[Iaude] MPEC F28: 2009 SK104 [a=2.76,e=0.62,i=4.2,H=19.2]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Mar 18 07:37:17 EDT 2018


M.P.E.C. 2018-F28                                Issued 2018 Mar. 18, 11:34 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


                                  2009 SK104
 
                          Revision to MPEC 2009-S111
 
Additional Observations:
     K09SA4K  C2018 03 17.35238 12 21 03.58 -09 46 33.9          19.3 GUEF028703
     K09SA4K  C2018 03 17.35766 12 21 03.29 -09 46 37.6          19.0 GUEF028703
     K09SA4K  C2018 03 17.36821 12 21 02.86 -09 46 44.0          19.1 GUEF028703
     K09SA4K  C2018 03 17.43828 12 21 00.13 -09 47 28.2          18.4 GUEF028I52
     K09SA4K  C2018 03 17.44104 12 21 00.00 -09 47 30.3          18.7 GUEF028I52
     K09SA4K  C2018 03 17.44389 12 20 59.90 -09 47 32.1          18.8 GUEF028I52
     K09SA4K  C2018 03 17.44696 12 20 59.78 -09 47 34.0          18.5 GUEF028I52
     K09SA4K KC2018 03 17.53891 12 20 57.49 -09 48 10.4          19.1 RUEF028474
     K09SA4K KC2018 03 17.54102 12 20 57.42 -09 48 11.6          19.3 RUEF028474
     K09SA4K KC2018 03 17.54313 12 20 57.33 -09 48 13.0          19.6 RUEF028474
     K09SA4K KC2018 03 17.54524 12 20 57.25 -09 48 14.2          18.8 RUEF028474
     K09SA4K |C2018 03 18.17711 12 20 35.88 -09 55 05.1          18.6 GUEF028807
     K09SA4K |C2018 03 18.17970 12 20 35.75 -09 55 06.4          18.9 GUEF028807
     K09SA4K |C2018 03 18.18218 12 20 35.64 -09 55 08.0          18.9 GUEF028807
     K09SA4K  C2018 03 18.26736 12 20 32.81 -09 56 22.3          18.0 GUEF028I52
     K09SA4K  C2018 03 18.27153 12 20 32.63 -09 56 25.1          18.3 GUEF028I52
     K09SA4K  C2018 03 18.27714 12 20 32.40 -09 56 28.6          18.6 GUEF028I52
 
Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
703 Catalina Sky Survey.  Observers B. M. Africano, G. J. Leonard.  Measurers
    B. M. Africano, E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  0.68-m Schmidt + 10K CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers B. M. Africano,
    G. J. Leonard, R. A. Kowalski.  Measurers B. M. Africano,
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.
    1.0-m reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
180317 703   75-   20+    180318 I52   77-   20+    MPO164378    +36 day
 
Orbital elements:
2009 SK104                                               Earth MOID = 0.0807 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 343.91391              (2000.0)            P               Q
n   0.21546579     Peri.  285.94791     -0.27149131     +0.96168532
a   2.7556063      Node   328.21994     -0.85301989     -0.25878258
e   0.6174860      Incl.    4.15170     -0.44570118     -0.09051472
P   4.57           H   19.2           G   0.15           U   4
Residuals in seconds of arc
090925 G96  0.3+  0.2-    090926 G96  0.2-  0.0     180317 703  0.2-  0.3-
090925 G96  0.4+  0.1+    090926 G96  0.1-  0.1-    180317 703  0.3-  0.1+
090925 G96  0.3-  0.1+    090926 G96  0.5+  0.3+    180317 I52  0.1+  0.2+
090925 G96  0.5+  0.9+    090926 G96  0.1+  0.0     180317 I52  0.3-  0.1-
090925 G96  0.3-  0.3-    090927 G96  0.0   0.1-    180317 I52  0.1-  0.1-
090925 G96  0.3-  0.1+    090927 G96  0.4+  0.2+    180317 I52  0.1-  0.1-
090925 G96  0.0   0.4-    090927 G96  0.8+  0.0     180317 474  0.1-  0.1-
090925 H01  0.1+  0.1+    090927 G96  0.3-  0.2-    180317 474  0.1+  0.0
090925 H01  0.3+  0.0     090928 291  0.1-  0.0     180317 474  0.0   0.0
090925 H01  0.2+  0.1+    090928 291  1.0+  0.6-    180317 474  0.1+  0.2+
090926 291  0.7-  0.2-    090928 291 (0.2+  1.9-)   180318 807  0.3+  0.3-
090926 291  0.2+  0.0     090930 291  0.2+  0.8+    180318 807  0.0   0.1+
090926 291  0.5-  0.3-    090930 291  1.2-  0.8+    180318 807  0.1-  0.1+
090926 G96  0.2+  0.1+    090930 291  0.3-  0.7-    180318 I52  0.1-  0.1+
090926 G96  0.1-  0.0     091009 291  0.3+  0.0     180318 I52  0.2-  0.0
090926 G96  0.1-  0.2-    091009 291  0.0   0.1-    180318 I52  0.1-  0.2+
090926 G96  0.1-  0.0     180317 703  1.0+  0.1+

Ephemeris:
2009 SK104               a,e,i = 2.76, 0.62, 4                   q = 1.0541
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 16    12 22 08.6 -05 07 06   0.8097  1.6894   139.8    22.2    20.9
...
2018 03 03    12 25 09.0 -07 23 43   0.6184  1.5679   153.1    16.6    20.0
...
2018 03 11    12 23 48.3 -08 40 59   0.5307  1.5038   160.4    12.8    19.5
...
2018 03 17    12 21 15.2 -09 42 36   0.4716  1.4565   165.7     9.7    19.0
2018 03 18    12 20 41.7 -09 53 17   0.4623  1.4487   166.5     9.2    18.9
2018 03 19    12 20 06.0 -10 04 05   0.4532  1.4409   167.2     8.8    18.9
...
2018 03 25    12 15 45.9 -11 12 21   0.4017  1.3948   170.4     6.8    18.5
...
2018 04 02    12 08 06.5 -12 55 37   0.3416  1.3353   167.9     9.0    18.1
...
2018 04 17    11 49 36.2 -17 11 06   0.2515  1.2324   152.6    22.0    17.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F28



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