[Iaude] MPEC H74: 2017 HE4 [a=2.95,e=0.94,i=41.4,H=21.1]

mpec at si.edu mpec at si.edu
Thu Apr 27 22:29:22 EDT 2017


M.P.E.C. 2017-H74                                Issued 2017 Apr. 28, 02:25 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 http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 HE4
 
Observations:
     K17H04E* C2017 04 23.41269 15 49 48.41 +08 20 05.5          21.0 VqEH074G96
     K17H04E  C2017 04 23.41694 15 49 47.83 +08 20 29.4          21.1 VqEH074G96
     K17H04E  C2017 04 23.42120 15 49 47.41 +08 20 53.4          20.9 VqEH074G96
     K17H04E  C2017 04 23.42546 15 49 46.91 +08 21 17.1          21.6 VqEH074G96
     K17H04E  C2017 04 23.44968 15 49 43.98 +08 23 31.2          22.4 VqEH074G96
     K17H04E  C2017 04 23.45044 15 49 43.84 +08 23 33.6          21.2 VqEH074G96
     K17H04E  C2017 04 23.45119 15 49 43.75 +08 23 38.6                qEH074G96
     K17H04E  C2017 04 23.45194 15 49 43.75 +08 23 43.5                qEH074G96
     K17H04E KC2017 04 23.59309415 49 27.88 +08 37 09.1          20.8 RtEH074474
     K17H04E KC2017 04 23.59781115 49 27.32 +08 37 35.2          21.0 RtEH074474
     K17H04E KC2017 04 23.60252915 49 26.74 +08 38 02.3          21.7 RtEH074474
     K17H04E  C2017 04 24.38090 15 47 52.49 +09 52 06.4          20.4 VqEH074I52
     K17H04E  C2017 04 24.38236 15 47 52.26 +09 52 15.1          21.1 VqEH074I52
     K17H04E  C2017 04 24.38381 15 47 52.05 +09 52 24.2          22.0 VqEH074I52
     K17H04E  C2017 04 24.38647 15 47 51.69 +09 52 39.2          21.4 VqEH074I52
     K17H04E  C2017 04 24.39825 15 47 50.14 +09 53 49.7          20.6 RoEH074926
     K17H04E  C2017 04 24.40368 15 47 49.41 +09 54 21.7          20.8 RoEH074926
     K17H04E  C2017 04 24.41038 15 47 48.53 +09 55 01.2          21.6 RoEH074926
     K17H04E KC2017 04 25.31941615 45 48.06 +11 27 22.6          21.1 VuEH074H21
     K17H04E KC2017 04 25.33193415 45 46.21 +11 28 41.3          21.1 VuEH074H21
     K17H04E KC2017 04 25.34114015 45 44.87 +11 29 39.2          21.2 VuEH074H21
     K17H04E  C2017 04 27.02499 15 41 28.26 +14 37 16.9          20.8 VSEH074033
     K17H04E  C2017 04 27.02809 15 41 27.73 +14 37 39.4          20.5 VSEH074033
     K17H04E  C2017 04 27.03431 15 41 26.66 +14 38 22.8          20.5 VSEH074033
     K17H04E  C2017 04 27.03742 15 41 26.11 +14 38 45.4          20.8 VSEH074033
     K17H04E  C2017 04 27.07828 15 41 19.05 +14 43 35.1          20.7 VSEH074033
     K17H04E  C2017 04 27.35375 15 40 32.62 +15 16 38.8          21.1 VqEH074I52
     K17H04E  C2017 04 27.35537 15 40 32.36 +15 16 51.7                qEH074I52
     K17H04E  C2017 04 27.35919 15 40 31.64 +15 17 18.2          21.1 VqEH074I52
     K17H04E  C2017 04 27.36082 15 40 31.31 +15 17 30.8          19.9 VqEH074I52
     K17H04E  C2017 04 27.42676 15 40 19.42 +15 25 30.3          20.8 RoEH074926
     K17H04E  C2017 04 27.43046 15 40 18.81 +15 25 57.3          20.8 RoEH074926
     K17H04E  C2017 04 27.43417 15 40 18.07 +15 26 25.1          21.1 RoEH074926
 
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers C. Hoegner,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer R. G. Matheny.  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.
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.  Observers J. A. Johnson,
    R. G. Matheny.  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.
 
Orbital elements:
2017 HE4                                                 Earth MOID = 0.2546 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 335.54030              (2000.0)            P               Q
n   0.19417195     Peri.  158.81963     +0.94782009     -0.01966777
a   2.9535549      Node   208.75479     +0.09853048     +0.96730235
e   0.9440706      Incl.   41.41054     +0.30319767     -0.25286230
P   5.08           H   21.1           G   0.15           U   8
Residuals in seconds of arc
170423 G96  0.1-  0.7-    170424 I52  0.8+  0.1-    170427 033  0.1+  0.6+
170423 G96  1.1-  0.2-    170424 I52  0.2+  0.0     170427 033  0.1+  0.1-
170423 G96  0.3+  0.3+    170424 I52  0.0   0.5+    170427 033  0.1-  0.4+
170423 G96  0.5+  0.6+    170424 I52  0.1-  0.2-    170427 033  0.1-  0.1+
170423 G96  0.4+  1.0+    170424 926  0.2+  0.5+    170427 I52  0.0   0.6-
170423 G96  0.4-  0.8-    170424 926  0.1+  0.5+    170427 I52  0.4+  0.6+
170423 G96  0.4-  0.1+    170424 926  0.3+  0.4+    170427 I52  0.0   0.6-
170423 G96  1.0+  0.9+    170425 H21  0.2+  0.3+    170427 I52  0.5-  0.2+
170423 474  0.2-  0.2+    170425 H21  0.2-  0.2+    170427 926  0.1+  0.3+
170423 474  0.0   0.1-    170425 H21  0.2-  0.1+    170427 926  0.9+  0.4+
170423 474  0.0   0.7+    170427 033  0.0   0.0     170427 926  0.1-  1.2+

Ephemeris:
2017 HE4                 a,e,i = 2.95, 0.94, 41                  q = 0.1652
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 29    16 03 29.3 -11 02 32   1.0309  1.8133   126.6    26.2    23.6
...
2017 04 13    16 01 40.5 -03 09 07   0.6857  1.5936   140.7    23.5    22.4
...
2017 04 21    15 53 51.9 +04 55 56   0.5231  1.4681   146.0    22.5    21.6
...
2017 04 27    15 41 32.6 +14 34 27   0.4180  1.3696   144.9    25.0    21.0
2017 04 28    15 38 37.3 +16 36 30   0.4024  1.3527   143.9    26.0    21.0
2017 04 29    15 35 22.0 +18 47 11   0.3876  1.3358   142.6    27.3    20.9
...
2017 05 05    15 05 30.6 +35 06 26   0.3170  1.2313   128.5    39.8    20.6
...
2017 05 13    13 16 47.6 +61 16 30   0.2911  1.0838    96.7    67.8    21.0
...
2017 05 28    06 42 07.7 +59 31 43   0.4388  0.7739    45.7   110.3    22.9

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H74




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