[Iaude] MPEC H47: 2017 HJ2 [a=1.81,e=0.51,i=7.3,H=25.2]

mpec at si.edu mpec at si.edu
Sat Apr 22 19:17:26 EDT 2017


M.P.E.C. 2017-H47                                Issued 2017 Apr. 22, 23:14 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 HJ2
 
Observations:
     K17H02J* C2017 04 20.31491 12 10 22.461-02 07 48.35         20.5 wLEH047F51
     K17H02J  C2017 04 20.32729 12 10 28.811-02 10 03.84         20.6 wLEH047F51
     K17H02J  C2017 04 20.33970 12 10 35.201-02 12 20.17         21.0 wLEH047F51
     K17H02J KC2017 04 21.22883 12 18 21.09 -04 43 25.5                oEH047691
     K17H02J KC2017 04 21.23415 12 18 23.50 -04 44 15.7                oEH047691
     K17H02J KC2017 04 21.23949 12 18 25.90 -04 45 06.3                oEH047691
     K17H02J _C2017 04 21.41790112 19 50.164-05 12 34.08         20.8 GUEH047568
     K17H02J _C2017 04 21.41888512 19 50.598-05 12 43.09         20.7 GUEH047568
     K17H02J KC2017 04 21.46702312 20 15.78 -05 18 06.5          20.6 RtEH047474
     K17H02J KC2017 04 21.46942012 20 16.82 -05 18 28.0          20.7 RtEH047474
     K17H02J KC2017 04 21.47182312 20 17.91 -05 18 50.3          20.6 RtEH047474
     K17H02J KC2017 04 21.88043 12 23 28.59 -06 21 48.9          20.8 RUEH047587
     K17H02J KC2017 04 21.89604 12 23 35.09 -06 24 02.4                UEH047587
     K17H02J KC2017 04 21.96800 12 24 04.89 -06 34 13.3          20.3  SEH047104
     K17H02J KC2017 04 21.97661 12 24 08.48 -06 35 26.0          20.3  SEH047104
     K17H02J KC2017 04 21.98911 12 24 13.65 -06 37 12.3          20.3  SEH047104
     K17H02J KC2017 04 22.16769 12 25 37.65 -07 01 43.8                oEH047291
     K17H02J KC2017 04 22.17248 12 25 39.55 -07 02 23.5                oEH047291
     K17H02J  C2017 04 22.17376 12 25 40.00 -07 02 33.5          20.7 RoEH047926
     K17H02J  C2017 04 22.17731 12 25 41.46 -07 03 02.8          20.4 RoEH047926
     K17H02J  C2017 04 22.18086 12 25 42.84 -07 03 31.8          20.8 RoEH047926
     K17H02J  C2017 04 22.20113112 25 50.41 -07 06 22.3          20.1 GUEH047H01
     K17H02J  C2017 04 22.20861012 25 53.37 -07 07 23.5          21.3 GUEH047H01
     K17H02J  C2017 04 22.21792212 25 57.04 -07 08 39.5          20.7 GUEH047H01
     K17H02J  C2017 04 22.22293612 25 59.02 -07 09 20.5          20.1 GUEH047H01
     K17H02J KC2017 04 22.38973512 27 12.01 -07 29 28.5          20.6 RtEH047474
     K17H02J KC2017 04 22.39213312 27 12.96 -07 29 48.3          20.8 RtEH047474
     K17H02J KC2017 04 22.39452912 27 13.86 -07 30 07.1          20.5 RtEH047474
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri, M. D. Grazia.
    Measurers P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + 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.
568 Mauna Kea.  Observers R. J. Wainscoat, L. Wells.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
587 Sormano.  Observers K. Benmellouk, R. Bianchi, C. Casati, A. Mazzucotelli,
    A. V. Novelli.  Measurer P. Sicoli.  0.5-m f/6.8 reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer T. H. Bressi.  0.9-m f/3
    reflector + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
    T. Lowe, A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel,
    L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
    C. Waters, R. Weryk.  1.8-m Ritchey-Chretien + 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.
 
Orbital elements:
2017 HJ2                                                 Earth MOID = 0.0229 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 353.37981              (2000.0)            P               Q
n   0.40595318     Peri.  120.86816     -0.85283088     -0.51877715
a   1.8064201      Node    28.01196     +0.42525192     -0.75619774
e   0.5069439      Incl.    7.28809     +0.30305163     -0.39879223
P   2.43           H   25.2           G   0.15           U   7
Residuals in seconds of arc
170420 F51  0.1-  0.4+    170421 474  0.6+  0.6-    170422 926  0.2+  0.2-
170420 F51  0.2-  0.2+    170421 587  0.1+  0.2+    170422 H01  0.2-  0.3-
170420 F51  0.5+  0.7-    170421 587  0.3-  0.7+    170422 H01  0.1-  0.2-
170421 691  0.7-  0.5+    170421 104  0.4+  0.0     170422 H01  0.1-  0.1-
170421 691  0.5-  0.7+    170421 104  0.6+  0.0     170422 H01  0.0   0.2-
170421 691  0.6-  0.8+    170421 104  0.2+  1.0-    170422 474  0.3-  1.3+
170421 568  0.4+  0.9-    170422 291  0.2+  0.1-    170422 474  0.2-  0.6+
170421 568  0.4+  0.9-    170422 291  0.1+  0.3-    170422 474  0.7-  1.0+
170421 474  0.5+  0.8-    170422 926  0.0   0.4-
170421 474  0.2+  0.3-    170422 926  0.7+  0.4-

Ephemeris:
2017 HJ2                 a,e,i = 1.81, 0.51, 7                   q = 0.8907
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 23    03 02 15.1 +42 51 56   0.1527  0.9227    57.1   114.9    25.4
...
2017 04 07    06 10 59.5 +52 54 51   0.06150 0.9887    76.8    99.7    22.7
...
2017 04 15    10 51 49.6 +22 07 46   0.04838 1.0346   129.4    48.6    20.5
...
2017 04 21    12 16 25.7 -04 05 18   0.07441 1.0725   154.5    23.8    20.8
2017 04 22    12 24 20.8 -06 37 13   0.08029 1.0791   156.1    22.2    21.0
2017 04 23    12 31 17.1 -08 47 50   0.08643 1.0857   157.3    20.9    21.1
...
2017 04 29    12 59 45.3 -17 03 01   0.1269  1.1267   159.3    18.4    21.9
...
2017 05 07    13 20 47.4 -21 56 40   0.1873  1.1837   157.0    19.4    22.9
...
2017 05 22    13 44 20.1 -25 18 31   0.3162  1.2949   149.6    23.3    24.4

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H47




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