"Pseudo-MPEC" for C05GHG1 = C04W5Q1 = C073CX1

Created 2019 Apr 7 1:49:03 UT using Find_Orb

Click here for an explanation of pseudo-MPECs

It is now clear that this object is also ZTF02Rj = ZTF02Rn, observed on 2019 January 31. There is also a decent match for orbital elements for ZTF01a9 = ZV2F779 = ZTF01nS, an ETBO tracked in November 2018; and a good match to elements for YS18A5C = YS16534 = A104ayW = A104lks = YT273BF = A104shw = YUA31FA = YU3F416, the "mystery object" that showed up frequently on NEOCP in late 2017. In those cases, there is ambiguity as to how many orbits occurred in between, and the unpredictable nature of the orbit means we'll never really know what happened in between the arcs. But it's definitely one object seen at different times, and it'll probably crop up again and again.

 
 Astrometry: 
     ZTF02Rj  C2019 01 31.21893108 00 33.23 +19 24 19.4    ~1V6mx17.62RUNEOCPI41
     ZTF02Rj  C2019 01 31.21927808 00 35.99 +19 24 03.8    ~1V6mx17.62RUNEOCPI41
     ZTF02Rj  C2019 01 31.22136908 00 53.05 +19 22 29.4    ~1V6mx17.76RUNEOCPI41
     ZTF02Rj  C2019 01 31.22171608 00 55.89 +19 22 13.3    ~1V6mx17.76RUNEOCPI41
     ZTF02Rj  C2019 01 31.23866208 03 11.22 +19 09 05.0    ~1V73x17.86RUNEOCPI41
     ZTF02Rj  C2019 01 31.23900908 03 13.91 +19 08 48.9    ~1V73x17.86RUNEOCPI41
     ZTF02Rj  C2019 01 31.24622308 04 10.04 +19 03 02.2    ~1V7Xx17.77RUNEOCPI41
     ZTF02Rj  C2019 01 31.24657008 04 12.68 +19 02 45.6    ~1V7Xx17.77RUNEOCPI41
     ZTF02Rn  C2019 01 31.28164008 08 35.12 +18 33 12.9    ~1VI1x17.68RUNEOCPI41
     ZTF02Rn  C2019 01 31.28198708 08 37.61 +18 32 54.3    ~1VI1x17.68RUNEOCPI41
     ZTF02Rj  CK190131:07100474 122.16835   +18.25611           x17.7 GV     H01
     ZTF02Rj  CK190131:07201509 122.38189   +18.14251           x17.7 GV     H01
     ZTF02Rj KC2019 01 31.30970 08 10 51.11 +18 12 06.0         x18.8 R      291
     ZTF02Rj KC2019 01 31.31093 08 10 59.78 +18 10 55.4         x18.3 R      291
     ZTF02Rj KC2019 01 31.31223 08 11 08.94 +18 09 40.2         x18.0 R      291
     ZTF02Rj  CK190131:07301405 122.59107   +18.02970           x17.7 GV     H01
     ZTF02Rj  CK190131:07400200 122.79620   +17.91766           x17.8 GV     H01
     ZTF02Rj  CK190131:08344721 123.94830   +17.26987           x17.9 GV     H01
     ZTF02Rj  CK190131:08440253 124.14531   +17.15710           x17.6 GV     H01
     ZTF02Rn  C2019 01 31.36924208 18 54.62 +17 09 23.7    ~1VI1x17.79RUNEOCPI41
     ZTF02Rn  C2019 01 31.36958908 18 57.05 +17 09 02.6    ~1VI1x17.79RUNEOCPI41
     ZTF02Rj  CK190131:08594591 124.48257   +16.96335           x17.6 GV     H01
     ZTF02Rj  CK190131:09101092 124.70780   +16.83377           x17.8 GV     H01
     C04W5Q1  C2019 03 06.33243 11 30 09.28 -06 39 20.6    ~369I 17.5 GVNEOCP703
     C04W5Q1  C2019 03 06.33772 11 30 35.66 -06 46 03.0    ~369I 18.0 GVNEOCP703
     C04W5Q1  C2019 03 06.34300 11 31 02.24 -06 52 45.4    ~369I       VNEOCP703
     C04W5Q1  C2019 03 06.34828 11 31 28.61 -06 59 30.0    ~369I       VNEOCP703
     C05GHG1  C2019 03 15.32034 12 07 27.06 -11 50 20.5    ~3FBP 17.9 GVNEOCP703
     C05GHG1  C2019 03 15.33736 12 08 55.17 -12 11 38.9    ~3FBP 18.6 GVNEOCP703
     C05GHG1  C2019 03 15.40592 12 15 14.17 -13 37 08.2    ~3FBP 18.3 GVNEOCP703
     C05GHG1  C2019 03 15.40644 12 15 17.29 -13 37 46.9    ~3FBP 18.4 GVNEOCP703
     C05GHG1  C2019 03 15.40696 12 15 20.35 -13 38 25.1    ~3FBP 18.3 GVNEOCP703
     C05GHG1  C2019 03 15.47978 12 23 26.15 -15 06 47.6    ~3FCK 18.3 GVNEOCP703
     C05GHG1  C2019 03 15.48012 12 23 28.70 -15 07 12.6    ~3FCK       VNEOCP703
     C05GHG1  C2019 03 15.48030 12 23 30.08 -15 07 25.6    ~3FCK 17.9 GVNEOCP703
     C073CX1  C2019 04 06.24723 12 24 50.92 -13 53 33.6    ~46CX 17.3 GVNEOCP703
     C073CX1  C2019 04 06.25257 12 25 15.06 -13 59 08.7    ~46CX 17.8 GVNEOCP703
     C073CX1  C2019 04 06.25790 12 25 38.76 -14 04 35.7    ~46CX 17.6 GVNEOCP703
     C073CX1  C2019 04 06.26323 12 26 02.26 -14 10 02.7    ~46CX 17.7 GVNEOCP703
     C073CX1 KC2019 04 07.01881114 32 21.031-26 23 58.73         17.8 GV     J04
     C073CX1 KC2019 04 07.01923114 32 25.672-26 24 36.33         17.9 GV     J04
     C073CX1 KC2019 04 07.01965414 32 30.397-26 25 13.17         17.9 GV     J04
     C073CX1 KC2019 04 07.02007514 32 35.068-26 25 50.23         17.9 GV     J04
     C073CX1 KC2019 04 07.02049914 32 39.759-26 26 27.36         17.9 GV     J04
     C073CX1 KC2019 04 07.02110514 32 46.523-26 27 20.78         17.8 GV     J04
     C073CX1 KC2019 04 07.02194814 32 55.914-26 28 35.18         17.8 GV     J04
     C073CX1 KC2019 04 07.02237014 33 00.603-26 29 12.05         18.0 GV     J04

Station data:
(291) LPL/Spacewatch II  (N31.961669 W111.599905)  US/Arizona.  Observers J.
   V. Scotti, R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
(703) Catalina Sky Survey  (N32.417006 W110.732640)  US/Arizona.  Observer R.
   A. Kowalski. Measurers B. M. Africano, E. J. Christensen, G. A. Farneth,
   D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M.
   Larson, G. J. Leonard, T. A. Pruyne, R. L. Seaman, F. C. Shelly. 0.68-m
   Schmidt + 10K CCD.
(H01) Magdalena Ridge Observatory, Socorro  (N33.984833 W107.189333)  US/New
   Mexico.  Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan.
(I41) Palomar Mountain--ZTF  (N33.357340 W116.859780)  US/California. 1.2-m
   f/2.44 Oschin Schmidt + CCD.
(J04) ESA Optical Ground Station, Tenerife  (N28.300924 W16.511830)  Canary
   Islands (Spain).  Observer D. Abreu. Measurers M. Micheli, D. Koschny, A.
   Knöfel, M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.

Orbital elements:  C05GHG1 = C04W5Q1 = C073CX1
   Perigee 2019 Mar 13.946701 +/- 0.000594 TT = 22:43:14 (JD 2458556.446701)
A1: 1.51e-5 +/- 2.79e-8   A2: -1.28e-6 +/- 1.34e-8   A3: -1.83e-6 +/- 7.67e-9 AU/day^2
Epoch 2019 Mar 15.0 TT = JDT 2458557.5                        Gray
M 170.52100444 +/- 0.09             (J2000 equator)
n 161.89226331 +/- 0.00595          Peri.    9.68899 +/- 0.015
a 71964.6873 +/- 1.76               Node   344.03164 +/- 0.014
e   0.7159131 +/- 7.24e-5           Incl.   29.45836 +/- 0.0016
P3202.07m/2.224d           H 33.0   G  0.15   U  9.3
q 20444.2217 +/- 4.83    Q 123485.152 +/- 7.82
24 of 47 observations 2019 Mar. 6-Apr. 7; mean residual 4".993
Residuals in arcseconds: 
190131 I41(1301+ 3754-)   190131 H01(1192+ 3377-)   190315 703 4.66+ 4.15-
190131 I41(1299+ 3753-)   190131 H01(1138+ 3215-)   190315 703 4.66+ 4.75-
190131 I41(1297+ 3746-)   190131 H01(1128+ 3186-)   190315 703 5.08+ 4.83-
190131 I41(1297+ 3745-)   190131 I41(1115+ 3177-)   190406 703 .228- .144-
190131 I41(1280+ 3688-)   190131 I41(1115+ 3175-)   190406 703 1.66+ 2.01-
190131 I41(1279+ 3686-)   190131 H01(1111+ 3138-)   190406 703 .181+ .779+
190131 I41(1272+ 3662-)   190131 H01(1100+ 3105-)   190406 703 2.14- .722+
190131 I41(1271+ 3660-)   190306 703 6.93+ 12.6-    190407 J04 1.38- 1.19+
190131 I41(1231+ 3532-)   190306 703 1.83+ 3.81-    190407 J04 1.31- .313+
190131 I41(1230+ 3531-)   190306 703 1.07- 4.24+    190407 J04 .579- .458+
190131 H01(1220+ 3462-)   190306 703 8.95- 10.1+    190407 J04 .307- .208+
190131 H01(1210+ 3434-)   190315 703 9.85+ 9.20-    190407 J04 .240- .149+
190131 291(1203+ 3423-)   190315 703 1.86- 6.16+    190407 J04 .604+ .289-
190131 291(1201+ 3418-)   190315 703 9.42- 6.76+    190407 J04 1.43+ .990-
190131 291(1199+ 3413-)   190315 703 8.99- 6.42+    190407 J04 1.64+ .968-
190131 H01(1201+ 3405-)   190315 703 9.50- 6.56+

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta  elong  mag " sig PA
---- -- -- --  -------------   -----------  ------ -----  --- ---- ---
2019 04 06 00  11 47 02.534   -07 17 45.88  113287 162.4 18.3 73.1 119
2019 04 06 01  11 53 24.782   -08 07 38.66  115661 163.9 18.3 69.7 118
2019 04 06 02  11 59 34.093   -08 55 16.97  117761 165.3 18.3 66.8 118
2019 04 06 03  12 05 32.863   -09 40 59.76  119593 166.5 18.3 64.3 118
2019 04 06 04  12 11 23.168   -10 25 03.15  121167 167.7 18.3 62.1 118
2019 04 06 05  12 17 06.839   -11 07 41.05  122486 168.7 18.3 60.2 118
2019 04 06 06  12 22 45.528   -11 49 05.60  123556 169.6 18.2 58.5 117
2019 04 06 07  12 28 20.749   -12 29 27.51  124380 170.3 18.2 57.1 117
2019 04 06 08  12 33 53.927   -13 08 56.34  124960 170.8 18.2 55.8 117
2019 04 06 09  12 39 26.422   -13 47 40.76  125300 171.1 18.2 54.8 116
2019 04 06 10  12 44 59.567   -14 25 48.67  125400 171.2 18.2 54.0 116
2019 04 06 11  12 50 34.696   -15 03 27.43  125259 171.0 18.2 53.4 116
2019 04 06 12  12 56 13.168   -15 40 43.90  124879 170.6 18.2 52.9 115
2019 04 06 13  13 01 56.403   -16 17 44.65  124257 170.1 18.2 52.7 115
2019 04 06 14  13 07 45.908   -16 54 35.98  123391 169.3 18.3 52.7 115
2019 04 06 15  13 13 43.317   -17 31 24.03  122279 168.4 18.3 52.8 114
2019 04 06 16  13 19 50.431   -18 08 14.84  120916 167.3 18.3 53.3 114
2019 04 06 17  13 26 09.274   -18 45 14.46  119298 166.2 18.3 54.0 113
2019 04 06 18  13 32 42.152   -19 22 28.94  117419 164.9 18.3 54.9 113
2019 04 06 19  13 39 31.741   -20 00 04.41  115272 163.5 18.3 56.3 112
2019 04 06 20  13 46 41.189   -20 38 07.03  112849 162.0 18.3 58.0 111
2019 04 06 21  13 54 14.265   -21 16 43.05  110139 160.4 18.3 60.2 111
2019 04 06 22  14 02 15.546   -21 55 58.63  107131 158.6 18.3 63.1 110
2019 04 06 23  14 10 50.692   -22 35 59.62  103811 156.8 18.3 66.6 109
2019 04 07 00  14 20 06.824   -23 16 51.16  100164 154.7 18.3 71.1 108
2019 04 07 01  14 30 13.076   -23 58 36.80   96170 152.5 18.3 76.8 107
2019 04 07 02  14 41 21.427   -24 41 16.91   91806 150.0 18.2 84.1 106
2019 04 07 03  14 53 47.969   -25 24 45.75   87045 147.3 18.2 93.6 104
2019 04 07 04  15 07 54.934   -26 08 45.58   81856 144.2 18.1  106 103
2019 04 07 05  15 24 14.063   -26 52 35.02   76199 140.6 18.1  123 101
2019 04 07 06  15 43 32.456   -27 34 44.33   70026 136.4 18.0  148  98
2019 04 07 07  16 07 03.320   -28 11 59.80   63280 131.4 17.9  183  96
2019 04 07 08  16 36 46.993   -28 37 08.02   55894 125.0 17.9  239  92
2019 04 07 09  17 16 15.029   -28 32 49.21   47798 116.5 17.8  334  87
2019 04 07 10  18 12 09.226   -27 12 55.98   38955 104.3 17.7  516  81
2019 04 07 11  19 38 11.096   -22 18 10.25   29547  84.5 17.9  926  71
2019 04 07 12  22 02 40.433   -06 43 52.31   20923  47.0 19?? 1914  62
2019 04 07 13  02 02 06.378   +21 55 49.39   18581  20.8 24?? 2509  71
2019 04 07 14  05 49 55.853   +27 54 59.62   25334  70.6 18.3 1397  97
2019 04 07 15  07 43 39.050   +21 52 03.68   34716  96.7 17.7  769 109
2019 04 07 16  08 43 26.433   +16 16 24.55   43872 111.6 17.7  496 114
2019 04 07 17  09 21 05.389   +11 59 18.90   52312 121.5 17.8  357 116
2019 04 07 18  09 47 50.539   +08 39 15.08   60017 128.7 17.9  277 118
2019 04 07 19  10 08 23.511   +05 58 08.03   67049 134.3 18.0  226 118
2019 04 07 20  10 25 02.111   +03 44 16.85   73479 138.9 18.1  190 119
2019 04 07 21  10 39 02.196   +01 50 11.49   79369 142.7 18.1  165 119
2019 04 07 22  10 51 09.323   +00 10 53.84   84770 146.0 18.2  146 119
2019 04 07 23  11 01 52.737   -01 17 00.76   89725 148.8 18.2  131 119
2019 04 08 00  11 11 32.220   -02 35 57.54   94270 151.4 18.3  119 119
2019 04 08 01  11 20 21.730   -03 47 42.65   98434 153.7 18.3  110 119
2019 04 08 02  11 28 31.469   -04 53 35.70  102241 155.9 18.3  102 119
2019 04 08 03  11 36 09.120   -05 54 37.77  105712 157.8 18.3 94.9 119
2019 04 08 04  11 43 20.619   -06 51 36.66  108864 159.6 18.3 89.3 119
2019 04 08 05  11 50 10.666   -07 45 10.44  111712 161.3 18.3 84.5 118
2019 04 08 06  11 56 43.057   -08 35 49.94  114269 162.8 18.3 80.4 118
2019 04 08 07  12 03 00.923   -09 24 00.48  116545 164.2 18.3 76.8 118
2019 04 08 08  12 09 06.896   -10 10 03.15  118549 165.5 18.3 73.7 118
2019 04 08 09  12 15 03.229   -10 54 15.74  120289 166.8 18.3 71.1 117
2019 04 08 10  12 20 51.891   -11 36 53.44  121772 167.9 18.3 68.7 117
2019 04 08 11  12 26 34.635   -12 18 09.35  123001 168.8 18.3 66.7 117