"Pseudo-MPEC" for ORX

Created 2017 Sep 20 1:33:30 UT using Find_Orb

Note that this is an early version. Click here for the latest version, with many more observations.

Astrometry:
ORX           C2017 09 07.00000 00 19 24.08 +02 40 36.4                 Synth500
ORX           C2017 09 10.00000 00 20 10.11 +02 42 37.4                 Synth500
ORX          KC2017 09 16.24381400 21 27.26 +02 30 40.1          21.6 G      V03
ORX          KC2017 09 16.25840700 21 25.81 +02 30 35.9          21.1 G      V03
ORX           C2017 09 19.36361 00 21 41.18 +02 00 13.9         x21.1 V      U69
ORX           C2017 09 19.37074 00 21 40.83 +02 00 11.2         x22.3 V      U69
ORX          KC2017 09 19.95823 00 21 57.40 +01 43 19.3          18.0 R      970
ORX          KC2017 09 19.96469 00 21 56.09 +01 43 08.0          18.2 R      970
ORX           C2017 09 20.00000 00 21 44.78 +01 53 16.2                 Synth500

Station data:
(500) Geocentric.
(970) Chelmsford  (N51.744713 E0.495400)  UK.  Observer N. James. 0.28-m f/10
   Schmidt-Cassegrain + CCD.
(U69) iTelescope SRO Observatory, Auberry  (N37.070387 W119.413000)
   US/California. 0.61-m f/6.5 astrograph + CCD.
(V03) Big Water  (N37.083376 W111.668600)  US/Utah.  Observer D. Rankin.
   0.30-m refractor + CCD.

Orbital elements (heliocentric):  ORX
   Perihelion 2017 Dec 10.182199 +/- 0.0224 TT =  4:22:22 (JD 2458097.682199)
Epoch 2017 Sep 19.0 TT = JDT 2458015.5   Earth MOID: 0.0002   Ve: 0.0619
M 279.59027 +/- 0.028               (J2000 ecliptic)          Gray
n   0.97843242 +/- 7.87e-5          Peri.  286.83710 +/- 0.0014
a   1.00488298 +/- 5.39e-5          Node   175.57401 +/- 0.0010
e   0.2258120 +/- 0.000246          Incl.    0.16821 +/- 0.00019
P   1.01/367.93d           H 28.5   G  0.15   U  6.4
q 0.77796831 +/- 0.000208    Q 1.23179765 +/- 0.00031
7 of 9 observations 2017 Sept. 7-20; mean residual 0".452

Orbital elements (geocentric flyby):  ORX
   Perigee 2017 Sep 22.701863 +/- 0.00272 TT = 16:50:41 (JD 2458019.201863)
Epoch 2017 Sep 22.5 TT = JDT 2458019.0                        Gray
q 23635.9096 +/- 54.5               (J2000 equator)
H   28.5  G 0.15                    Peri.  284.46591 +/- 0.055
                                    Node   185.61527 +/- 0.00009
e   3.3069422 +/- 0.0101            Incl.   84.85414 +/- 0.013
7 of 9 observations 2017 Sept. 7-20; mean residual 0".454
Residuals in arcseconds: 
170907 500 .274+ .257+    170916 V03 .855- .831-    170919 970 .619+ .162-
170910 500 .503+ .303+    170919 U69(79.6+ 3.99+)   170919 970 .161+ .109-
170916 V03 .432- .079-    170919 U69(99.2+ 9.74+)   170920 500 .339- .439+

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta   r     elong  mag
---- -- -- --  ------------   ------------  ------ ------ -----  ---
2017 09 19 00  00 21 35.817   +02 12 39.25   .01362 1.0180 170.2 19.8
2017 09 19 01  00 21 36.138   +02 12 03.61   .01347 1.0179 170.2 19.8
2017 09 19 02  00 21 36.461   +02 11 27.12   .01332 1.0177 170.3 19.8
2017 09 19 03  00 21 36.788   +02 10 49.76   .01317 1.0176 170.3 19.7
2017 09 19 04  00 21 37.118   +02 10 11.51   .01301 1.0174 170.4 19.7
2017 09 19 05  00 21 37.451   +02 09 32.33   .01286 1.0172 170.4 19.7
2017 09 19 06  00 21 37.789   +02 08 52.18   .01271 1.0171 170.4 19.7
2017 09 19 07  00 21 38.130   +02 08 11.04   .01256 1.0169 170.5 19.6
2017 09 19 08  00 21 38.475   +02 07 28.86   .01241 1.0168 170.5 19.6
2017 09 19 09  00 21 38.825   +02 06 45.61   .01226 1.0166 170.6 19.6
2017 09 19 10  00 21 39.180   +02 06 01.26   .01210 1.0165 170.6 19.5
2017 09 19 11  00 21 39.539   +02 05 15.75   .01195 1.0163 170.7 19.5
2017 09 19 12  00 21 39.904   +02 04 29.04   .01180 1.0161 170.7 19.5
2017 09 19 13  00 21 40.274   +02 03 41.10   .01165 1.0160 170.7 19.5
2017 09 19 14  00 21 40.649   +02 02 51.86   .01150 1.0158 170.8 19.4
2017 09 19 15  00 21 41.031   +02 02 01.29   .01135 1.0157 170.8 19.4
2017 09 19 16  00 21 41.420   +02 01 09.31   .01119 1.0155 170.9 19.4
2017 09 19 17  00 21 41.815   +02 00 15.89   .01104 1.0153 170.9 19.3
2017 09 19 18  00 21 42.217   +01 59 20.95   .01089 1.0152 171.0 19.3
2017 09 19 19  00 21 42.626   +01 58 24.44   .01074 1.0150 171.0 19.3
2017 09 19 20  00 21 43.044   +01 57 26.29   .01059 1.0149 171.1 19.2
2017 09 19 21  00 21 43.470   +01 56 26.42   .01044 1.0147 171.1 19.2
2017 09 19 22  00 21 43.905   +01 55 24.76   .01029 1.0145 171.1 19.2
2017 09 19 23  00 21 44.349   +01 54 21.24   .01013 1.0144 171.2 19.1
2017 09 20 00  00 21 44.803   +01 53 15.76   .00998 1.0142 171.2 19.1
2017 09 20 01  00 21 45.267   +01 52 08.24   .00983 1.0141 171.3 19.1
2017 09 20 02  00 21 45.742   +01 50 58.59   .00968 1.0139 171.3 19.0
2017 09 20 03  00 21 46.229   +01 49 46.69   .00953 1.0137 171.4 19.0
2017 09 20 04  00 21 46.728   +01 48 32.45   .00938 1.0136 171.4 18.9
2017 09 20 05  00 21 47.240   +01 47 15.74   .00922 1.0134 171.5 18.9
2017 09 20 06  00 21 47.765   +01 45 56.45   .00907 1.0133 171.5 18.9
2017 09 20 07  00 21 48.305   +01 44 34.45   .00892 1.0131 171.6 18.8
2017 09 20 08  00 21 48.861   +01 43 09.58   .00877 1.0129 171.6 18.8
2017 09 20 09  00 21 49.432   +01 41 41.72   .00862 1.0128 171.7 18.8
2017 09 20 10  00 21 50.021   +01 40 10.68   .00847 1.0126 171.7 18.7
2017 09 20 11  00 21 50.628   +01 38 36.31   .00831 1.0125 171.7 18.7
2017 09 20 12  00 21 51.255   +01 36 58.40   .00816 1.0123 171.8 18.6
2017 09 20 13  00 21 51.902   +01 35 16.78   .00801 1.0121 171.8 18.6
2017 09 20 14  00 21 52.570   +01 33 31.21   .00786 1.0120 171.9 18.5
2017 09 20 15  00 21 53.263   +01 31 41.47   .00771 1.0118 171.9 18.5
2017 09 20 16  00 21 53.980   +01 29 47.31   .00756 1.0116 172.0 18.5
2017 09 20 17  00 21 54.723   +01 27 48.46   .00741 1.0115 172.0 18.4
2017 09 20 18  00 21 55.495   +01 25 44.61   .00725 1.0113 172.1 18.4
2017 09 20 19  00 21 56.297   +01 23 35.46   .00710 1.0112 172.1 18.3
2017 09 20 20  00 21 57.131   +01 21 20.65   .00695 1.0110 172.2 18.3
2017 09 20 21  00 21 57.999   +01 18 59.81   .00680 1.0108 172.2 18.2
2017 09 20 22  00 21 58.905   +01 16 32.52   994280 1.0107 172.3 18.2
2017 09 20 23  00 21 59.851   +01 13 58.33   971572 1.0105 172.3 18.1
2017 09 21 00  00 22 00.839   +01 11 16.75   948860 1.0104 172.4 18.1
2017 09 21 01  00 22 01.873   +01 08 27.23   926144 1.0102 172.4 18.0
2017 09 21 02  00 22 02.957   +01 05 29.17   903425 1.0100 172.5 17.9
2017 09 21 03  00 22 04.095   +01 02 21.91   880701 1.0099 172.5 17.9
2017 09 21 04  00 22 05.290   +00 59 04.72   857973 1.0097 172.6 17.8
2017 09 21 05  00 22 06.549   +00 55 36.78   835239 1.0095 172.6 17.8
2017 09 21 06  00 22 07.876   +00 51 57.20   812500 1.0094 172.7 17.7
2017 09 21 07  00 22 09.278   +00 48 04.97   789756 1.0092 172.7 17.6
2017 09 21 08  00 22 10.760   +00 43 58.95   767005 1.0091 172.7 17.6
2017 09 21 09  00 22 12.332   +00 39 37.88   744248 1.0089 172.8 17.5
2017 09 21 10  00 22 14.001   +00 35 00.33   721484 1.0087 172.8 17.4
2017 09 21 11  00 22 15.778   +00 30 04.69   698713 1.0086 172.9 17.4
2017 09 21 12  00 22 17.672   +00 24 49.12   675933 1.0084 172.9 17.3
2017 09 21 13  00 22 19.697   +00 19 11.53   653145 1.0083 173.0 17.2
2017 09 21 14  00 22 21.868   +00 13 09.53   630348 1.0081 173.0 17.1
2017 09 21 15  00 22 24.201   +00 06 40.36   607541 1.0079 173.1 17.1
2017 09 21 16  00 22 26.714   -00 00 19.18   584723 1.0078 173.1 17.0
2017 09 21 17  00 22 29.431   -00 07 52.80   561894 1.0076 173.1 16.9
2017 09 21 18  00 22 32.378   -00 16 04.84   539052 1.0074 173.2 16.8
2017 09 21 19  00 22 35.585   -00 25 00.44   516196 1.0073 173.2 16.7
2017 09 21 20  00 22 39.089   -00 34 45.67   493326 1.0071 173.2 16.6
2017 09 21 21  00 22 42.934   -00 45 27.82   470440 1.0069 173.2 16.5
2017 09 21 22  00 22 47.173   -00 57 15.64   447536 1.0068 173.2 16.4
2017 09 21 23  00 22 51.871   -01 10 19.85   424613 1.0066 173.2 16.3
2017 09 22 00  00 22 57.106   -01 24 53.58   401669 1.0065 173.2 16.1
2017 09 22 01  00 23 02.978   -01 41 13.21   378702 1.0063 173.2 16.0
2017 09 22 02  00 23 09.612   -01 59 39.38   355709 1.0061 173.1 15.9
2017 09 22 03  00 23 17.167   -02 20 38.52   332687 1.0060 173.0 15.7
2017 09 22 04  00 23 25.853   -02 44 44.97   309634 1.0058 172.9 15.6
2017 09 22 05  00 23 35.948   -03 12 44.29   286545 1.0056 172.7 15.4
2017 09 22 06  00 23 47.828   -03 45 38.19   263415 1.0055 172.5 15.3
2017 09 22 07  00 24 02.019   -04 24 52.45   240241 1.0053 172.1 15.1
2017 09 22 08  00 24 19.283   -05 12 29.96   217016 1.0051 171.7 14.9
2017 09 22 09  00 24 40.755   -06 11 33.30   193732 1.0050 171.0 14.7
2017 09 22 10  00 25 08.226   -07 26 46.16   170384 1.0048 170.1 14.4
2017 09 22 11  00 25 44.688   -09 05 54.75   146965 1.0046 168.7 14.1
2017 09 22 12  00 26 35.576   -11 22 42.76   123473 1.0045 166.8 13.8
2017 09 22 13  00 27 51.971   -14 43 53.59    99927 1.0043 163.7 13.5
2017 09 22 14  00 30 00.805   -20 09 01.49    76407 1.0041 158.6 13.1
2017 09 22 15  00 34 31.111   -30 19 51.02    53257 1.0039 148.6 12.6
2017 09 22 15:10  00 35 49.303   -32 56 34.57    49509 1.0039 146.1 12.5
2017 09 22 15:20  00 37 26.019   -35 58 40.83    45822 1.0039 143.1 12.4
2017 09 22 15:30  00 39 29.416   -39 32 08.08    42220 1.0038 139.5 12.3
2017 09 22 15:40  00 42 12.916   -43 44 30.50    38733 1.0038 135.3 12.3
2017 09 22 15:50  00 46 00.972   -48 45 11.77    35402 1.0038 130.3 12.2
2017 09 22 16:00  00 51 43.413   -54 45 16.31    32288 1.0037 124.3 12.2
2017 09 22 16:10  01 01 19.818   -61 56 11.18    29473 1.0037 117.1 12.2
2017 09 22 16:20  01 21 04.505   -70 25 01.98    27066 1.0037 108.4 12.3
2017 09 22 16:30  02 23 34.559   -79 52 45.99    25200 1.0036  98.3 12.5
2017 09 22 16:40  08 15 55.739   -84 09 35.47    24019 1.0036  86.9 12.8
2017 09 22 16:50  11 08 39.960   -74 07 26.84    23637 1.0036  74.7 13.4
2017 09 22 17:00  11 43 00.204   -62 17 11.46    24096 1.0035  62.5 14.2
2017 09 22 17:10  11 56 53.845   -51 02 53.33    25346 1.0035  51.2 15??
2017 09 22 17:20  12 04 28.281   -41 04 32.73    27268 1.0035  41.2 16??
2017 09 22 17:30  12 09 17.464   -32 33 42.48    29718 1.0034  32.8 17??
2017 09 22 17:40  12 12 39.652   -25 25 53.83    32565 1.0034  25.8 19??
2017 09 22 17:50  12 15 10.168   -19 29 48.47    35702 1.0034  20.0 21??
2017 09 22 18:00  12 17 07.311   -14 32 52.37    39049 1.0033  15.4 23??
2017 09 22 18:10  12 18 41.531   -10 23 44.38    42549 1.0033  11.6 26??
2017 09 22 18:20  12 19 59.254   -06 52 59.90    46160 1.0033   8.8 29??
2017 09 22 18:30  12 21 04.659   -03 53 08.53    49853 1.0032   6.8 32??
2017 09 22 18:40  12 22 00.593   -01 18 16.61    53606 1.0032   5.9 34??
2017 09 22 18:50  12 22 49.067   +00 56 12.52    57405 1.0032   6.0 34??
2017 09 22 19  12 23 31.528   +02 53 57.32    61237 1.0032   6.7 33??
2017 09 22 20  12 26 27.249   +10 53 39.98    84593 1.0030  12.8 26??
2017 09 22 21  12 28 10.499   +15 25 01.22   108139 1.0029  16.9 25??
2017 09 22 22  12 29 19.170   +18 19 17.96   131670 1.0027  19.7 24??
2017 09 22 23  12 30 08.417   +20 20 45.58   155135 1.0026  21.6 24??
2017 09 23 00  12 30 45.588   +21 50 19.49   178528 1.0024  23.1 23??
2017 09 23 01  12 31 14.708   +22 59 08.91   201852 1.0023  24.2 23??
2017 09 23 02  12 31 38.176   +23 53 43.12   225112 1.0021  25.1 23??
2017 09 23 03  12 31 57.518   +24 38 04.05   248317 1.0020  25.8 23??
2017 09 23 04  12 32 13.751   +25 14 50.00   271473 1.0018  26.4 23??
2017 09 23 05  12 32 27.579   +25 45 48.98   294584 1.0017  26.9 24??
2017 09 23 06  12 32 39.509   +26 12 17.22   317657 1.0016  27.4 24??
2017 09 23 07  12 32 49.910   +26 35 10.11   340694 1.0014  27.8 24??
2017 09 23 08  12 32 59.063   +26 55 08.84   363700 1.0013  28.1 24??
2017 09 23 09  12 33 07.179   +27 12 44.70   386677 1.0011  28.4 24??
2017 09 23 10  12 33 14.428   +27 28 21.91   409629 1.0010  28.7 24??
2017 09 23 11  12 33 20.940   +27 42 19.48   432557 1.0008  28.9 24??
2017 09 23 12  12 33 26.823   +27 54 52.56   455463 1.0007  29.1 24??
2017 09 23 13  12 33 32.162   +28 06 13.36   478350 1.0006  29.3 24??
2017 09 23 14  12 33 37.029   +28 16 31.85   501219 1.0004  29.5 24??
2017 09 23 15  12 33 41.484   +28 25 56.24   524071 1.0003  29.6 24??
2017 09 23 16  12 33 45.575   +28 34 33.36   546908 1.0001  29.8 24??
2017 09 23 17  12 33 49.344   +28 42 28.91   569731 1.0000  29.9 24??
2017 09 23 18  12 33 52.827   +28 49 47.72   592540 0.9999  30.0 24??
2017 09 23 19  12 33 56.055   +28 56 33.91   615337 0.9997  30.2 24??
2017 09 23 20  12 33 59.053   +29 02 50.99   638123 0.9996  30.3 25??
2017 09 23 21  12 34 01.845   +29 08 41.97   660898 0.9995  30.4 25??
2017 09 23 22  12 34 04.450   +29 14 09.48   683663 0.9993  30.5 25??
2017 09 23 23  12 34 06.885   +29 19 15.80   706418 0.9992  30.6 25??