"Pseudo-MPEC" for YS18A5C

Created 2017 Sep 20 11:09:04 UT using Find_Orb

Almost certainly the same object as YS16534. Here's a linked orbit.

Astrometry:
     YS18A5C  C2017 09 20.28675 00 42 59.37 -05 57 42.0          17.6 VqNEOCP703
     YS18A5C  C2017 09 20.29210 00 43 24.79 -05 54 07.3          17.4 VqNEOCP703
     YS18A5C  C2017 09 20.29746 00 43 50.42 -05 50 29.9          18.4 VqNEOCP703
     YS18A5C  C2017 09 20.32598 00 46 07.40 -05 30 35.1          17.1 VqNEOCPI52
     YS18A5C  C2017 09 20.32644 00 46 09.61 -05 30 15.0          17.3 VqNEOCPI52
     YS18A5C  C2017 09 20.32689 00 46 11.80 -05 29 55.5          17.1 VqNEOCPI52

Station data:
(703) Catalina Sky Survey  (N32.417003 W110.732640)  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. 0.68 m Schmidt + CCD.
(I52) Steward Observatory, Mt. Lemmon Station  (N32.442544 W110.788920)
   US/Arizona.

Orbital elements:  YS18A5C
   Perigee 2017 Sep 20.998136 +/- 0.344 TT = 23:57:19 (JD 2458017.498136)
Epoch 2017 Sep 20.0 TT = JDT 2458016.5                        Gray
M 217.25075 +/- 60                  (J2000 equator)
n 143.01580051 +/- 92.8             Peri.  151.90083 +/- 8
a 78165.3287 +/- 39606              Node    21.10338 +/- 11
e   0.7957316 +/- 0.108             Incl.   20.36929 +/- 0.06
P3624.71m/2.517d           H 32.3   G  0.15   U 15.8
q 15966.7052 +/- 23865    Q 140363.952 +/- 83630
From 6 observations 2017 Sept. 20 (57.8 min); mean residual 0".334
Residuals in arcseconds: 
170920 703 .352+ .026+    170920 703 .589+ .108-    170920 I52 .142- .048+
170920 703 .893- .023+    170920 I52 1.1m- .133-    170920 I52 .125+ .044+

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta   r     elong  mag " sig PA
---- -- -- --  ------------   ------------  ------ ------ -----  --- ---- ---
2017 09 20 11  01 05 43.032   -01 43 55.37   106921 1.0049 161.2 17.5 6137  48
2017 09 20 12  01 13 15.340   -01 02 02.15   102560 1.0049 159.4 17.5 9057  58
2017 09 20 13  01 21 29.326   -00 16 11.55    97846 1.0048 157.3 17.5 232'  64
2017 09 20 14  01 30 35.434   +00 34 31.04    92749 1.0047 155.1 17.4 372'  68
2017 09 20 15  01 40 48.064   +01 31 19.06    87238 1.0047 152.5 17.3 650'  70
2017 09 20 16  01 52 27.781   +02 35 54.18    81270 1.0046 149.5 17.3  23d  71
2017 09 20 17  02 06 05.259   +03 50 41.73    74794 1.0046 146.0 17.2 177d  48
2017 09 20 18  02 22 28.797   +05 19 17.46    67748 1.0045 141.8 17.1 117d  74
2017 09 20 19  02 42 59.974   +07 07 15.61    60051 1.0044 136.6 17.0 110d  74
2017 09 20 20  03 10 10.144   +09 23 36.27    51603 1.0043 129.6 16.9 111d  75
2017 09 20 21  03 49 19.352   +12 23 02.57    42295 1.0042 119.7 16.7 116d  77
2017 09 20 22  04 54 03.951   +16 24 15.72    32088 1.0041 103.7 16.6 129d  82
2017 09 20 23  07 07 58.269   +20 19 51.06    21597 1.0040  72.0 17.1 158d  96
2017 09 21 00  11 57 18.029   +07 50 24.75    15976 1.0040   7.1 33?? 133d 105
2017 09 21 01  16 08 41.476   -13 43 23.35    22739 1.0040  65.0 17.7  69d 102
2017 09 21 02  18 08 18.054   -19 21 16.89    33303 1.0041  93.9 17.0  42d  92
2017 09 21 03  19 12 46.544   -20 21 24.12    43415 1.0041 108.9 17.1  28d  85
2017 09 21 04  19 53 47.833   -20 13 31.47    52620 1.0042 118.4 17.2  20d  80
2017 09 21 05  20 22 54.554   -19 46 10.24    60976 1.0042 125.2 17.3 912'  75
2017 09 21 06  20 45 06.679   -19 13 15.05    68594 1.0043 130.3 17.4 690'  70
2017 09 21 07  21 02 54.642   -18 39 23.93    75571 1.0043 134.5 17.5 527'  65
2017 09 21 08  21 17 42.541   -18 06 15.60    81984 1.0044 137.9 17.6 407'  60
2017 09 21 09  21 30 21.371   -17 34 23.52    87897 1.0044 140.9 17.7 318'  53
2017 09 21 10  21 41 24.045   -17 03 55.59    93358 1.0045 143.5 17.8 254'  46
2017 09 21 11  21 51 12.879   -16 34 49.44    98408 1.0045 145.8 17.8 211'  39
2017 09 21 12  22 00 03.623   -16 06 58.78   103079 1.0045 147.9 17.8 183'  33
2017 09 21 13  22 08 07.762   -15 40 16.08   107399 1.0045 149.7 17.9 169'  29
2017 09 21 14  22 15 33.909   -15 14 33.71   111390 1.0046 151.5 17.9 167'  31
2017 09 21 15  22 22 28.680   -14 49 44.47   115072 1.0046 153.1 17.9 179'  37
2017 09 21 16  22 28 57.261   -14 25 41.72   118461 1.0046 154.6 17.9 213'  45