[Iaude] MPEC E99: 2018 ET3 [a=1.06,e=0.10,i=8.8,H=26.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Tue Mar 13 19:07:16 EDT 2018


M.P.E.C. 2018-E99                                Issued 2018 Mar. 13, 23:02 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 ET3
 
Observations:
     K18E03T* C2018 03 09.12986 08 04 52.47 +43 42 37.0          20.7 GUEE099G96
     K18E03T  C2018 03 09.13511 08 04 57.63 +43 43 43.6          21.9 GUEE099G96
     K18E03T  C2018 03 09.14035 08 05 02.72 +43 44 51.1          20.1 GUEE099G96
     K18E03T  C2018 03 09.14559 08 05 07.87 +43 45 57.2          20.8 GUEE099G96
     K18E03T  C2018 03 09.20769 08 06 09.14 +43 58 56.6          20.7 GUEE099I52
     K18E03T  C2018 03 09.21154 08 06 12.98 +43 59 44.2          20.4 GUEE099I52
     K18E03T  C2018 03 09.21346 08 06 14.69 +44 00 08.4          21.1 GUEE099I52
     K18E03T  C2018 03 09.21844508 06 18.14 +44 00 57.6          20.7 GUEE099H01
     K18E03T  C2018 03 09.22633708 06 25.94 +44 02 32.7          20.6 GUEE099H01
     K18E03T  C2018 03 09.23484108 06 34.38 +44 04 14.6          20.8 GUEE099H01
     K18E03T  C2018 03 09.23906908 06 38.58 +44 05 04.9          20.5 GUEE099H01
     K18E03T  C2018 03 10.13465008 23 35.56 +46 53 49.4          20.2 GUEE099H01
     K18E03T  C2018 03 10.14185208 23 42.50 +46 55 05.5          20.5 GUEE099H01
     K18E03T  C2018 03 10.14869208 23 49.12 +46 56 17.1          21.0 GUEE099H01
     K18E03T  C2018 03 10.15410 08 23 55.85 +46 57 19.2          20.7 GUEE099G96
     K18E03T  C2018 03 10.15451 08 23 56.12 +46 57 23.9          20.7 GUEE099G96
     K18E03T  C2018 03 10.15491 08 23 56.63 +46 57 27.9          21.5 GUEE099G96
     K18E03T  C2018 03 10.15532 08 23 57.02 +46 57 31.8          20.4 GUEE099G96
     K18E03T  C2018 03 10.15922908 23 59.26 +46 58 07.2          20.8 GUEE099H01
     K18E03T KC2018 03 13.16498409 16 07.95 +53 13 02.6          21.7 VuEE099H21
     K18E03T KC2018 03 13.17602809 16 17.27 +53 13 58.9          21.5 VuEE099H21
     K18E03T KC2018 03 13.18800009 16 27.38 +53 14 59.5          21.2 VuEE099H21
     K18E03T KC2018 03 13.82253 09 26 38.17 +54 05 07.1          21.5 RUEE099K51
     K18E03T KC2018 03 13.82455 09 26 39.86 +54 05 16.6          21.1 RUEE099K51
     K18E03T KC2018 03 13.82659 09 26 41.55 +54 05 26.3          21.5 RUEE099K51
 
Observer details:
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  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.
    1.5-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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer 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.
K51 Osservatorio del Celado, Castello Tesino.  Observers G. Favero, R. Furgoni.
    Measurer R. Furgoni.  0.80-m f/4 reflector + CCD.
 
Orbital elements:
2018 ET3                                                 Earth MOID = 0.0098 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  66.36988              (2000.0)            P               Q
n   0.89695906     Peri.  300.03487     -0.22701046     -0.97284550
a   1.0648480      Node   162.90869     +0.93805534     -0.23088066
e   0.1022938      Incl.    8.83574     +0.26176024     -0.01630222
P   1.10           H   26.6           G   0.15           U   6
Residuals in seconds of arc
180309 G96  0.6+  0.7+    180309 H01  0.1-  0.2-    180310 H01  0.1-  0.2-
180309 G96  0.3+  0.6-    180309 H01  0.2-  0.3-    180313 H21  0.0   0.3+
180309 G96  0.6-  0.7-    180310 H01  0.3+  0.0     180313 H21  0.2+  0.1+
180309 G96 (0.7-  1.9-)   180310 H01  0.0   0.1-    180313 H21  0.3+  0.4+
180309 I52 (2.6+  0.8-)   180310 H01  0.1+  0.4-    180313 K51  0.2-  0.4-
180309 I52 (3.2+  0.2-)   180310 G96  0.1+  0.1+    180313 K51  0.0   0.4-
180309 I52  1.3+  0.5+    180310 G96  1.2-  0.5+    180313 K51  0.1+  0.3-
180309 H01  0.1-  0.2-    180310 G96  0.1+  0.3+
180309 H01  0.2-  0.2-    180310 G96  0.1+  0.1-

Ephemeris:
2018 ET3                 a,e,i = 1.06, 0.10, 9                   q = 0.9559
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 11    03 19 37.5 -47 29 53   0.06577 0.9739    76.6    99.6    24.2
...
2018 02 26    05 04 45.6 -19 53 22   0.02798 0.9923    93.8    84.6    21.8
...
2018 03 06    07 05 49.5 +29 09 28   0.02400 1.0039   119.1    59.7    20.6
...
2018 03 12    08 56 45.1 +51 15 54   0.03526 1.0131   122.9    55.5    21.4
2018 03 13    09 13 28.0 +52 57 29   0.03773 1.0147   122.7    55.5    21.5
2018 03 14    09 29 14.3 +54 17 31   0.04030 1.0163   122.5    55.6    21.7
...
2018 03 20    10 42 55.7 +57 44 17   0.05696 1.0261   120.8    56.5    22.5
...
2018 03 28    11 38 38.8 +57 26 04   0.08065 1.0395   119.0    57.1    23.3
...
2018 04 12    12 25 35.0 +53 34 11   0.1260  1.0652   116.9    57.1    24.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-E99



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