[Iaude] MPEC D35: 2017 FE90 [a=2.03,e=0.78,i=25.8,H=19.5]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2018-D35                                Issued 2018 Feb. 21, 12:00 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 https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 FE90
 
                          Revision to MPEC 2017-F122
 
Additional Observations:
     K17F90E KC2018 01 20.35403907 52 45.997+63 22 11.51         23.82GUED035T12
     K17F90E  C2018 02 13.34440906 54 08.859+59 11 20.72         23.82GUED035T12
     K17F90E  C2018 02 13.35533606 54 07.951+59 11 11.68         24.34GUED035T12
     K17F90E  C2018 02 13.36785506 54 06.935+59 11 01.35         24.03GUED035T12
 
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers Y. Ramanjooloo,
    D. Hung.  Measurer D. J. Tholen.  2.24-m f/10.1 reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
180120 T12 12.9-  3.2-    180213 T12 10.1-  5.4-    MPO413698   -0.0010 day
 
Orbital elements:
2017 FE90                                                Earth MOID = 0.1569 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  78.71056              (2000.0)            P               Q
n   0.34187681     Peri.  308.34492     +0.78659081     +0.60642923
a   2.0256121      Node    15.50377     -0.33650980     +0.57888445
e   0.7821720      Incl.   25.78355     -0.51772198     +0.54510217
P   2.88           H   19.5           G   0.15           U   3
Residuals in seconds of arc
170321 F51  0.2+  0.1+    170325 291  0.2+  0.4+    170423 291  0.4-  0.2+
170321 F51  0.0   0.0     170325 926  0.0   0.3+    170423 291  0.1-  0.2+
170321 F51  0.1-  0.1+    170325 926  0.1-  0.3-    170503 H21  0.4+  0.5+
170322 568  0.1-  0.1-    170325 926  0.0   0.1+    170503 H21  0.6+  0.3+
170322 568  0.1-  0.1-    170405 I52  0.1-  0.3-    170503 H21  0.6+  0.4+
170322 568  0.1-  0.1-    170405 I52  2.4+  2.4-    170524 691  0.1+  0.3+
170324 691  0.9-  0.4+    170420 F51  0.3-  0.1-    170524 691  0.3+  0.1-
170324 691  0.7+  0.3-    170420 F51  0.1-  0.1+    180120 T12  0.0   0.0
170324 691  0.4+  0.2-    170420 F51  0.2-  0.2-    180213 T12  0.0   0.1+
170325 291  0.3+  0.7+    170420 F51  0.1-  0.1-    180213 T12  0.0   0.0
170325 291  0.2-  0.2+    170423 291  0.2-  0.4-    180213 T12  0.0   0.0

Ephemeris:
2017 FE90                a,e,i = 2.03, 0.78, 26                  q = 0.4412
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 01 22    07 47 00.9 +63 13 24   1.5440  2.3557   136.3    16.8    23.2
...
2018 02 06    07 06 10.4 +60 47 48   1.7268  2.4711   129.2    18.0    23.6
...
2018 02 14    06 53 18.7 +59 02 21   1.8433  2.5295   123.8    18.9    23.8
...
2018 02 20    06 47 14.6 +57 39 24   1.9380  2.5720   119.4    19.6    24.0
2018 02 21    06 46 29.7 +57 25 31   1.9543  2.5790   118.7    19.7    24.0
2018 02 22    06 45 49.0 +57 11 39   1.9707  2.5859   117.9    19.8    24.0
...
2018 02 28    06 43 05.7 +55 49 16   2.0721  2.6269   113.3    20.3    24.2
...
2018 03 08    06 42 32.0 +54 03 18   2.2133  2.6799   107.2    20.7    24.4
...
2018 03 23    06 48 26.7 +51 01 14   2.4909  2.7743    95.8    20.9    24.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-D35