEH070I52
         K18H01L  C2018 04 24.34938 13 08 55.64 -22 38 19.2          15.8 GUEH070I52
         K18H01L  C2018 04 24.37244113 08 23.74 -22 47 45.4          16.7 GUEH070H01
         K18H01L  C2018 04 24.37581613 08 19.26 -22 49 06.9          16.7 GUEH070H01
         K18H01L  C2018 04 24.38420313 08 08.16 -22 52 29.6          16.6 GUEH070H01
         K18H01L  C2018 04 24.39366913 07 55.75 -22 56 16.4          16.8 GUEH070H01
    
    Observer details:
    703 Catalina Sky Survey.  Observer B. M. Africano.  Measurers B. M. Africano,
        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. L. Seaman, F. C. Shelly.
        0.68-m Schmidt + 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.
    I41 Palomar Mountain--ZTF.  Observer A. U. Tomatic.  Measurers Q.-Z. Ye,
        T. A. Prince, H.-W. Lin, F. Masci.  1.2-m f/2.4 Schmidt.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer B. M. Africano.
        Measurers B. M. Africano, 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. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    Q66 Siding Spring-Janess-G, JAXA.  Observers T. Yanagisawa, H. Kurosaki.
        0.25-m f/2.8 reflector + CCD.
    
    Orbital elements:
    2018 HL1                                                 Earth MOID = 0.0120 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M  32.17462              (2000.0)            P               Q
    n   0.85863736     Peri.   78.85897     -0.33713393     -0.92445672
    a   1.0963003      Node    32.65951     +0.68226181     -0.37026309
    e   0.3635208      Incl.   19.27096     +0.64873688     -0.09102206
    P   1.15           H   24.1           G   0.15           U   7
    Residuals in seconds of arc
    180421 I41  0.4+  0.8+    180423 Q66  0.8-  0.6-    180424 H01  0.1+  0.1-
    180421 I41  0.5-  1.2+    180423 Q66  1.0+  0.5+    180424 H01  0.2+  0.0
    180421 I41  1.4+  1.0+    180423 Q66  0.1-  0.5-    180424 I52  0.4+  0.0
    180421 I41  0.4-  0.2+    180423 Q66  0.1-  1.1+    180424 I52  0.1+  0.2-
    180421 I41  0.4-  1.1-    180423 Q66  0.4-  0.2+    180424 I52  0.2+  0.1-
    180421 I41  0.0   0.4-    180424 703  0.7-  0.2+    180424 I52  0.1+  0.1-
    180421 I41  0.3-  1.4-    180424 703  0.6-  0.2-    180424 H01  0.4+  0.3-
    180421 I41  0.4-  0.3-    180424 703  0.5-  0.9+    180424 H01  0.5+  0.0
    180421 I41  0.3+  0.3-    180424 703  0.4-  0.5-    180424 H01  0.4+  0.4-
    180421 I41  0.2+  0.1-    180424 H01  0.0   0.1-    180424 H01  0.4+  0.3-
    180423 Q66  0.0   0.6+    180424 H01  0.0   0.1-
    
    Ephemeris:
    2018 HL1                 a,e,i = 1.10, 0.36, 19                  q = 0.6978
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 03 25    23 41 53.1 +42 50 10   0.2316  0.8391    41.9   127.5    26.0
    ...
    2018 04 09    23 17 54.5 +47 34 04   0.1047  0.9327    46.7   128.6    24.6
    ...
    2018 04 17    22 16 51.0 +53 53 01   0.03972 0.9839    59.1   118.9    21.8
    ...
    2018 04 23    13 49 52.4 -07 29 48   0.01675 1.0220   174.4     5.5    15.7
    2018 04 24    13 17 03.3 -19 50 31   0.02332 1.0283   166.4    13.3    16.8
    2018 04 25    12 57 21.5 -26 21 20   0.03075 1.0345   158.6    20.8    17.6
    ...
    2018 05 01    12 16 56.8 -37 19 48   0.07928 1.0716   142.7    34.7    20.2
    ...
    2018 05 09    12 06 56.1 -39 55 15   0.1465  1.1193   135.9    38.9    21.7
    ...
    2018 05 24    12 12 10.8 -40 43 46   0.2772  1.2024   127.7    41.8    23.3
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-H70
    

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    MPEC number:

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