[Iaude] MPEC E42: 2018 EC1 [a=1.14,e=0.23,i=11.4,H=26.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Mar 9 16:39:16 EST 2018


M.P.E.C. 2018-E42                                Issued 2018 Mar.  9, 21:35 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 EC1
 
Observations:
     K18E01C* C2018 03 07.33938 11 21 05.686+22 04 49.16         21.9 wUEE042F51
     K18E01C  C2018 03 07.35103 11 21 00.517+22 03 55.95         21.2 wUEE042F51
     K18E01C  C2018 03 07.36266 11 20 55.342+22 03 02.94         21.2 wUEE042F51
     K18E01C  C2018 03 07.37431 11 20 50.114+22 02 09.29         21.2 wUEE042F51
     K18E01C  C2018 03 07.48846 11 19 53.14 +21 52 18.9          21.4 GUEE042I52
     K18E01C  C2018 03 07.49096 11 19 52.02 +21 52 06.8          20.7 GUEE042I52
     K18E01C  C2018 03 07.49347 11 19 50.89 +21 51 54.3          21.3 GUEE042I52
     K18E01C KC2018 03 07.50366 11 19 46.60 +21 51 03.5          21.3 RoEE042291
     K18E01C KC2018 03 07.50622 11 19 45.53 +21 50 50.7          21.2 RoEE042291
     K18E01C KC2018 03 07.50880 11 19 44.41 +21 50 37.9          20.8 RoEE042291
     K18E01C _C2018 03 08.34452911 13 57.979+20 38 58.73         20.9 GUEE042568
     K18E01C _C2018 03 08.34547711 13 57.505+20 38 53.63         21.5 GUEE042568
     K18E01C _C2018 03 08.34642711 13 57.034+20 38 48.51         21.2 GUEE042568
     K18E01C  C2018 03 09.30003 11 06 14.52 +19 02 39.0          21.0 GUEE042I52
     K18E01C  C2018 03 09.30560 11 06 11.38 +19 02 02.7          20.1 GUEE042I52
     K18E01C  C2018 03 09.31118 11 06 08.18 +19 01 26.7          20.8 GUEE042I52
     K18E01C  C2018 03 09.31675 11 06 05.05 +19 00 50.3          19.8 GUEE042I52
 
Observer details:
291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, C. Wipper.  Measurers M. Micheli,
    R. Weryk.  3.6-m Canada-France-Hawaii Telescope + 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observers B. M. Africano,
    D. C. Fuls, J. A. Johnson.  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.
 
Orbital elements:
2018 EC1                                                 Earth MOID = 0.0275 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 313.56090              (2000.0)            P               Q
n   0.80936598     Peri.  259.58185     -0.32390542     +0.94562247
a   1.1403533      Node   351.34227     -0.77229185     -0.28241994
e   0.2309720      Incl.   11.38783     -0.54648932     -0.16136020
P   1.22           H   26.3           G   0.15           U   7
Residuals in seconds of arc
180307 F51  0.1-  0.0     180307 I52  1.1-  0.1+    180308 568  0.0   0.1+
180307 F51  0.2-  0.1-    180307 291  0.1+  0.4-    180309 I52  0.1+  0.2-
180307 F51  0.1+  0.2+    180307 291  0.5+  0.2-    180309 I52  0.2+  0.2-
180307 F51  0.2+  0.2+    180307 291  0.3+  0.2+    180309 I52  0.3-  0.2+
180307 I52  0.1+  0.7-    180308 568  0.1-  0.1+    180309 I52  0.0   0.2+
180307 I52  0.4-  0.1-    180308 568  0.1-  0.1+

Ephemeris:
2018 EC1                 a,e,i = 1.14, 0.23, 11                  q = 0.8770
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 07    12 13 06.0 +30 53 19   0.2262  1.1641   137.9    34.6    24.8
...
2018 02 22    12 06 36.4 +29 45 29   0.1370  1.1083   148.5    27.8    23.4
...
2018 03 02    11 47 28.7 +26 52 32   0.09418 1.0778   156.3    21.7    22.4
...
2018 03 08    11 16 25.5 +21 10 10   0.06488 1.0550   163.9    15.1    21.3
2018 03 09    11 08 44.5 +19 35 04   0.06037 1.0512   165.0    14.1    21.1
2018 03 10    11 00 01.6 +17 42 41   0.05601 1.0474   165.7    13.5    20.9
...
2018 03 16    09 34 46.3 -03 27 16   0.03552 1.0249   147.8    31.2    20.4
...
2018 03 24    05 51 38.1 -42 14 49   0.04101 0.9957    87.2    90.4    22.6
...
2018 04 08    02 34 42.0 -44 40 19   0.1042  0.9459    55.4   119.4    26.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-E42



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