[Iaude] MPEC S73: 2017 SJ2 [a=2.50,e=0.56,i=6.6,H=23.7]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Tue Sep 19 22:29:16 EDT 2017


M.P.E.C. 2017-S73                                Issued 2017 Sept. 20, 02:25 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 SJ2
 
Observations:
     K17S02J* C2017 09 17.34443 22 51 44.189-33 02 35.11         20.4 wLES073F51
     K17S02J  C2017 09 17.35427 22 51 47.005-33 01 31.85         21.4 wLES073F51
     K17S02J  C2017 09 17.36409 22 51 49.828-33 00 29.26         20.5 wLES073F51
     K17S02J |C2017 09 18.21710 22 56 12.79 -31 27 36.4          20.6 VuES073807
     K17S02J |C2017 09 18.22242 22 56 14.27 -31 27 01.9          20.9 VuES073807
     K17S02J |C2017 09 18.22758 22 56 15.71 -31 26 27.6          20.8 VuES073807
     K17S02J  C2017 09 18.25185 22 56 25.55 -31 24 52.2          20.8 VqES073I52
     K17S02J  C2017 09 18.25362 22 56 25.98 -31 24 40.5                qES073I52
     K17S02J  C2017 09 18.25614 22 56 26.67 -31 24 24.3                qES073I52
     K17S02J _C2017 09 18.41312322 57 13.305-31 07 20.95         20.5 GUES073568
     K17S02J _C2017 09 18.41406822 57 13.556-31 07 14.98         20.8 GUES073568
     K17S02J _C2017 09 18.41501022 57 13.807-31 07 08.79         20.8 GUES073568
     K17S02J KC2017 09 19.27147 23 01 27.55 -29 35 07.3                oES073691
     K17S02J KC2017 09 19.27948 23 01 29.58 -29 34 15.0                oES073691
     K17S02J KC2017 09 19.28748 23 01 31.67 -29 33 23.3                oES073691
     K17S02J  C2017 09 19.29309 23 01 32.99 -29 32 47.1          19.7 RoES073926
     K17S02J  C2017 09 19.29727 23 01 34.11 -29 32 20.3          19.6 RoES073926
     K17S02J  C2017 09 19.30144 23 01 35.18 -29 31 53.3          19.9 RoES073926
 
Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, C. Crowder.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak.  Observer T. H. Bressi.  0.9-m f/3
    reflector + CCD.
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 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.  1.0-m reflector + CCD.
 
Orbital elements:
2017 SJ2                                                 Earth MOID = 0.1141 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M   0.69700              (2000.0)            P               Q
n   0.24983712     Peri.  318.96791     +0.90343958     +0.42758598
a   2.4966907      Node    15.80278     -0.35745722     +0.79133990
e   0.5603699      Incl.    6.55736     -0.23668812     +0.43697984
P   3.95           H   23.7           G   0.15           U   7
Residuals in seconds of arc
170917 F51  0.2+  0.1-    170918 I52  0.2+  0.1+    170919 691  1.1+  0.4-
170917 F51  0.0   0.2+    170918 I52  0.5-  0.4+    170919 691  0.2+  0.2+
170917 F51  0.0   0.2-    170918 I52  0.6-  0.4+    170919 691  0.2+  0.3+
170918 807  0.1-  0.2-    170918 568  0.0   0.2+    170919 926  0.9-  0.1-
170918 807  0.1-  0.5-    170918 568  0.1-  0.1+    170919 926  0.6-  0.3-
170918 807  0.0   0.1+    170918 568  0.2-  0.1+    170919 926  0.8-  0.3-

Ephemeris:
2017 SJ2                 a,e,i = 2.50, 0.56, 7                   q = 1.0976
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 21    19 08 05.0 -61 13 49   0.1624  1.1062   121.9    50.9    21.9
...
2017 09 05    21 23 59.6 -52 25 28   0.1314  1.0986   130.8    44.0    21.2
...
2017 09 13    22 26 00.3 -40 40 55   0.1262  1.1071   141.0    34.9    20.9
...
2017 09 19    23 00 08.1 -30 03 23   0.1304  1.1191   149.6    27.0    20.7
2017 09 20    23 04 53.9 -28 16 12   0.1319  1.1215   151.0    25.8    20.7
2017 09 21    23 09 25.7 -26 29 59   0.1336  1.1241   152.3    24.5    20.7
...
2017 09 27    23 32 21.2 -16 32 12   0.1480  1.1419   159.2    18.2    20.8
...
2017 10 05    23 54 25.5 -05 51 56   0.1779  1.1721   164.0    13.6    21.1
...
2017 10 20    00 21 24.4 +06 23 32   0.2609  1.2449   160.5    15.4    22.1

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S73




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