[Iaude] MPEC Y81: 2022 YF4 [a=1.00,e=0.45,i=7.0,H=23.63]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 24 09:10:11 EST 2023


M.P.E.C. 2023-Y81                             Issued 2023 December 24, 14:08 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

                                    2022 YF4                                    


                           Revision to MPEC 2022-Y148                           

Additional Observations:
     K22Y04F KC2016 12 22.62061809 21 54.052+40 30 11.26         23.93GVEY081F51
     K22Y04F  C2017 01 02.44857008 34 32.416+44 24 59.36         22.81GVEY081F51
     K22Y04F  C2017 01 02.46021808 34 28.838+44 25 10.78         23.57GVEY081F51
     K22Y04F  C2017 01 02.47193108 34 25.176+44 25 22.08         23.23GVEY081F51
     K22Y04F  C2017 01 02.48365308 34 21.498+44 25 32.93         23.36GVEY081F51
     K22Y04F KC2017 01 06.34826808 14 44.087+45 14 33.85         22.79GVEY081F51
     K22Y04F  C2017 12 13.54167109 41 46.605+38 12 53.21         23.42GVEY081F51
     K22Y04F  C2019 01 11.45951407 08 32.526+47 28 45.31         23.10GVEY081F51
     K22Y04F  C2019 01 11.47397207 08 28.030+47 28 38.76         22.95GVEY081F51
     K22Y04F  C2019 01 11.50290107 08 19.087+47 28 24.90         23.34GVEY081F51
     K22Y04F  C2019 01 12.41078507 03 55.382+47 21 08.98         23.31GVEY081F51
     K22Y04F  C2019 01 12.42382407 03 51.510+47 21 02.22         22.41GVEY081F51
     K22Y04F  C2019 01 12.43710107 03 47.536+47 20 55.35         23.40GVEY081F51
     K22Y04F  C2019 01 12.45028507 03 43.598+47 20 47.96         22.99GVEY081F51
     K22Y04F  C2020 01 01.45310907 42 22.744+48 54 02.12         23.03GVEY081F51
     K22Y04F  C2020 01 01.46681507 42 17.585+48 54 05.80         22.42GVEY081F51
     K22Y04F  C2020 01 01.49399707 42 07.210+48 54 11.61         22.96GVEY081F51
     K22Y04F  C2021 01 12.41200306 16 59.558+47 55 53.19         21.94GVEY081F51
     K22Y04F  C2021 01 12.42482606 16 56.381+47 55 38.89         23.62GVEY081F51
     K22Y04F  C2021 01 12.43768206 16 53.183+47 55 25.02         22.03GVEY081F51
     K22Y04F  C2023 12 12.49646008 37 05.091+54 37 29.64         22.05GVEY081F52
     K22Y04F  C2023 12 12.52102908 36 50.145+54 38 12.07         22.15GVEY081F52
     K22Y04F  C2023 12 15.28511 08 09 31.73 +55 38 39.2          21.6 GVEY081I52
     K22Y04F  C2023 12 15.29131 08 09 27.97 +55 38 45.9          21.5 GVEY081I52
     K22Y04F 7C2023 12 23.07722306 55 30.270+55 49 42.95         21.8 GVEY081Z84
     K22Y04F 7C2023 12 23.13699406 54 58.522+55 48 57.10               VEY081Z84
     K22Y04F 7C2023 12 23.19739606 54 26.786+55 48 07.76         21.9 GVEY081Z84

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer K. W. Wierzchos.
    Measurers B. Gray, D. Rankin, F. C. Shelly.  1.0-m f/2.0 prime focus +
    CCD.
Z84 Calar Alto-Schmidt.  Observers F. Ocana, R. Kresken, M. Micheli, L.
    Conversi.  Measurers F. Ocana, M. Micheli.  0.8-m f/3 Schmidt + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
161222 F51 1.10+ 0.98+    231223 Z84 0.48+ 0.18+    MPO782812   -0.15 days

Orbital elements:
2022 YF4                                                 Earth MOID = 0.0057 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 355.42592              (2000.0)            P               Q                  
n   0.98027773     Peri.  293.62537     +0.68802053     +0.72447526             
a   1.0036215      Node    20.03540     -0.61311986     +0.61127441             
e   0.4463250      Incl.    7.04041     -0.38821617     +0.31855801             
P   1.01           H   23.63          G   0.15           U   2                  
Residuals in seconds of arc
161222 F51  0.0   0.1+    200101 F51  0.4+  0.2+    221223 V06  0.1-  0.1-
170102 F51  0.1-  0.1-    200101 F51  0.1-  0.1-    221223 V06  0.1-  0.1+
170102 F51  0.3+  0.1+    210112 F51  0.3-  0.1-    221223 V06  0.3-  0.2+
170102 F51  0.1+  0.2+    210112 F51  0.3-  0.2-    221223 V06  0.4-  0.1+
170102 F51  0.3-  0.1-    210112 F51  0.4-  0.3+    221223 V06  0.4-  0.1-
170106 F51  0.2+  0.2+    221221 V00  0.2+  0.1-    221225 V06  0.1+  0.1-
171213 F51  0.2+  0.4+    221221 V00  0.2-  0.3-    221225 V06  0.1-  0.4+
190111 F51  0.4+  0.4-    221221 V00  0.2-  0.3+    221225 V06  0.0   0.3+
190111 F51  0.1+  0.1-    221221 V00  0.1+  0.2+    231212 F52  0.1+  0.4-
190111 F51  0.3-  0.0     221221 V06 (0.2-  4.4+)   231212 F52  0.3+  0.3-
190112 F51  0.2-  0.2-    221221 V06  0.2-  0.3-    231215 I52  0.3-  0.3+
190112 F51  0.2+  0.2-    221222 V06  0.1+  0.2+    231215 I52  0.2+  0.2+
190112 F51  0.3+  0.1-    221222 V06  0.0   0.1-    231223 Z84  0.0   0.1+
190112 F51  0.4+  0.5-    221223 V06  0.1-  0.0     231223 Z84  0.0   0.0
200101 F51  0.0   0.2-    221223 V06  0.2-  0.0     231223 Z84  0.1+  0.1+

Ephemeris:
2022 YF4                 a,e,i = 1.00, 0.45, 7                   q = 0.5557
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 24    10 51 53.4 +38 13 47   0.2048  1.0159    92.1    76.2    22.9
...
2023 12 09    09 09 53.6 +52 37 24   0.2169  1.1223   124.5    46.3    22.3
...
2023 12 17    07 52 25.1 +56 00 32   0.2370  1.1731   138.9    33.5    22.3
...
2023 12 23    06 56 11.1 +55 50 27   0.2600  1.2083   146.1    27.0    22.3
2023 12 24    06 47 46.4 +55 37 34   0.2645  1.2139   146.9    26.2    22.4
2023 12 25    06 39 42.8 +55 22 10   0.2692  1.2194   147.6    25.6    22.4
...
2023 12 31    05 59 12.9 +53 10 45   0.3012  1.2514   149.1    23.8    22.6
...
2024 01 08    05 24 42.5 +49 30 16   0.3534  1.2902   145.5    25.6    23.1
...
2024 01 23    05 00 10.9 +43 16 34   0.4744  1.3514   132.7    32.4    24.0

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-Y81




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