[Iaude] MPEC X224: 2018 ND1 [a=2.49,e=0.65,i=65.0,H=17.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Dec 14 09:06:03 EST 2021


M.P.E.C. 2021-X224                            Issued 2021 December 14, 14:04 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

                                    2018 ND1                                    


                           Revision to MPEC 2018-N37                            

Additional Observations:
     K18N01D KC2012 02 15.39781010 16 48.985+15 14 00.80         22.40GVEX224F51
     K18N01D /C2014 01 10.27470412 55 01.17 -62 13 01.7          22.3 rXEX224W84
     K18N01D /C2014 01 10.27620312 55 01.28 -62 13 05.0          22.2 rXEX224W84
     K18N01D KC2015 12 16.59868711 06 10.043+11 48 45.48         23.99GVEX224F51
     K18N01D KC2016 01 09.51518310 55 23.602+11 23 09.47         23.87GVEX224F51
     K18N01D KC2016 02 09.57320610 24 38.659+11 48 36.21         23.64GVEX224F51
     K18N01D KC2016 03 07.31621509 52 18.163+12 16 15.17         23.69GVEX224F51
     K18N01D KC2016 04 04.38127509 27 29.815+12 05 38.41         22.57GVEX224F51
     K18N01D KC2017 01 10.59920011 02 21.360-19 24 37.16         22.47GVEX224F51
     K18N01D /C2017 03 07.29358810 00 49.58 -22 36 38.0                XEX224W84
     K18N01D /C2017 03 07.29484310 00 49.51 -22 36 37.8                XEX224W84
     K18N01D /C2017 03 07.29610310 00 49.38 -22 36 38.0                XEX224W84
     K18N01D /C2017 03 07.29736010 00 49.33 -22 36 38.1                XEX224W84
     K18N01D /C2017 03 15.16454609 50 44.94 -22 12 29.9          22.9 iXEX224W84
     K18N01D /C2017 03 15.16609009 50 44.86 -22 12 29.7          22.9 zXEX224W84

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
W84 Cerro Tololo-DECam.  Observer .  Measurer K. Ly.  4.0-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
120215 F51  1.9- 15.1-    170315 W84  0.6-  2.4-    MPO466948   +1431 days

Orbital elements:
2018 ND1                                                 Earth MOID = 0.1453 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 327.69398              (2000.0)            P               Q                  
n   0.25147254     Peri.    9.41856     +0.89503991     +0.06010102             
a   2.4858543      Node   330.82546     -0.44489413     +0.05102459             
e   0.6542686      Incl.   65.03298     -0.03118935     +0.99688734             
P   3.92           H   17.43          G   0.15           U   1                  
Residuals in seconds of arc
120215 F51  0.3-  0.0     180707 G96 (0.7+  1.2-)   180709 A17  0.3-  0.6-
140110 W84  0.6-  0.6+    180708 L01  0.1+  0.2+    180709 A17  0.2+  0.3-
140110 W84  0.5-  0.0     180708 L01  0.1-  0.3-    180709 A17  0.1-  0.0
151216 F51  0.3+  0.2-    180708 L01  0.3-  0.6-    180710 734  0.6+  0.6+
160109 F51  0.4-  0.0     180708 204  0.3-  0.3+    180710 734  0.2+  0.7+
160209 F51  0.2+  0.0     180708 L01  0.2+  0.0     180710 734  0.1+  0.8+
160307 F51  0.4-  0.2+    180708 204  0.0   0.2-    180724 A17  0.1+  0.3+
160404 F51  0.2+  0.1+    180708 204  0.5+  0.3-    180724 A17  0.4-  0.2+
170110 F51  0.1+  0.1-    180708 J95  0.3-  0.1-    180724 A17  0.4-  0.6-
170307 W84  0.5-  0.4+    180708 J95  0.2+  0.1-    180828 204  0.1-  0.3+
170307 W84  0.1-  0.4+    180708 H21  0.1+  0.1-    180828 204  0.0   0.4+
170307 W84  0.5-  0.0     180708 H21  0.0   0.1-    181204 I52  0.4+  0.3-
170307 W84  0.2+  0.2-    180708 H21  0.2-  0.1-    181204 I52  0.0   0.3-
170315 W84  0.1-  0.0     180708 H21  0.2-  0.3+    181204 I52  0.3-  0.5-
170315 W84  0.4+  0.1-    180708 G96  0.3-  0.2-    190225 H21  1.2-  0.3+
180707 G96  0.1+  0.2-    180708 G96  0.0   0.1+    190225 H21 (0.5-  1.5+)
180707 G96  0.1+  0.2-    180708 G96  0.1+  0.2+    190225 H21  0.1+  1.2+
180707 G96  0.1-  0.0     180708 G96  0.3+  0.2+

Ephemeris:
2018 ND1                 a,e,i = 2.49, 0.65, 65                  q = 0.8594
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 14    12 15 58.5 -45 54 26   2.9698  2.3962    46.3    17.4    22.6
...
2021 11 29    12 45 50.3 -51 47 30   2.7727  2.2829    50.9    19.6    22.4
...
2021 12 07    13 04 37.9 -55 10 30   2.6667  2.2205    53.2    20.8    22.3
...
2021 12 13    13 20 39.3 -57 48 16   2.5878  2.1728    54.7    21.7    22.2
2021 12 14    13 23 31.6 -58 14 57   2.5748  2.1648    54.9    21.9    22.2
2021 12 15    13 26 27.7 -58 41 42   2.5617  2.1567    55.2    22.0    22.2
...
2021 12 21    13 45 38.2 -61 23 37   2.4846  2.1080    56.5    22.9    22.1
...
2021 12 29    14 16 36.2 -64 59 52   2.3849  2.0418    58.0    24.1    22.0
...
2022 01 13    15 42 22.1 -71 09 43   2.2109  1.9140    59.7    26.3    21.8

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-X224




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