[Iaude] MPEC B40: 2021 PW210 [a=2.75,e=0.64,i=3.8,H=27.1]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2024-B40                              Issued 2024 January 19, 00:21 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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

                                   2021 PW210                                   


Observations:
     K21PL0W* C2021 08 07.92703 20 53 34.45 -05 01 31.9          18.4 GVEB040K88
     K21PL0W  C2021 08 07.92752 20 53 36.44 -05 01 30.2          18.3 GVEB040K88
     K21PL0W  C2021 08 07.92850 20 53 40.34 -05 01 24.0          18.4 GVEB040K88
     K21PL0W  C2021 08 07.92900 20 53 42.31 -05 01 20.1          18.6 GVEB040K88
     K21PL0W  C2021 08 07.93516 20 54 07.06 -05 00 40.3          18.5 GVEB040K88
     K21PL0W  C2021 08 07.93688 20 54 14.08 -05 00 27.3          18.5 GVEB040K88
     K21PL0W ZC2021 08 08.38369021 28 27.57 -03 59 32.3                VEB040I41
     K21PL0W ZC2021 08 08.38403721 28 29.27 -03 59 29.4                VEB040I41
     K21PL0W ZC2021 08 09.36020323 04 04.92 -00 52 01.6                VEB040I41
     K21PL0W ZC2021 08 09.36055123 04 06.99 -00 51 57.0                VEB040I41
     K21PL0W ZC2021 08 09.44925623 13 14.31 -00 32 14.7                VEB040I41
     K21PL0W ZC2021 08 09.44960323 13 16.41 -00 32 10.1                VEB040I41

Observer details:
I41 Palomar Mountain--ZTF.  Observer Z. T. F. Collaboration.  Measurer K.
    Sarneczky.  1.2-m f/2.44 Oschin Schmidt + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.

Orbital elements:
2021 PW210                                               Earth MOID = 0.0053 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 161.93001              (2000.0)            P               Q                  
n   0.21628878     Peri.  199.16666     +0.92015504     +0.38897791             
a   2.7486117      Node   137.85427     -0.34995197     +0.86835032             
e   0.6355726      Incl.    3.83182     -0.17563689     +0.30767500             
P   4.56           H   27.14          G   0.15           U   8                  
Residuals in seconds of arc
210807 K88  0.1+  1.4+    210807 K88  0.6-  1.9-    210809 I41  0.5+  0.3+
210807 K88  0.4+  0.2-    210807 K88  0.8+  0.5-    210809 I41  0.6-  0.3+
210807 K88  0.0   0.5-    210808 I41  0.2-  0.3+    210809 I41  0.4+  0.3-
210807 K88  0.6-  0.0     210808 I41  0.2+  0.0     210809 I41  0.3-  0.3-

Ephemeris:
2021 PW210               a,e,i = 2.75, 0.64, 4                   q = 1.0017
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 12 20    11 27 01.2 +05 03 52   4.2664  4.4946    97.1    12.5    34.3
...
2024 01 04    11 27 32.5 +05 10 07   4.0261  4.4915   112.2    11.7    34.1
...
2024 01 12    11 26 25.6 +05 22 37   3.9061  4.4891   120.7    10.9    34.0
...
2024 01 18    11 24 55.8 +05 36 14   3.8221  4.4868   127.3    10.0    34.0
2024 01 19    11 24 37.5 +05 38 51   3.8087  4.4864   128.4     9.9    33.9
2024 01 20    11 24 18.3 +05 41 33   3.7955  4.4860   129.5     9.7    33.9
...
2024 01 26    11 22 04.0 +05 59 49   3.7205  4.4833   136.2     8.7    33.8
...
2024 02 03    11 18 15.8 +06 29 08   3.6329  4.4791   145.4     7.2    33.7
...
2024 02 18    11 08 58.4 +07 36 13   3.5152  4.4698   163.1     3.7    33.5

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-B40