"Pseudo-MPEC" for YDB93D4

Created 2017 Jun 30 0:03:41 UT using Find_Orb

Astrometry:
     YDB93D4  C2017 02 22.26547 10 10 23.30 +01 38 53.0          16.0 Vq     G96
     YDB93D4  C2017 02 22.27494 10 12 44.60 +01 42 01.2          16.0 Vq     G96
     YDB93D4  C2017 02 22.27922 10 13 48.31 +01 43 23.3          16.0 Vq     G96
     YDB93D4 YC2017 02 22.30528 10 18 33.70 +01 48 47.6                o     H06
     YDB93D4 YC2017 02 22.30688 10 18 57.50 +01 49 13.2                o     H06
     YDB93D4 YC2017 02 22.30767 10 19 09.45 +01 49 24.3                o     H06

Station data:
(G96) Mt. Lemmon Survey  (N32.442751 W110.788720)  US/Arizona.  Observers E.
   J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R.
   A. Kowalski, S. M. Larson, F. C. Shelly. 1.5-m reflector + CCD.
(H06) RAS Observatory, Mayhill  (N32.903323 W105.528700)  US/New
   Mexico.  Observers E. Guido, G. Sostero, V. Gonano, L. Donato.

Orbital elements:  YDB93D4
   Perigee 2017 Feb 21.779303 +/- 0.00201 TT = 18:42:11 (JD 2457806.279303)
Epoch 2017 Feb 22.0 TT = JDT 2457806.5                        Gray
M  81.44627 +/- 1.0                 (J2000 equator)
n 369.04178655 +/- 3.04             Peri.  230.77769 +/- 0.35
a 41548.2889 +/- 228                Node   100.85482 +/- 0.057
e   0.7320285 +/- 0.00282           Incl.    5.48321 +/- 0.049
P1404.69m/0.975d           H 32.2   G  0.15   U 13.5
q 11133.7537 +/- 179    Q 71962.8241 +/- 279
From 6 observations 2017 Feb. 22 (60.8 min); mean residual 0".561
Residuals in arcseconds: 
170222 G96 .053- .077-    170222 G96 .169- .050+    170222 H06 1.21- .490+
170222 G96 .223+ .013+    170222 H06 .310+ .457+    170222 H06 .897+ .936-

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta   r     elong  mag " sig PA
---- -- -- --  ------------   ------------  ------ ------ -----  --- ---- ---
2017 02 22 00  08 20 53.880   +02 16 14.20   56098 .98953 149.1 16.4  531  90
2017 02 22 01  08 41 57.458   +02 43 11.72   60891 .98959 154.3 16.4  345  90
2017 02 22 02  09 00 13.791   +03 05 28.06   64729 .98963 158.6 16.4  211  89
2017 02 22 03  09 16 40.794   +03 24 30.45   67699 .98967 162.5 16.4  113  87
2017 02 22 04  09 31 56.012   +03 41 13.10   69862 .98970 166.0 16.4   46  73
2017 02 22 05  09 46 26.143   +03 56 11.69   71257 .98973 169.2 16.3   21   6
2017 02 22 06  10 00 32.027   +04 09 50.75   71909 .98974 172.0 16.2   35 153
2017 02 22 07  10 14 31.641   +04 22 27.60   71829 .98975 173.9 16.1   43 170
2017 02 22 08  10 28 42.237   +04 34 14.50   71015 .98976 174.2 16.1   64  30
2017 02 22 09  10 43 22.291   +04 45 19.67   69454 .98976 172.5 16.1  132  58
2017 02 22 10  10 58 53.770   +04 55 47.46   67119 .98975 169.6 16.1  261  71
2017 02 22 11  11 15 45.473   +05 05 37.31   63964 .98973 165.9 16.2  473  77
2017 02 22 12  11 34 38.777   +05 14 40.59   59925 .98970 161.6 16.2  815  81
2017 02 22 13  11 56 38.906   +05 22 32.43   54907 .98967 156.3 16.1 1379  84
2017 02 22 14  12 23 40.125   +05 28 09.18   48771 .98963 149.8 16.1 2376  86
2017 02 22 15  12 59 31.853   +05 28 36.38   41314 .98957 141.1 16.0 4359  88
2017 02 22 16  13 53 37.153   +05 14 14.70   32234 .98949 127.8 15.8 9245  91
2017 02 22 17  15 38 18.285   +03 58 38.28   21219 .98940 101.8 15.7 460'  93
2017 02 22 18  21 10 12.650   -03 16 50.25   11267 .98931  19.5 22??  29d  94
2017 02 22 19  04 01 16.721   -03 34 12.96   18911 .98938  83.8 16.2 580'  86
2017 02 22 20  06 05 52.581   -00 53 41.67   30264 .98949 114.8 16.0 246'  85
2017 02 22 21  07 05 15.724   +00 31 35.81   39701 .98958 129.6 16.2 8837  85
2017 02 22 22  07 43 16.404   +01 25 26.00   47446 .98966 139.0 16.3 6195  85
2017 02 22 23  08 11 22.758   +02 03 47.66   53818 .98973 146.0 16.4 4751  85
2017 02 23 00  08 34 00.170   +02 33 19.93   59040 .98979 151.5 16.4 3864  86
2017 02 23 01  08 53 16.435   +02 57 18.87   63260 .98984 156.2 16.5 3283  86
2017 02 23 02  09 10 22.803   +03 17 32.96   66579 .98988 160.3 16.4 2891  86
2017 02 23 03  09 26 03.640   +03 35 07.69   69070 .98991 164.0 16.4 2629  86
2017 02 23 04  09 40 49.327   +03 50 45.23   70778 .98994 167.4 16.3 2464  86
2017 02 23 05  09 55 02.669   +04 04 54.09   71734 .98996 170.5 16.2 2381  86
2017 02 23 06  10 09 02.525   +04 17 54.23   71956 .98997 173.1 16.1 2374  86
2017 02 23 07  10 23 06.205   +04 29 59.78   71446 .98998 174.6 16.0 2446  86
2017 02 23 08  10 37 31.426   +04 41 20.57   70197 .98998 174.2 16.0 2608  86
2017 02 23 09  10 52 38.380   +04 52 02.57   68185 .98998 171.8 16.1 2885  86
2017 02 23 10  11 08 52.519   +05 02 07.43   65375 .98996 168.5 16.1 3321  86
2017 02 23 11  11 26 49.060   +05 11 30.40   61711 .98994 164.4 16.1 3996  87
2017 02 23 12  11 47 21.391   +05 19 54.79   57111 .98991 159.5 16.1 5065  87
2017 02 23 13  12 11 58.825   +05 26 37.33   51458 .98987 153.6 16.1 6856  88
2017 02 23 14  12 43 29.953   +05 29 44.53   44577 .98982 145.9 16.0 169'  89
2017 02 23 15  13 28 11.361   +05 23 34.24   36210 .98975 135.0 15.9 292'  91
2017 02 23 16  14 44 23.943   +04 45 15.03   26008 .98967 116.1 15.7 673'  93
2017 02 23 17  17 58 19.633   +01 05 01.57   14360 .98956  67.8 16.4  44d  95
2017 02 23 18  02 09 09.105   -05 06 46.82   14153 .98956  55.1 17??  27d  88
2017 02 23 19  05 28 12.407   -01 46 23.08   25788 .98966 104.6 16.0 571'  85
2017 02 23 20  06 44 51.688   +00 02 13.98   36031 .98976 123.7 16.2 313'  85
2017 02 23 21  07 29 31.351   +01 06 12.66   44430 .98985 134.8 16.3 211'  85
2017 02 23 22  08 00 57.186   +01 49 51.34   51338 .98992 142.6 16.4 9580  85
2017 02 23 23  08 25 29.561   +02 22 31.18   57014 .98998 148.6 16.5 7757  85
2017 02 24 00  08 45 57.699   +02 48 31.10   61634 0.9900 153.6 16.5 6597  85
2017 02 24 01  09 03 50.937   +03 10 08.09   65316 0.9901 158.0 16.5 5828  86