[Iaude] MPEC Y74: 2021 YP [a=6.14,e=0.69,i=170.2,H=17.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Dec 30 01:55:28 EST 2021


M.P.E.C. 2021-Y74                             Issued 2021 December 30, 06:54 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 YP                                     


Observations:
     K21Y00P  C2021 11 01.54951207 12 32.947+35 08 44.11         21.77GVEY074F52
     K21Y00P  C2021 11 01.56097707 12 31.398+35 08 52.38         22.46GVEY074F52
     K21Y00P  C2021 11 09.54000606 50 44.511+36 45 05.07         21.61GVEY074F51
     K21Y00P  C2021 11 09.55607706 50 41.355+36 45 16.93         21.68GVEY074F51
     K21Y00P  C2021 11 09.56529006 50 39.529+36 45 23.37         22.29GVEY074F51
     K21Y00P  C2021 11 13.51474006 36 44.380+37 32 41.03         21.34GVEY074F52
     K21Y00P* C2021 12 21.29454803 02 09.89 +32 59 18.9          20.53GVEY074G96
     K21Y00P  C2021 12 21.29970503 02 08.31 +32 59 10.1          20.29GVEY074G96
     K21Y00P  C2021 12 21.30484803 02 06.71 +32 59 01.2          21.35GVEY074G96
     K21Y00P  C2021 12 21.30998303 02 05.11 +32 58 52.5          20.30GVEY074G96
     K21Y00P KC2021 12 21.33714103 01 56.82 +32 58 03.6          21.12GVEY074I52
     K21Y00P KC2021 12 21.33944503 01 56.10 +32 57 59.4          21.06GVEY074I52
     K21Y00P KC2021 12 21.34174603 01 55.29 +32 57 55.4                VEY074I52
     K21Y00P mC2021 12 21.34950403 01 52.98 +32 57 41.4          21.29GVEY074G96
     K21Y00P mC2021 12 21.35011603 01 52.83 +32 57 40.0          20.71GVEY074G96
     K21Y00P 1C2021 12 21.71783 03 00 01.69 +32 46 47.4          20.8 VVEY074033
     K21Y00P 1C2021 12 21.71944 03 00 01.19 +32 46 44.2          20.8 VVEY074033
     K21Y00P 1C2021 12 21.72106 03 00 00.68 +32 46 41.4          20.4 VVEY074033
     K21Y00P KC2021 12 21.74108102 59 54.64 +32 46 04.8          20.3 GVEY074J95
     K21Y00P KC2021 12 21.76047002 59 48.74 +32 45 31.4          20.3 GVEY074J95
     K21Y00P KC2021 12 21.77719602 59 43.68 +32 45 01.4          20.3 GVEY074J95
     K21Y00P KC2021 12 21.98588802 58 41.11 +32 38 50.8                uEY074H21
     K21Y00P KC2021 12 21.99986702 58 36.90 +32 38 26.3          20.8 VuEY074H21
     K21Y00P KC2021 12 22.00266302 58 36.05 +32 38 21.1          20.7 VuEY074H21
     K21Y00P KC2021 12 22.00601802 58 35.01 +32 38 15.2          20.8 VuEY074H21
     K21Y00P KC2021 12 22.99506102 53 43.55 +32 08 42.6          20.9 VuEY074H21
     K21Y00P KC2021 12 22.99851102 53 42.56 +32 08 36.1          20.8 VuEY074H21
     K21Y00P KC2021 12 23.91774 02 49 19.51 +31 40 53.3          20.4 GVEY074204
     K21Y00P KC2021 12 23.95175 02 49 09.91 +31 39 50.9                VEY074204
     K21Y00P 1C2021 12 24.84451 02 45 02.93 +31 12 54.8          21   GVEY074L81
     K21Y00P KC2021 12 29.02732002 27 25.27 +29 06 06.2          21.2 VuEY074H21
     K21Y00P KC2021 12 29.03181102 27 24.22 +29 05 58.4          21.4 VuEY074H21
     K21Y00P KC2021 12 29.03601002 27 23.21 +29 05 50.9          21.8 VuEY074H21
     K21Y00P |C2021 12 29.14702 02 26 57.28 +29 02 30.9                VEY074H06
     K21Y00P |C2021 12 29.15741 02 26 54.80 +29 02 12.7          21.1 GVEY074H06

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.
204 Schiaparelli Observatory.  Observer L. Buzzi.  Measurer A. Aletti.  0.84-m
    f/3.5 reflector + CCD.
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.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
    Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y.
    Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  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.
H06 iTelescope Observatory, Mayhill.  Observer H. Sato.  0.43-m f/6.8
    astrograph + CCD + f/4.5 focal reducer.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD,
    1.3-m f/4.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
    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.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.
L81 Skygems Namibia Remote Observatory.  Observers L. Buzzi, L. Demetz.
    Measurers L. Buzzi, G. Galli, A. Aletti.  0.51-m f/6.7 astrograph + CCD.

Orbital elements:
2021 YP                                                  Earth MOID = 0.9307 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Bell                    
M 354.49227              (2000.0)            P               Q                  
n   0.06475863     Peri.  156.90741     +0.94886383     +0.31536703             
a   6.1414504      Node   175.22286     +0.25651707     -0.79642181             
e   0.6866842      Incl.  170.19676     +0.18400115     -0.51599994             
P  15.2            H   17.61          G   0.15           U   6                  
Residuals in seconds of arc
211101 F52  0.3-  0.1-    211221 I52 (1.0-  0.1+)   211222 H21  0.2-  0.2-
211101 F52  0.0   0.1+    211221 G96  0.1-  0.1-    211222 H21  0.2+  0.7+
211109 F51  0.1+  0.1+    211221 G96  0.3+  0.4-    211222 H21  0.4+  0.3+
211109 F51  0.1+  0.1+    211221 033  0.3+  0.1+    211223 204  0.1-  0.2+
211109 F51  0.0   0.2-    211221 033  0.1+  0.2-    211223 204  0.2+  0.2-
211113 F52  0.1-  0.2+    211221 033  0.1-  0.2-    211224 L81  0.4-  0.5-
211221 G96  0.0   0.5-    211221 J95  0.2-  1.0-    211229 H21  0.5-  0.4+
211221 G96  0.1+  0.1-    211221 J95  0.5-  0.1-    211229 H21  0.4-  0.7+
211221 G96  0.1-  0.2+    211221 J95  0.4-  0.4-    211229 H21  0.6-  0.8+
211221 G96  0.3-  0.6+    211221 H21  0.3+  0.3-    211229 H06  0.5+  0.0
211221 I52  0.4+  0.1+    211221 H21  0.3+  0.1-    211229 H06  0.1-  0.5+
211221 I52  0.3+  0.0     211222 H21  0.2+  0.3-

Ephemeris:
2021 YP                  a,e,i = 6.14, 0.69, 170                 q = 1.9242
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 30    05 12 54.6 +39 20 09   1.4127  2.3614   159.4     8.5    20.8
...
2021 12 15    03 37 11.4 +35 51 51   1.3615  2.2814   152.7    11.4    20.8
...
2021 12 23    02 53 42.1 +32 08 36   1.4168  2.2408   137.2    17.3    21.0
...
2021 12 29    02 27 31.8 +29 06 58   1.4895  2.2115   125.6    21.2    21.2
2021 12 30    02 23 42.4 +28 37 03   1.5037  2.2067   123.7    21.8    21.3
2021 12 31    02 20 01.8 +28 07 25   1.5185  2.2020   121.8    22.3    21.3
...
2022 01 06    02 00 52.7 +25 18 03   1.6169  2.1740   111.1    25.0    21.5
...
2022 01 14    01 41 58.1 +22 02 02   1.7669  2.1385    98.0    27.1    21.7
...
2022 01 29    01 20 51.4 +17 31 19   2.0710  2.0779    76.7    27.5    22.0

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-Y74




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