[Iaude] MPEC A145: 2016 NZ55 [a=1.52,e=0.26,i=28.7,H=21.2]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Jan 10 06:35:16 EST 2019


M.P.E.C. 2019-A145                               Issued 2019 Jan. 10, 11:31 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 NZ55
 
                          Revision to MPEC 2016-O399
 
Additional Observations:
     K16N55Z KC2019 01 09.00564807 23 23.293-06 05 02.70         21.0 GVEA145J04
     K16N55Z KC2019 01 09.00946307 23 22.921-06 04 43.42         20.6 GVEA145J04
     K16N55Z KC2019 01 09.40950 07 22 42.18 -05 31 28.3          20.2 RoEA145691
     K16N55Z KC2019 01 09.41257 07 22 41.92 -05 31 13.4          20.9 RoEA145691
     K16N55Z KC2019 01 09.41563 07 22 41.56 -05 30 57.9          20.0 RoEA145691
     K16N55Z KC2019 01 09.92003407 21 53.876-04 48 47.95         20.4 GVEA145J04
     K16N55Z KC2019 01 09.92194907 21 53.677-04 48 38.64         20.1 GVEA145J04
     K16N55Z KC2019 01 09.92386407 21 53.490-04 48 28.71         20.3 GVEA145J04
 
Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer M. J. Brucker.
    0.9-m f/3 reflector + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
    M. Micheli, D. Koschny, A. Knoefel, M. Busch, E. Schwab.  1.0-m f/4.4
    reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
190109 J04 0.03+ 0.01+    190109 J04 0.03+ 0.01+    MPO397878   -0.010 day
 
Orbital elements:
2016 NZ55                                                Earth MOID = 0.3423 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  98.75534              (2000.0)            P               Q
n   0.52347647     Peri.  277.98597     +0.65680215     -0.63687012
a   1.5247709      Node   122.64579     +0.72632259     +0.67820840
e   0.2553113      Incl.   28.65216     -0.20264853     +0.36664673
P   1.88           H   21.2           G   0.15           U   3
Residuals in seconds of arc
160713 F51  0.1-  0.1+    160802 807  0.0   0.4+    160923 807  0.6-  0.9-
160713 F51  0.0   0.0     160802 807  0.0   0.6+    160923 807  0.5-  0.4-
160713 F51  0.0   0.2+    160802 807  0.1+  0.6+    161202 807  0.3+  0.4+
160713 F51  0.2-  0.1+    160804 807  0.0   0.4+    161202 807  0.4-  0.2+
160715 807  0.1-  0.0     160804 807  0.0   0.5+    161202 807  0.2-  0.7-
160715 807  0.1-  0.2+    160822 807  0.2+  0.2+    190109 J04  0.2-  0.1+
160715 807  0.0   0.2+    160822 807  0.4+  0.2+    190109 J04  0.4+  0.4+
160724 291  0.3-  0.2+    160822 807  0.3+  0.6+    190109 691  0.5-  0.1+
160724 291  0.1-  0.6+    160904 807  0.9+  0.3-    190109 691  0.4+  0.3-
160724 291  0.2-  0.4+    160904 807  0.5+  0.3+    190109 691  0.1-  0.2-
160726 691  0.3+  0.5+    160904 807  0.8+  0.1-    190109 J04  0.0   0.1+
160726 691  0.1-  1.1-    160905 807  0.4-  0.0     190109 J04  0.0   0.2-
160726 691  0.1+  1.7-    160905 807  0.2-  0.3+    190109 J04  0.2+  0.2+
160726 691  0.3+  1.6-    160905 807  0.3-  0.6+
160726 691  0.0   0.1-    160923 807  0.1-  0.1+

Ephemeris:
2016 NZ55                a,e,i = 1.52, 0.26, 29                  q = 1.1355
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 12 11    07 59 46.5 -33 46 57   0.4358  1.2080   110.4    49.8    21.7
...
2018 12 26    07 45 12.2 -22 55 14   0.3715  1.2509   129.0    37.7    21.1
...
2019 01 03    07 33 13.6 -14 01 20   0.3496  1.2763   141.8    28.5    20.7
...
2019 01 09    07 23 23.5 -06 05 21   0.3438  1.2963   151.7    21.1    20.5
2019 01 10    07 21 45.0 -04 41 57   0.3439  1.2997   153.2    19.9    20.4
2019 01 11    07 20 07.1 -03 17 54   0.3443  1.3031   154.7    18.8    20.4
...
2019 01 17    07 10 46.6 +05 08 28   0.3542  1.3239   161.2    13.9    20.3
...
2019 01 25    07 00 27.3 +15 34 33   0.3865  1.3523   159.0    15.1    20.6
...
2019 02 09    06 51 16.6 +29 49 25   0.4960  1.4070   141.0    26.2    21.6

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-A145



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