[Iaude] MPEC J102: 2016 WQ48 [a=2.94,e=0.68,i=24.4,H=18.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat May 8 10:41:52 EDT 2021


M.P.E.C. 2021-J102                                  Issued 2021 May 8, 14:40 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 WQ48                                    


                           Revision to MPEC 2016-X31                            

Additional Observations:
     K16W48Q |C2021 04 10.40248 20 43 03.05 -47 48 31.6          21.4 GVEJ102807
     K16W48Q |C2021 04 10.40617 20 43 04.10 -47 48 30.1          21.2 GVEJ102807
     K16W48Q |C2021 04 10.40986 20 43 05.14 -47 48 28.5          21.1 GVEJ102807
     K16W48Q HC2021 04 11.13207 20 46 31.98 -47 42 50.4                VEJ102L81
     K16W48Q KC2021 04 11.14086 20 46 34.50 -47 42 46.8          21.0 GVEJ102L81
     K16W48Q HC2021 04 11.14885 20 46 36.81 -47 42 42.9                VEJ102L81

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    1.00-m f/10.0 astrograph + CCD.
L81 Skygems Namibia Remote Observatory.  Observers L. Buzzi, L. Demetz.
    Measurer L. Buzzi.  0.51-m f/6.7 astrograph + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
210410 807 0.06+ 0.04+    210411 L81 0.06+ 0.04+    MPO496067   +0.10 days

Orbital elements:
2016 WQ48                                                Earth MOID = 0.0785 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 319.36075              (2000.0)            P               Q                  
n   0.19592667     Peri.    2.33443     +0.96648787     +0.22656635             
a   2.9358938      Node   343.02990     -0.24172169     +0.64486338             
e   0.6830720      Incl.   24.42755     -0.08643967     +0.72994445             
P   5.03           H   18.25          G   0.15           U   2                  
Residuals in seconds of arc
161127 F51  0.4+  0.0     161203 033  0.6+  0.1-    170101 H21  0.8+  0.4-
161127 F51  0.5+  0.0     161203 033  1.1+  0.2+    170101 H21  0.5+  0.2-
161127 F51  0.3+  0.0     161203 033  0.5+  0.1-    170101 H21  0.4+  0.2+
161201 705  0.4+  0.2+    161203 033  0.5+  0.2+    170130 F51  0.0   0.2-
161201 705  0.4+  0.3+    161203 033  1.0+  0.0     170130 F51  0.0   0.1+
161201 705  0.4+  0.1+    161203 033  0.6+  0.1-    170130 F51  0.2+  0.1+
161202 705  0.1+  0.0     161203 033  0.8+  0.0     170217 F51  0.0   0.1+
161202 705  0.3+  0.0     161209 291  0.5+  0.1+    170217 F51  0.1-  0.0
161202 705  0.3+  0.1-    161209 291  0.5+  0.3-    210410 807  0.0   0.0
161202 I52  0.3-  0.6+    161209 291  0.7+  0.0     210410 807  0.0   0.1-
161202 I52  0.0   0.9-    161210 291  0.1+  0.2-    210410 807  0.0   0.1-
161202 I52  0.1-  0.2-    161210 291  0.7-  0.1+    210411 L81  0.7-  0.5+
161203 033  0.6+  0.5-    161210 291  1.0-  0.0     210411 L81  0.5-  0.1+
161203 033  0.9+  0.1+    161220 291  1.8-  0.2-    210411 L81  0.1-  0.3+
161203 033  0.7+  0.1-    161220 291  2.0-  0.4+
161203 033  0.5+  0.0     161220 291  1.2-  0.1+

Ephemeris:
2016 WQ48                a,e,i = 2.94, 0.68, 24                  q = 0.9305
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 08    20 31 40.0 -48 04 40   1.3841  1.5835    81.5    38.7    21.5
...
2021 04 23    21 44 20.0 -45 13 21   1.1891  1.4429    81.8    43.6    21.1
...
2021 05 01    22 23 34.8 -42 23 25   1.0994  1.3689    80.9    46.6    20.9
...
2021 05 07    22 52 30.7 -39 35 01   1.0393  1.3143    79.8    49.1    20.8
2021 05 08    22 57 15.8 -39 03 25   1.0299  1.3053    79.6    49.5    20.7
2021 05 09    23 01 59.4 -38 30 47   1.0207  1.2963    79.4    49.9    20.7
...
2021 05 15    23 29 47.5 -34 53 29   0.9697  1.2434    77.7    52.6    20.6
...
2021 05 23    00 05 10.2 -29 07 20   0.9134  1.1757    75.1    56.3    20.4
...
2021 06 07    01 06 19.9 -15 46 01   0.8472  1.0624    68.9    63.0    20.3

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-J102




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