[Iaude] MPEC L21: 2018 LB1 [a=2.78,e=0.64,i=1.2,H=20.1,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Jun 7 12:15:19 EDT 2018


M.P.E.C. 2018-L21                                Issued 2018 June 7, 16:12 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2018 LB1
 
Observations:
     K18L01B  C2018 05 19.42554115 11 37.034-20 25 29.19         21.8 GVEL021F51
     K18L01B  C2018 05 19.43743115 11 35.834-20 25 25.09         21.4 GVEL021F51
     K18L01B  C2018 05 19.46125115 11 33.474-20 25 16.76         21.2 GVEL021F51
     K18L01B* C2018 06 03.32624 14 47 34.365-18 46 40.46         21.1 wUEL021F51
     K18L01B  C2018 06 03.33666 14 47 33.344-18 46 36.08         21.8 wUEL021F51
     K18L01B  C2018 06 03.34708 14 47 32.321-18 46 31.52         21.8 wUEL021F51
     K18L01B  C2018 06 03.35747 14 47 31.281-18 46 27.02         21.9 wUEL021F51
     K18L01B KC2018 06 04.16669 14 46 15.97 -18 40 38.4                oEL021291
     K18L01B KC2018 06 04.18222 14 46 14.47 -18 40 32.1                oEL021291
     K18L01B KC2018 06 04.19963 14 46 12.84 -18 40 24.3                oEL021291
     K18L01B KC2018 06 06.19279 14 43 10.22 -18 26 00.7                oEL021291
     K18L01B KC2018 06 06.20478 14 43 09.07 -18 25 55.3                oEL021291
     K18L01B ^C2018 06 06.35186114 42 55.714-18 24 50.01         21.51GVEL021568
     K18L01B ^C2018 06 06.35280514 42 55.623-18 24 49.60         21.51GVEL021568
     K18L01B ^C2018 06 06.35381614 42 55.527-18 24 49.14         21.54GVEL021568
     K18L01B |C2018 06 07.06643 14 41 51.99 -18 19 31.4          21.2 GUEL021807
     K18L01B |C2018 06 07.08176 14 41 50.56 -18 19 24.8          21.6 GUEL021807
     K18L01B |C2018 06 07.09710 14 41 49.13 -18 19 18.2          21.6 GUEL021807
 
Observer details:
291 LPL/Spacewatch II.  Observer A. F. Tubbiolo.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, A. Petric.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  1.00-m f/10.0 astrograph
    + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
    1.8-m Ritchey-Chretien + CCD.
 
Orbital elements:
2018 LB1                                            PHA, Earth MOID = 0.0009 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 319.96448              (2000.0)            P               Q
n   0.21227321     Peri.   22.92683     +0.91974480     +0.39223822
a   2.7831669      Node   313.97061     -0.36323630     +0.83625209
e   0.6446207      Incl.    1.17738     -0.14875785     +0.38318615
P   4.64           H   20.1           G   0.15           U   6
Residuals in seconds of arc
180519 F51  0.1+  0.1+    180603 F51  0.3-  0.1+    180606 568  0.2-  0.1+
180519 F51  0.3-  0.0     180604 291  0.5-  0.0     180606 568  0.2-  0.1+
180519 F51  0.3-  0.0     180604 291  0.4-  0.3-    180606 568  0.2-  0.1+
180603 F51  0.2-  0.1+    180604 291  0.4+  0.0     180607 807  0.2-  0.1+
180603 F51  0.1-  0.0     180606 291  0.1-  0.1-    180607 807  0.2-  0.1+
180603 F51  0.1-  0.1+    180606 291  0.3-  0.2+    180607 807  0.2-  0.1+

Ephemeris:
2018 LB1                 a,e,i = 2.78, 0.64, 1                   q = 0.9891
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 05 08    15 28 12.1 -21 19 39   0.9718  1.9758   171.8     4.2    21.9
...
2018 05 23    15 05 53.3 -20 03 56   0.8470  1.8490   167.8     6.6    21.6
...
2018 05 31    14 52 51.7 -19 10 19   0.8024  1.7803   157.0    12.8    21.6
...
2018 06 06    14 43 27.6 -18 27 16   0.7779  1.7285   149.0    17.6    21.7
2018 06 07    14 41 57.8 -18 20 03   0.7745  1.7199   147.7    18.4    21.7
2018 06 08    14 40 29.6 -18 12 51   0.7712  1.7112   146.4    19.2    21.7
...
2018 06 14    14 32 19.8 -17 30 51   0.7554  1.6591   138.6    23.9    21.7
...
2018 06 22    14 23 41.7 -16 41 24   0.7419  1.5896   128.7    29.9    21.8
...
2018 07 07    14 16 04.5 -15 43 39   0.7296  1.4600   112.4    40.1    21.8

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-L21



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