[Iaude] MPEC F135: 2016 HN3 [a=2.15,e=0.55,i=19.3,H=21.6,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Mar 31 17:17:16 EDT 2019


M.P.E.C. 2019-F135                               Issued 2019 Mar. 31, 21:14 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 https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2016 HN3
 
                           Revision to MPEC 2016-H61
 
Additional Observations:
     K16H03N  C2019 02 06.47697911 39 47.393+41 13 45.97         24.12GVEF135T12
     K16H03N  C2019 02 06.48896311 39 46.987+41 14 00.45         23.79GVEF135T12
     K16H03N  C2019 03 07.55734311 00 37.143+49 37 10.04         22.99GVEF135T12
     K16H03N  C2019 03 07.56824411 00 35.755+49 37 16.89         23.39GVEF135T12
     K16H03N  C2019 03 08.38813910 58 54.273+49 46 09.34         23.40GVEF135T12
     K16H03N  C2019 03 08.39982910 58 52.748+49 46 16.80         23.38GVEF135T12
 
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer D. Fohring.
    Measurer D. J. Tholen.  2.24-m f/10.1 reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
190206 T12 12.0+  5.8-    190308 T12 15.1+  2.2-    MPO392479   -0.0063 day
 
Orbital elements:
2016 HN3                                            PHA, Earth MOID = 0.0312 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 333.99005              (2000.0)            P               Q
n   0.31269092     Peri.  199.77236     -0.12135297     +0.94678174
a   2.1497726      Node    64.24782     -0.86034885     +0.04946469
e   0.5540757      Incl.   19.32936     -0.49504881     -0.31805280
P   3.15           H   21.6           G   0.15           U   0
Residuals in seconds of arc
160422 C51  0.1+  0.3-    160426 568  0.0   0.0     160429 568  0.1-  0.0
160422 C51  0.5+  0.1-    160426 568  0.0   0.1-    160907 568  0.0   0.0
160422 C51  0.3-  0.6-    160426 568  0.0   0.1+    160907 568  0.0   0.0
160422 C51  0.0   0.5+    160427 568  0.2-  0.1+    190206 T12  0.1-  0.1-
160422 C51  0.0   0.0     160427 568  0.1-  0.0     190206 T12  0.1+  0.1+
160422 C51  0.8-  0.1+    160427 568  0.1+  0.0     190307 T12  0.0   0.0
160423 C51  0.2+  0.3-    160427 568  0.1+  0.0     190307 T12  0.0   0.0
160423 C51  0.1+  0.4+    160427 568  0.1+  0.0     190308 T12  0.0   0.0
160426 568  0.0   0.1-    160427 568  0.2-  0.1+    190308 T12  0.1+  0.0
160426 568  0.0   0.0     160429 568  0.0   0.0
160426 568  0.0   0.0     160429 568  0.2+  0.1-

Ephemeris:
2016 HN3                 a,e,i = 2.15, 0.55, 19                  q = 0.9586
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2019 03 01    11 13 24.6 +48 10 50   0.9610  1.8297   139.3    20.7    23.8
...
2019 03 16    10 42 29.3 +50 44 30   0.9021  1.7176   129.8    26.4    23.7
...
2019 03 24    10 25 31.8 +50 57 08   0.8840  1.6566   123.4    30.2    23.7
...
2019 03 30    10 14 11.3 +50 34 03   0.8746  1.6103   118.4    33.0    23.7
2019 03 31    10 12 28.3 +50 27 37   0.8733  1.6026   117.6    33.5    23.7
2019 04 01    10 10 48.8 +50 20 30   0.8721  1.5948   116.8    34.0    23.7
...
2019 04 07    10 02 10.4 +49 23 45   0.8659  1.5482   111.9    36.9    23.7
...
2019 04 15    09 54 29.5 +47 35 10   0.8592  1.4858   105.6    40.6    23.7
...
2019 04 30    09 51 44.1 +42 52 07   0.8449  1.3691    94.9    47.1    23.7

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-F135



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