[Iaude] MPEC Y01: 2021 XL6 [a=1.47,e=0.34,i=23.1,H=21.0,PHA]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 15 20:25:34 EST 2021


M.P.E.C. 2021-Y01                             Issued 2021 December 16, 01:24 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 XL6                                    


Observations:
     K21X06L  C2021 12 04.05987 22 30 43.37 -07 37 32.8          21.0 GVEY001G96
     K21X06L  C2021 12 04.06504 22 30 43.95 -07 36 41.6          20.7 GVEY001G96
     K21X06L  C2021 12 04.07536 22 30 45.15 -07 35 00.8                VEY001G96
     K21X06L* C2021 12 13.10387122 50 19.14 +16 23 56.1          19.94GVEY001G96
     K21X06L  C2021 12 13.10907522 50 19.76 +16 24 42.2          19.97GVEY001G96
     K21X06L  C2021 12 13.11429222 50 20.37 +16 25 26.9          19.84GVEY001G96
     K21X06L  C2021 12 13.11950322 50 20.97 +16 26 13.7          20.29GVEY001G96
     K21X06L mC2021 12 13.16110122 50 25.92 +16 32 16.9          21.65GVEY001I52
     K21X06L mC2021 12 13.16233322 50 26.11 +16 32 27.1                VEY001I52
     K21X06L mC2021 12 13.16294922 50 26.07 +16 32 33.0                VEY001I52
     K21X06L mC2021 12 13.16495922 50 26.31 +16 32 50.7          19.79GVEY001V06
     K21X06L mC2021 12 13.16529122 50 26.34 +16 32 54.3          20.36GVEY001V06
     K21X06L  C2021 12 13.16572222 50 26.35 +16 32 56.4          19.9 GVEY001H01
     K21X06L mC2021 12 13.16595422 50 26.42 +16 33 00.1          21.11GVEY001V06
     K21X06L  C2021 12 13.17115722 50 27.00 +16 33 43.8          19.9 GVEY001H01
     K21X06L KC2021 12 13.18315922 50 28.47 +16 35 28.5          20.2 GVEY001H01
     K21X06L KC2021 12 13.72552 22 51 41.17 +17 54 08.5                VEY001204
     K21X06L KC2021 12 13.73954 22 51 43.16 +17 56 10.7          20.3 GVEY001I93
     K21X06L KC2021 12 13.74618 22 51 43.61 +17 57 06.3          20.2 GVEY001204
     K21X06L KC2021 12 13.74634 22 51 43.97 +17 57 09.1          20.5 GVEY001I93
     K21X06L KC2021 12 13.75300 22 51 44.73 +17 58 07.2          20.7 GVEY001I93
     K21X06L KC2021 12 13.77017422 51 46.52 +18 00 35.2          18.6 GZEY001C95
     K21X06L KC2021 12 13.77900422 51 47.54 +18 01 49.1          19.9 GVEY001203
     K21X06L bC2021 12 13.79506122 51 49.27 +18 04 06.7          20.4 GVEY001L01
     K21X06L bC2021 12 13.79766022 51 49.62 +18 04 29.4          20.3 GVEY001L01
     K21X06L bC2021 12 13.80025922 51 49.91 +18 04 51.7          20.1 GVEY001L01
     K21X06L KC2021 12 13.80182922 51 50.28 +18 05 05.6          18.0 GZEY001C95
     K21X06L bC2021 12 13.80306722 51 50.25 +18 05 15.4          20.5 GVEY001L01
     K21X06L bC2021 12 13.80543822 51 50.57 +18 05 35.6          20.0 GVEY001L01
     K21X06L KC2021 12 13.80884322 51 51.11 +18 06 05.7          20.1 GVEY001203
     K21X06L KC2021 12 14.00710822 52 17.86 +18 34 34.0          20.2 VuEY001H21
     K21X06L KC2021 12 14.01280722 52 18.53 +18 35 22.7                uEY001H21
     K21X06L KC2021 12 14.02679422 52 20.19 +18 37 22.3                uEY001H21
     K21X06L KC2021 12 14.02987022 52 20.54 +18 37 48.9          20.5 VuEY001H21
     K21X06L KC2021 12 15.75584522 56 08.55 +22 37 13.5          19.3 GZEY001C95
     K21X06L KC2021 12 15.79148122 56 12.82 +22 42 00.0          19.3 GZEY001C95

Observer details:
203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
    0.36-m f/5.76 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
C95 SATINO Remote Observatory, Haute Provence.  Observer J. Jahn.  0.60-m
    f/3.2 Newtonian reflector + CCD.
G96 Mt. Lemmon Survey.  Observer K. W. Wierzchos.  Measurers B. Gray, D.
    Rankin, F. C. Shelly, 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, R. L. Seaman, 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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  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.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer D. C. Fuls.  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.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XL6                                            PHA, Earth MOID = 0.0014 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  34.39132              (2000.0)            P               Q                  
n   0.55089089     Peri.  343.78441     +0.70346557     -0.62404064             
a   1.4737562      Node    59.91957     +0.68792241     +0.47757047             
e   0.3378457      Incl.   23.14772     +0.17860278     +0.61846562             
P   1.79           H   21.08          G   0.15           U   8                  
Residuals in seconds of arc
211204 G96  0.1+  0.2+    211213 H01  0.0   0.2+    211213 L01  0.1+  0.5+
211204 G96  0.1-  0.4+    211213 V06  0.3-  0.3+    211213 L01  0.2-  0.5+
211204 G96  0.0   0.6-    211213 H01  0.1-  0.1+    211213 C95  0.6-  0.8-
211213 G96  0.2+  0.5-    211213 H01  0.0   0.1+    211213 L01  0.2-  0.1+
211213 G96  0.5+  0.0     211213 204  0.3-  0.4+    211213 L01  0.3+  0.1-
211213 G96  0.5+  1.0-    211213 I93  0.0   0.6+    211213 203  0.1+  0.4+
211213 G96  0.4+  0.1+    211213 204  0.3-  0.0     211214 H21  0.1-  0.4-
211213 I52  0.8+  0.5-    211213 I93  0.1+  0.3+    211214 H21  0.1-  0.4-
211213 I52 (1.4+  1.1-)   211213 I93  0.2-  1.0+    211214 H21  0.2+  0.3-
211213 I52  0.2-  0.6-    211213 C95  0.5-  0.9+    211214 H21  0.0   0.1+
211213 V06  0.1-  0.4-    211213 203  0.3+  0.1+    211215 C95  0.6+  1.6-
211213 V06  0.3-  0.2+    211213 L01  0.4-  0.1+    211215 C95  0.3+  1.9-

Ephemeris:
2021 XL6                 a,e,i = 1.47, 0.34, 23                  q = 0.9759
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 16    21 45 55.6 -47 36 17   0.2531  0.9765    79.8    85.4    21.0
...
2021 12 01    22 23 55.7 -15 52 40   0.1951  0.9826    83.3    85.3    20.5
...
2021 12 09    22 41 27.3 +05 51 33   0.1943  0.9953    87.4    81.4    20.4
...
2021 12 15    22 54 29.0 +20 54 13   0.2095  1.0087    90.7    77.4    20.4
2021 12 16    22 56 41.5 +23 10 09   0.2131  1.0112    91.2    76.7    20.4
2021 12 17    22 58 55.2 +25 21 23   0.2171  1.0138    91.7    76.0    20.4
...
2021 12 23    23 12 51.5 +36 49 20   0.2455  1.0313    94.2    72.0    20.6
...
2021 12 31    23 33 59.2 +48 11 48   0.2925  1.0586    96.8    67.3    20.9
...
2022 01 15    00 28 04.9 +61 34 36   0.3930  1.1199    99.8    59.9    21.4

                      (Last issue was M.P.E.C. 2021-X231)                       

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-Y01




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