[Iaude] MPEC A37: 2017 AL4 [a=1.45,e=0.31,i=13.2,H=23.0]

[mpec at si.edu]

M.P.E.C. 2017-A37                                Issued 2017 Jan. 6, 23:48 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 AL4
 
Observations:
     K17A04L* C2017 01 03.51941 09 04 44.881-04 40 11.93         22.0 wLEA037F51
     K17A04L  C2017 01 03.53014 09 04 43.078-04 40 32.10         21.9 wLEA037F51
     K17A04L  C2017 01 03.54083 09 04 41.300-04 40 52.45         22.0 wLEA037F51
     K17A04L  C2017 01 03.55153 09 04 39.530-04 41 12.98         22.0 wLEA037F51
     K17A04L _C2017 01 04.54957209 02 06.021-05 12 03.40         21.8 GUEA037568
     K17A04L _C2017 01 04.55084009 02 05.810-05 12 05.68         21.8 GUEA037568
     K17A04L _C2017 01 04.55210809 02 05.599-05 12 07.97         21.6 GUEA037568
     K17A04L |C2017 01 06.19857 08 57 52.45 -05 59 31.7          21.6 VuEA037807
     K17A04L |C2017 01 06.20552 08 57 51.26 -05 59 43.8          22.1 VuEA037807
     K17A04L |C2017 01 06.21245 08 57 50.14 -05 59 55.2          21.8 VuEA037807
 
Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + 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.
 
Orbital elements:
2017 AL4                                                 Earth MOID = 0.0889 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M  65.49635              (2000.0)            P               Q
n   0.56384021     Peri.  127.93460     +0.75945558     -0.60941146
a   1.4511045      Node   270.78879     +0.50223761     +0.77168594
e   0.3107151      Incl.   13.16266     +0.41350285     +0.18198481
P   1.75           H   23.0           G   0.15           U   6
Residuals in seconds of arc
170103 F51  0.3+  0.1-    170104 568  0.0   0.1-    170106 807  0.2-  0.3-
170103 F51  0.0   0.1+    170104 568  0.1+  0.1-    170106 807  0.2+  0.0
170103 F51  0.0   0.0     170104 568  0.1+  0.1-
170103 F51  0.1+  0.2-    170106 807  0.4+  0.1+

Ephemeris:
2017 AL4                 a,e,i = 1.45, 0.31, 13                  q = 1.0002
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 07    09 58 53.3 +16 41 32   0.2373  1.0859   109.0    59.1    22.2
...
2016 12 22    09 34 13.5 +03 35 40   0.2467  1.1432   125.0    44.8    22.0
...
2016 12 30    09 16 04.1 -02 03 10   0.2584  1.1770   133.8    37.1    21.9
...
2017 01 05    09 00 57.0 -05 25 16   0.2714  1.2035   139.8    31.8    21.9
2017 01 06    08 58 22.4 -05 54 10   0.2739  1.2080   140.8    31.0    21.9
2017 01 07    08 55 47.5 -06 21 39   0.2766  1.2125   141.7    30.2    21.9
...
2017 01 13    08 40 27.2 -08 37 00   0.2952  1.2398   146.2    26.2    22.0
...
2017 01 21    08 21 31.0 -10 22 01   0.3269  1.2768   149.6    23.0    22.2
...
2017 02 05    07 55 46.4 -10 36 01   0.4080  1.3467   147.0    23.5    22.8

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-A37