[Iaude] MPEC S87: 2017 FR90 [a=2.36,e=0.83,i=26.0,H=17.2]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Sep 20 10:31:20 EDT 2017


M.P.E.C. 2017-S87                                Issued 2017 Sept. 20, 14:27 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 FR90
 
                          Revision to MPEC 2017-F140
 
Additional Observations:
     K17F90R  C2017 09 19.49670 08 57 24.77 +34 20 11.5          20.7 RoES087926
     K17F90R  C2017 09 19.50100 08 57 25.16 +34 20 11.0          21.3 RoES087926
     K17F90R  C2017 09 20.49540 08 59 00.56 +34 16 49.3          20.8 RoES087926
     K17F90R  C2017 09 20.50027 08 59 01.02 +34 16 48.2          20.5 RoES087926
     K17F90R  C2017 09 20.50515 08 59 01.46 +34 16 47.2          20.7 RoES087926
 
Observer details:
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170919 926  1.4+  3.6+    170920 926  1.0+  3.7+    MPO405698   -0.00058 day
 
Orbital elements:
2017 FR90                                                Earth MOID = 0.4050 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M  20.84458              (2000.0)            P               Q
n   0.27190972     Peri.  353.22988     +0.79822251     +0.55900909
a   2.3596788      Node   329.15484     -0.53010411     +0.47500555
e   0.8292274      Incl.   25.95348     -0.28606022     +0.67961649
P   3.62           H   17.2           G   0.15           U   3
Residuals in seconds of arc
170323 F51  0.0   0.1+    170325 E23  0.6+  0.9-    170401 I47  0.1-  0.1+
170323 F51  0.0   0.1+    170325 E23  0.3-  0.3+    170401 I47  0.1-  0.1+
170323 F51  0.0   0.1+    170325 E23  0.4+  0.1+    170404 F51  0.1+  0.1+
170324 807  0.2+  0.1-    170325 E23  0.1-  0.3-    170404 F51  0.1-  0.0
170324 807  0.0   0.2-    170327 807  0.1+  0.0     170404 F51  0.0   0.1+
170324 807  0.2+  0.1-    170327 807  0.1+  0.0     170411 W88  0.1+  0.0
170324 807  0.2+  0.0     170327 807  0.1-  0.2+    170411 W88  0.0   0.5-
170324 807  0.0   0.0     170327 807  0.2+  0.2-    170412 W88  0.2-  0.2-
170324 568  0.0   0.0     170327 807  0.0   0.1-    170412 W88  0.0   0.2+
170324 568  0.0   0.0     170327 I47  0.3+  0.3+    170412 W88  0.4-  0.1-
170324 568  0.0   0.1-    170327 I47  0.3+  0.2-    170422 T12  0.0   0.3+
170324 568  0.1+  0.1-    170327 I47  0.3+  0.1+    170422 T12  0.0   0.3+
170324 568  0.1+  0.1-    170328 W88  0.2+  0.2+    170504 474  0.2+  0.1-
170324 568  0.0   0.0     170328 W88  0.5+  0.1+    170504 474  0.2+  0.4+
170325 I47  0.1-  0.1+    170329 W88  0.1-  0.1-    170504 474  0.2+  0.2-
170325 I47  0.1+  0.2+    170329 W88  0.1-  0.4-    170504 474  0.1-  0.3+
170325 I47  0.3+  0.1+    170331 W88  0.1-  0.2-    170919 926  0.2+  0.1-
170325 807  0.1+  0.1-    170331 W88  0.9-  0.4-    170919 926  0.1-  0.2+
170325 807  0.0   0.1-    170331 Y00  0.3-  0.3-    170920 926  0.0   0.2+
170325 807  0.1+  0.0     170331 Y00  0.4-  0.4+    170920 926  0.0   0.0
170325 807  0.1-  0.1-    170331 Y00  0.5-  0.2-    170920 926  0.3-  0.1-
170325 807  0.2-  0.2-    170401 I47  0.1+  0.2-

Ephemeris:
2017 FR90                a,e,i = 2.36, 0.83, 26                  q = 0.4030
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 21    07 57 26.1 +36 17 19   1.9492  1.2878    36.6    28.0    20.4
...
2017 09 05    08 31 12.5 +35 16 04   2.0535  1.4930    43.5    27.7    20.9
...
2017 09 13    08 46 22.6 +34 43 55   2.0887  1.5962    47.7    27.8    21.1
...
2017 09 19    08 56 36.2 +34 21 55   2.1062  1.6709    51.2    27.9    21.2
2017 09 20    08 58 12.9 +34 18 30   2.1084  1.6832    51.8    28.0    21.2
2017 09 21    08 59 48.0 +34 15 10   2.1104  1.6954    52.4    28.0    21.2
...
2017 09 27    09 08 46.4 +33 56 58   2.1182  1.7673    56.1    28.1    21.3
...
2017 10 05    09 19 19.2 +33 38 23   2.1180  1.8601    61.4    28.2    21.4
...
2017 10 20    09 34 43.5 +33 25 35   2.0885  2.0253    72.5    28.0    21.6

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S87




More information about the Iaude mailing list