[Iaude] MPEC T05: 2017 SW20 [a=2.00,e=0.80,i=19.9,H=19.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Oct 1 10:35:20 EDT 2017


M.P.E.C. 2017-T05                                Issued 2017 Oct. 1, 14:30 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 SW20
 
Observations:
     K17S20W* C2017 09 26.60264 04 17 04.756-23 29 49.06         21.0 wLET005F51
     K17S20W  C2017 09 26.61249 04 17 02.409-23 29 56.28         21.1 wLET005F51
     K17S20W  C2017 09 26.62231 04 17 00.066-23 30 03.32         21.1 wLET005F51
     K17S20W KC2017 09 27.08909804 15 11.65 -23 35 24.1          20.5 GUET005K91
     K17S20W KC2017 09 27.09409704 15 10.45 -23 35 27.7          20.6 GUET005K91
     K17S20W KC2017 09 27.09909604 15 09.27 -23 35 31.2          20.5 GUET005K91
     K17S20W |C2017 09 27.29337 04 14 24.24 -23 37 47.0          20.5 VuET005807
     K17S20W |C2017 09 27.29755 04 14 23.25 -23 37 50.0          20.6 VuET005807
     K17S20W |C2017 09 27.30183 04 14 22.22 -23 37 52.9          20.5 VuET005807
     K17S20W  C2017 09 27.55191 04 13 23.739-23 40 55.54         20.7 wLET005F51
     K17S20W  C2017 09 27.57255 04 13 18.778-23 41 09.84         21.0 wLET005F51
     K17S20W  C2017 09 27.58286 04 13 16.310-23 41 16.88         21.0 wLET005F51
     K17S20W  C2017 09 28.46779 04 09 48.61 -23 51 02.9                qET005I52
     K17S20W  C2017 09 28.46903 04 09 48.26 -23 51 03.2                qET005I52
     K17S20W  C2017 09 28.47311 04 09 47.29 -23 51 06.5          21.0 VqET005I52
     K17S20W  C2017 09 28.47435 04 09 47.01 -23 51 05.6                qET005I52
     K17S20W  C2017 09 30.49010 04 01 50.49 -24 10 56.3          20.8 RoET005926
     K17S20W  C2017 09 30.49756 04 01 48.68 -24 11 00.2          20.6 RoET005926
     K17S20W  C2017 09 30.50530 04 01 46.81 -24 11 04.5          20.5 RoET005926
     K17S20W  C2017 10 01.39106 03 58 16.76 -24 18 45.4          20.5 RoET005926
     K17S20W  C2017 10 01.39546 03 58 15.71 -24 18 46.9          20.7 RoET005926
     K17S20W  C2017 10 01.39987 03 58 14.62 -24 18 49.1          20.8 RoET005926
 
Observer details:
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + 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.
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.
K91 Sutherland-LCO A.  Observers T. Lister, S. Greenstreet, E. Gomez.
    Measurer T. Lister.  1.0-m f/8 Ritchey-Chretien + CCD.
 
Orbital elements:
2017 SW20                                                Earth MOID = 0.2892 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M  17.51164              (2000.0)            P               Q
n   0.34840093     Peri.  167.35911     -0.30679719     +0.88950343
a   2.0002449      Node    83.99000     -0.90019535     -0.15565683
e   0.7960140      Incl.   19.90642     -0.30906927     -0.42959819
P   2.83           H   19.6           G   0.15           U   8
Residuals in seconds of arc
170926 F51  0.0   0.1-    170927 807  0.2+  0.6-    170930 926  0.5+  0.1+
170926 F51  0.1+  0.2-    170927 F51  0.4+  0.1-    170930 926  0.5+  0.2+
170926 F51  0.0   0.2-    170927 F51  0.2+  0.2-    170930 926  0.6+  0.0
170927 K91  0.3+  0.4-    170927 F51  0.3+  0.2-    171001 926  0.2-  0.9-
170927 K91  0.2+  0.5-    170928 I52  0.1-  1.0-    171001 926  0.1+  0.2-
170927 K91  0.4+  0.5-    170928 I52  0.8-  0.5-    171001 926  0.2-  0.2-
170927 807  0.2+  0.7-    170928 I52  0.6-  1.2-
170927 807  0.3+  0.7-    170928 I52  0.4-  0.5+

Ephemeris:
2017 SW20                a,e,i = 2.00, 0.80, 20                  q = 0.4080
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 09 01    05 44 35.6 -15 34 27   0.5549  1.0373    77.1    71.5    20.9
...
2017 09 16    04 56 06.4 -20 46 21   0.5908  1.2512   100.0    52.3    20.9
...
2017 09 24    04 27 03.5 -22 55 52   0.6146  1.3580   111.9    43.3    20.9
...
2017 09 30    04 03 47.1 -24 06 13   0.6383  1.4350   120.5    37.0    20.9
2017 10 01    03 59 49.7 -24 15 15   0.6429  1.4476   121.9    36.0    20.9
2017 10 02    03 55 51.6 -24 23 27   0.6477  1.4601   123.2    35.0    20.9
...
2017 10 08    03 32 03.0 -24 54 35   0.6812  1.5337   130.8    29.5    21.0
...
2017 10 16    03 01 34.5 -24 47 36   0.7399  1.6283   138.8    23.8    21.1
...
2017 10 31    02 14 42.6 -22 31 26   0.8975  1.7951   143.4    19.2    21.6

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-T05




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