[Iaude] MPEC S237: 2017 SB20 [a=0.98,e=0.22,i=5.5,H=25.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Sep 30 14:15:18 EDT 2017


M.P.E.C. 2017-S237                               Issued 2017 Sept. 30, 18:12 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 http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 SB20
 
Observations:
     K17S20B  C2017 09 18.54579 02 44 57.925+01 33 39.15         22.1 wLES237F51
     K17S20B  C2017 09 18.55780 02 44 59.024+01 34 00.35         22.3 wLES237F51
     K17S20B  C2017 09 18.56982 02 45 00.135+01 34 21.67         22.8 wLES237F51
     K17S20B* C2017 09 27.37617 03 09 45.16 +08 17 33.9          19.6 VqES237G96
     K17S20B  C2017 09 27.38145 03 09 46.21 +08 17 57.1          19.4 VqES237G96
     K17S20B  C2017 09 27.38676 03 09 47.19 +08 18 19.6          19.4 VqES237G96
     K17S20B  C2017 09 27.39214 03 09 48.18 +08 18 42.6          19.9 VqES237G96
     K17S20B  C2017 09 27.44768 03 09 58.76 +08 22 42.6          20.1 VqES237G96
     K17S20B  C2017 09 27.44967 03 09 59.14 +08 22 51.2          20.2 VqES237G96
     K17S20B  C2017 09 27.45142 03 09 59.47 +08 22 57.9          19.9 VqES237G96
     K17S20B  C2017 09 28.29797 03 13 42.25 +09 27 19.7          21.3 VqES237G96
     K17S20B  C2017 09 28.30060 03 13 42.89 +09 27 32.8          19.7 VqES237G96
     K17S20B  C2017 09 28.30315 03 13 43.42 +09 27 46.7          20.0 VqES237G96
     K17S20B  C2017 09 28.30357 03 13 43.54 +09 27 47.8          20.3 VqES237G96
     K17S20B  C2017 09 28.48560 03 14 23.31 +09 42 42.2          20.8 RoES237926
     K17S20B  C2017 09 28.49074 03 14 24.44 +09 43 07.6          20.8 RoES237926
     K17S20B  C2017 09 28.49689 03 14 25.81 +09 43 38.4                oES237926
     K17S20B KC2017 09 29.28263503 18 19.85 +10 51 32.7          19.9 VuES237H21
     K17S20B KC2017 09 29.28660503 18 20.83 +10 51 54.7          19.8 VuES237H21
     K17S20B KC2017 09 29.29047903 18 21.82 +10 52 16.2          19.7 VuES237H21
     K17S20B  C2017 09 29.50255 03 19 18.75 +11 12 18.8          20.8 RoES237926
     K17S20B  C2017 09 29.50651 03 19 19.79 +11 12 40.8          20.6 RoES237926
     K17S20B  C2017 09 29.51048 03 19 20.84 +11 13 03.5          20.7 RoES237926
     K17S20B KC2017 09 30.06372 03 22 26.38 +12 06 49.3                UES237104
     K17S20B KC2017 09 30.07032 03 22 28.27 +12 07 29.6          20.4  UES237104
     K17S20B KC2017 09 30.07769 03 22 30.38 +12 08 14.8          20.7  UES237104
     K17S20B  C2017 09 30.28785 03 23 49.67 +12 30 22.7                qES237G96
     K17S20B  C2017 09 30.28825 03 23 49.74 +12 30 25.4                qES237G96
     K17S20B  C2017 09 30.28867 03 23 49.90 +12 30 28.4                qES237G96
     K17S20B  C2017 09 30.28908 03 23 49.98 +12 30 30.8          19.0 VqES237G96
     K17S20B  C2017 09 30.41432 03 24 27.05 +12 43 59.6          20.1 VqES237I52
     K17S20B  C2017 09 30.41528 03 24 27.34 +12 44 05.8          20.7 VqES237I52
     K17S20B  C2017 09 30.41626 03 24 27.62 +12 44 12.0          20.5 VqES237I52
     K17S20B  C2017 09 30.41724 03 24 27.89 +12 44 18.6          20.5 VqES237I52
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
    Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observers R. G. Matheny, J. A. Johnson.  Measurers
    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. G. Matheny, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
    Measurers 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. G. Matheny,
    R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
 
Orbital elements:
2017 SB20                                                Earth MOID = 0.0110 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 238.04438              (2000.0)            P               Q
n   1.02289276     Peri.  115.61034     -0.60890486     -0.79299706
a   0.9755495      Node    11.96155     +0.68929636     -0.54127843
e   0.2170362      Incl.    5.47150     +0.39256259     -0.27959493
P   0.96           H   25.0           G   0.15           U   7
Residuals in seconds of arc
170918 F51  0.3-  0.3-    170928 G96  0.1-  0.9+    170930 104  0.1-  0.3-
170918 F51  0.1-  0.0     170928 G96  0.2+  0.1-    170930 104  0.2+  0.3-
170918 F51  0.3+  0.3+    170928 926  0.0   0.5-    170930 G96  0.4+  0.2-
170927 G96  0.2-  0.0     170928 926  0.1-  0.2-    170930 G96  0.3-  0.1-
170927 G96  0.4+  0.4+    170928 926  0.1-  0.6+    170930 G96  0.1+  0.2+
170927 G96  0.0   0.0     170929 H21  0.2-  0.1+    170930 G96  0.5-  0.1-
170927 G96  0.5-  0.3-    170929 H21  0.7-  0.0     170930 I52  0.3+  0.0
170927 G96  0.3+  0.2+    170929 H21  0.6-  0.0     170930 I52  0.5+  0.0
170927 G96  0.3+  0.2+    170929 926  0.4-  0.2+    170930 I52  0.4+  0.1-
170927 G96  0.2+  0.6-    170929 926  0.2-  0.1+    170930 I52  0.2+  0.2+
170928 G96  0.0   0.7-    170929 926  0.2+  0.7+
170928 G96  0.6+  0.5-    170930 104  0.3-  0.1-

Ephemeris:
2017 SB20                a,e,i = 0.98, 0.22, 5                   q = 0.7638
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 31    02 13 14.3 -03 34 15   0.1801  1.1249   126.0    46.5    23.3
...
2017 09 15    02 38 00.1 +00 04 17   0.1123  1.0856   133.2    42.5    22.1
...
2017 09 23    02 55 27.4 +04 13 09   0.07850 1.0613   135.9    41.1    21.2
...
2017 09 29    03 16 51.7 +10 27 26   0.05474 1.0417   135.7    42.2    20.4
2017 09 30    03 22 03.5 +12 01 48   0.05099 1.0383   135.2    42.8    20.3
2017 10 01    03 28 03.2 +13 50 21   0.04731 1.0349   134.4    43.7    20.1
...
2017 10 07    04 41 33.2 +32 56 53   0.02835 1.0138   119.8    58.9    19.4
...
2017 10 15    11 15 12.4 +47 18 56   0.02805 0.9845    62.2   116.4    21.8
...
2017 10 30    13 40 32.3 +20 09 57   0.08232 0.9268    35.0   142.1    26.5

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S237




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