[Iaude] MPEC B134: 2017 BL31 [a=2.44,e=0.85,i=24.9,H=18.7]

mpec at si.edu mpec at si.edu
Mon Jan 30 09:49:38 EST 2017


M.P.E.C. 2017-B134                               Issued 2017 Jan. 30, 14:45 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 BL31
 
Observations:
     K17B31L* C2017 01 26.32775 04 46 43.975+18 05 41.00         21.5 wLEB134F51
     K17B31L  C2017 01 26.34078 04 46 42.279+18 05 47.25         21.6 wLEB134F51
     K17B31L  C2017 01 26.35375 04 46 40.622+18 05 53.33         21.8 wLEB134F51
     K17B31L  C2017 01 26.36664 04 46 38.934+18 05 59.61         21.5 wLEB134F51
     K17B31L KC2017 01 27.28091 04 44 44.33 +18 13 18.0          22.5 RoEB134291
     K17B31L KC2017 01 27.28662 04 44 43.64 +18 13 21.3                oEB134291
     K17B31L _C2017 01 27.34472504 44 36.576+18 13 51.36         21.0 GUEB134568
     K17B31L _C2017 01 27.34594204 44 36.422+18 13 51.92         21.1 GUEB134568
     K17B31L _C2017 01 27.34716004 44 36.264+18 13 52.53         20.9 GUEB134568
     K17B31L  C2017 01 28.12208 04 43 01.38 +18 20 05.8          22.3 RoEB134926
     K17B31L  C2017 01 28.13286 04 43 00.05 +18 20 11.6          22.7 RoEB134926
     K17B31L  C2017 01 28.14361 04 42 58.71 +18 20 16.7          22.4 RoEB134926
     K17B31L  C2017 01 30.23495204 38 50.05 +18 37 13.0          22.0 GUEB134H01
     K17B31L  C2017 01 30.24248504 38 49.15 +18 37 16.7          22.0 GUEB134H01
     K17B31L  C2017 01 30.25138604 38 48.10 +18 37 20.9          21.3 GUEB134H01
     K17B31L  C2017 01 30.25522904 38 47.64 +18 37 22.7          21.5 GUEB134H01
 
Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + 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 B. Gibson, T. Goggia, S. Kahale,
    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.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
 
Orbital elements:
2017 BL31                                                Earth MOID = 0.1423 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 338.55942              (2000.0)            P               Q
n   0.25783444     Peri.  132.41045     -0.49583903     +0.76577376
a   2.4447931      Node   103.35497     -0.86760827     -0.41651171
e   0.8507622      Incl.   24.89374     -0.03741059     -0.49000871
P   3.82           H   18.7           G   0.15           U   8
Residuals in seconds of arc
170126 F51  0.0   0.1-    170127 568  0.3+  0.0     170130 H01  0.2+  0.1-
170126 F51  0.0   0.0     170127 568  0.3+  0.1-    170130 H01  0.1+  0.0
170126 F51  0.3+  0.1-    170127 568  0.2+  0.0     170130 H01  0.1+  0.1-
170126 F51  0.0   0.1+    170128 926  0.1-  0.2-    170130 H01  0.0   0.1-
170127 291  0.2-  0.5-    170128 926  0.1+  0.3+
170127 291  0.2+  0.1+    170128 926  0.1+  0.2+

Ephemeris:
2017 BL31                a,e,i = 2.44, 0.85, 25                  q = 0.3649
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 31    05 50 33.2 +14 48 27   1.1824  2.1484   165.4     6.6    21.2
...
2017 01 15    05 12 56.8 +16 36 41   1.1069  1.9851   143.4    17.2    21.3
...
2017 01 23    04 53 59.1 +17 39 09   1.0951  1.8936   131.1    23.1    21.4
...
2017 01 29    04 41 15.6 +18 27 13   1.0959  1.8227   122.2    27.2    21.4
2017 01 30    04 39 17.7 +18 35 20   1.0967  1.8107   120.8    27.9    21.4
2017 01 31    04 37 22.7 +18 43 30   1.0977  1.7986   119.3    28.5    21.4
...
2017 02 06    04 26 55.9 +19 33 11   1.1059  1.7250   111.0    32.3    21.5
...
2017 02 14    04 15 54.2 +20 42 06   1.1208  1.6235   100.5    36.7    21.5
...
2017 03 01    04 03 50.7 +23 03 12   1.1452  1.4215    83.1    43.8    21.4

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-B134




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