[Iaude] MPEC X154: 2021 UF70 [a=2.71,e=0.63,i=14.1,H=22.0,PHA]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 8 04:40:17 EST 2021


M.P.E.C. 2021-X154                             Issued 2021 December 8, 09:39 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

                                   2021 UF70                                    


Observations:
     K21U70F* C2021 10 30.43348 03 09 11.626-16 25 46.80         22.2 wUEX154F52
     K21U70F  C2021 10 30.44377 03 09 11.077-16 25 52.94         22.1 wUEX154F52
     K21U70F  C2021 10 30.45406 03 09 10.512-16 25 59.09         22.0 wUEX154F52
     K21U70F  C2021 12 06.15207102 10 28.83 -12 38 30.6          20.71GVEX154G96
     K21U70F  C2021 12 06.15775702 10 27.98 -12 38 18.6          20.71GVEX154G96
     K21U70F  C2021 12 06.16342302 10 27.16 -12 38 07.1          20.58GVEX154G96
     K21U70F  C2021 12 06.16910402 10 26.31 -12 37 55.2          21.21GVEX154G96
     K21U70F  C2021 12 06.19513402 10 22.36 -12 37 02.1          20.7 GVEX154H01
     K21U70F  C2021 12 06.20296802 10 21.23 -12 36 45.4          20.7 GVEX154H01
     K21U70F  C2021 12 06.21391302 10 19.63 -12 36 22.3          20.6 GVEX154H01
     K21U70F KC2021 12 06.30136502 10 07.02 -12 33 17.1          20.13GVEX154I52
     K21U70F KC2021 12 06.30897102 10 05.91 -12 33 00.3          20.75GVEX154I52
     K21U70F KC2021 12 06.31657802 10 04.84 -12 32 44.4          20.24GVEX154I52
     K21U70F KC2021 12 06.31870902 10 04.54 -12 32 39.6          20.86GVEX154I52
     K21U70F KC2021 12 07.10615802 08 21.66 -12 04 14.4          20.80GVEX154I52
     K21U70F KC2021 12 07.10922502 08 21.21 -12 04 07.7          20.25GVEX154I52
     K21U70F KC2021 12 07.11229302 08 20.74 -12 04 00.0          21.30GVEX154I52
     K21U70F KC2021 12 07.11536102 08 20.26 -12 03 53.5          19.75GVEX154I52
     K21U70F 1C2021 12 07.81835 02 06 44.66 -11 37 18.4          21.0 VVEX154033
     K21U70F 1C2021 12 07.82043 02 06 44.40 -11 37 12.9          21.1 VVEX154033
     K21U70F 1C2021 12 07.82251 02 06 44.11 -11 37 07.7          21.4 VVEX154033
     K21U70F KC2021 12 08.08211 02 06 09.46 -11 26 51.4          20.0 GVEX154734
     K21U70F KC2021 12 08.08562 02 06 08.93 -11 26 42.6          20.5 GVEX154734
     K21U70F KC2021 12 08.08918 02 06 08.42 -11 26 34.2          20.3 GVEX154734
     K21U70F KC2021 12 08.09263 02 06 07.91 -11 26 25.7          20.3 GVEX154734
     K21U70F KC2021 12 08.09638 02 06 07.36 -11 26 16.6          20.7 GVEX154734
     K21U70F KC2021 12 08.11497002 06 05.18 -11 25 29.5          20.33GVEX154I52
     K21U70F KC2021 12 08.11748802 06 04.80 -11 25 23.3          20.34GVEX154I52
     K21U70F KC2021 12 08.12000602 06 04.42 -11 25 17.3          20.62GVEX154I52

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
    f/3 Schmidt + CCD.
734 Farpoint Observatory, Eskridge.  Observers G. Hug, D. Cromer, D. Goodin,
    R. Valentine.  Measurer D. Cromer.  0.7-m reflector + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
    Smith.  Measurers K. Chambers, S. Chastel, 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.
G96 Mt. Lemmon Survey.  Observer K. W. Wierzchos.  Measurers E. J.
    Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
    Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers D. C. Fuls, H.
    Groeller.  Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R.
    Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J.
    Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.

Orbital elements:
2021 UF70                                           PHA, Earth MOID = 0.0469 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Bell                    
M   0.72756              (2000.0)            P               Q                  
n   0.22141326     Peri.   28.78811     -0.39811681     -0.88440533             
a   2.7060364      Node    85.58429     +0.78788936     -0.46565685             
e   0.6335200      Incl.   14.14065     +0.46982270     +0.03147879             
P   4.45           H   22.05          G   0.15           U   6                  
Residuals in seconds of arc
211030 F52  0.0   0.0     211206 I52  0.1+  0.5-    211207 033  0.2-  0.0
211030 F52  0.1+  0.0     211206 I52  0.2-  0.1+    211208 734  0.0   0.8-
211030 F52  0.1-  0.0     211206 I52  0.0   0.3-    211208 734  0.2-  0.3-
211206 G96  0.1+  0.1+    211206 I52  0.1+  0.0     211208 734  0.0   0.3-
211206 G96  0.2-  0.3+    211207 I52  0.5+  0.0     211208 734  0.0   0.0
211206 G96  0.0   0.0     211207 I52  0.4+  0.1-    211208 734  0.1+  0.2+
211206 G96  0.3-  0.1+    211207 I52  0.2+  0.8+    211208 I52  0.2+  0.2-
211206 H01  0.3-  0.4-    211207 I52  0.3-  0.6+    211208 I52  0.0   0.1-
211206 H01  0.1+  0.1-    211207 033 (1.1-  1.0-)   211208 I52  0.1-  0.0
211206 H01  0.1+  0.0     211207 033  0.4-  0.3-

Ephemeris:
2021 UF70                a,e,i = 2.71, 0.63, 14                  q = 0.9917
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 08    03 00 41.7 -17 34 07   0.4156  1.3552   145.9    24.2    21.9
...
2021 11 23    02 37 29.9 -17 16 06   0.3123  1.2375   138.0    32.2    21.3
...
2021 12 01    02 21 37.3 -15 06 36   0.2653  1.1799   131.9    38.5    21.1
...
2021 12 07    02 08 35.0 -12 07 46   0.2331  1.1399   126.7    43.9    20.9
2021 12 08    02 06 20.0 -11 29 38   0.2280  1.1335   125.8    44.8    20.8
2021 12 09    02 04 03.7 -10 48 51   0.2229  1.1273   124.8    45.8    20.8
...
2021 12 15    01 49 55.2 -05 41 43   0.1939  1.0920   119.2    51.9    20.6
...
2021 12 23    01 28 49.9 +04 35 40   0.1599  1.0519   111.1    60.7    20.3
...
2022 01 07    00 27 25.1 +37 38 01   0.1231  1.0026    95.4    77.5    20.2

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X154




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