"Pseudo-MPEC" for 6Q0B44E = unk P=80d
Created 2018 Oct 26 1:33:12 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
I think this is the same object as XL8D89E, for reasons given on the linked page (orbital elements and area/mass ratio are suspiciously similar.)
This object was found in late August 2006, and tracked for some months thereafter. Then it went unobserved for a while, and we completely lost track of it. The extent to which it is affected by solar radiation pressure makes it very clear that this is an artificial object (sadly; we keep hoping to find a rock orbiting the earth.)
It's difficult to project the object's motion years back into the past and future (which is why the identification with XL8D89E isn't totally certain.) It's probably been in our neighborhood for at least a few years. I can't even say for sure if it's been orbiting the earth/moon system since it was launched, or (as J002E3 did) left us for a while, went into heliocentric orbit for a decade or two, and then came back.
Astrometry:
6Q0B44E C2006 05 31.26084 16 11 03.54 +33 24 00.0 x rD0078703
6Q0B44E C2006 05 31.27150 16 11 26.57 +33 25 38.6 x19.1 VrD0078703
6Q0B44E C2006 05 31.28218 16 11 49.75 +33 27 11.8 x18.8 VrD0078703
6Q0B44E C2006 08 28.29682 23 01 03.50 -09 47 17.1 19.4 V D0063703
6Q0B44E C2006 08 28.30583 23 01 07.24 -09 49 24.0 18.9 V D0063703
6Q0B44E C2006 08 28.31488 23 01 10.84 -09 51 29.5 19.6 V D0063703
6Q0B44E C2006 08 28.32397 23 01 14.44 -09 53 34.1 19.1 V D0063703
6Q0B44E C2006 08 28.40392 23 01 47.38 -10 11 06.9 18.7 V D0063703
6Q0B44E C2006 08 28.40537 23 01 48.21 -10 11 26.2 19.1 V D0063703
6Q0B44E C2006 08 28.40682 23 01 48.86 -10 11 46.3 19.9 V D0063703
6Q0B44E C2006 08 28.40829 23 01 49.47 -10 12 04.1 19.2 V D0063703
6Q0B44E C2006 08 28.46944 23 02 34.03 -10 25 54.7 20.0 R D0063673
6Q0B44E C2006 08 28.47384 23 02 36.66 -10 26 49.2 D0063673
6Q0B44E C2006 08 28.47964 23 05 21.02 -09 53 37.0 19.2 R D0063E12
6Q0B44E C2006 08 28.48005 23 02 40.36 -10 28 03.7 D0063673
6Q0B44E C2006 08 28.48588 23 02 43.99 -10 29 14.9 D0063673
6Q0B44E C2006 08 28.66280 23 06 42.22 -10 36 02.1 19.2 R D0063E12
6Q0B44E C2006 08 28.66524 23 06 43.30 -10 36 32.8 19.4 R D0063E12
6Q0B44E C2006 08 29.25074 23 18 49.34 -13 16 37.0 19.5 V D0063703
6Q0B44E C2006 08 29.25730 23 18 52.45 -13 18 10.1 19.3 V D0063703
6Q0B44E C2006 08 29.27045 23 18 58.66 -13 21 13.0 19.4 V D0063703
6Q0B44E C2006 08 29.37022 23 19 38.61 -13 42 56.8 19.4 V D0063703
6Q0B44E C2006 08 29.37424 23 19 40.14 -13 43 44.3 19.6 V D0063703
6Q0B44E C2006 08 29.37828 23 19 41.73 -13 44 36.2 D0063703
6Q0B44E C2006 08 29.99762 23 31 31.22 -15 58 24.8 20.4 R D0064J95
6Q0B44E C2006 08 30.00672 23 31 36.44 -16 00 19.1 19.8 R D0064J95
6Q0B44E C2006 08 30.05132 23 32 02.94 -16 09 23.2 19.5 V D0064J77
6Q0B44E bC2006 08 31.08761 23 49 47.01 -19 28 14.1 19.5 RoD0065204
6Q0B44E bC2006 08 31.09214 23 49 49.47 -19 28 59.7 oD0065204
6Q0B44E bC2006 08 31.09668 23 49 51.83 -19 29 41.3 oD0065204
6Q0B44E C2006 08 31.43485 23 56 53.50 -20 05 42.4 19.8 VrD0065F84
6Q0B44E C2006 08 31.43948 23 56 54.86 -20 06 36.8 19.8 VrD0065F84
6Q0B44E C2006 08 31.44757 23 56 57.24 -20 08 10.4 20.0 VrD0065F84
6Q0B44E C2006 09 01.06169 00 07 09.41 -22 21 58.4 oD0066204
6Q0B44E C2006 09 01.06736 00 07 12.22 -22 22 53.0 19.6 RoD0066204
6Q0B44E C2006 09 01.07304 00 07 15.04 -22 23 47.6 oD0066204
6Q0B44E tC2006 12 11.36695 07 15 49.42 -15 31 12.3 20.2 V D0076291
6Q0B44E tC2006 12 11.37256 07 15 50.33 -15 30 36.8 18.7 V D0076291
6Q0B44E tC2006 12 11.38316 07 15 51.98 -15 29 27.8 18.8 V D0076291
6Q0B44E C2006 12 12.37247 07 27 23.36 -13 36 26.6 19.7 VrD0076G96
6Q0B44E C2006 12 12.41428 07 27 29.92 -13 31 32.7 19.3 VrD0076G96
6Q0B44E tC2006 12 13.34205 07 38 50.50 -11 39 56.9 D0076291
6Q0B44E tC2006 12 13.35452 07 38 52.71 -11 38 32.4 20.5 V D0076291
6Q0B44E C2006 12 16.50646 08 13 51.56 -04 44 22.0 20.1 VrD0091G96
6Q0B44E C2006 12 16.50699 08 13 51.70 -04 44 16.8 20.0 VrD0091G96
6Q0B44E C2006 12 17.37340 08 25 09.76 -02 40 33.4 20.1 VrD0077G96
6Q0B44E C2006 12 17.37461 08 25 09.98 -02 40 23.1 20.1 VrD0077G96
6Q0B44E C2006 12 17.37515 08 25 10.09 -02 40 18.4 20.2 VrD0077G96
6Q0B44E C2007 03 07.25515 11 28 23.59 +31 17 30.6 19.2 VrD0090G96
6Q0B44E C2007 03 07.25545 11 28 23.95 +31 17 36.6 19.2 VrD0090G96
6Q0B44E C2007 03 07.25575 11 28 24.34 +31 17 42.6 19.2 VrD0090G96
6Q0B44E C2007 03 07.25605 11 28 24.67 +31 17 47.7 19.2 VrD0090G96
6Q0B44E C2007 03 07.28005 11 28 52.57 +31 25 13.0 19.0 VrD0090G96
6Q0B44E C2007 03 07.28035 11 28 52.89 +31 25 18.7 19.1 VrD0090G96
6Q0B44E C2007 03 07.28065 11 28 53.22 +31 25 24.0 18.9 VrD0090G96
6Q0B44E C2007 03 07.28095 11 28 53.58 +31 25 29.3 19.0 VrD0090G96
Station data:
(204) Schiaparelli Observatory (N45.867933 E8.770800) Italy. Observer L.
Buzzi. 0.60-m f/4.64 reflector + CCD.
(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.
(673) Table Mountain Observatory, Wrightwood (N34.381488 W117.682170)
US/California. Observer W. M. Owen Jr. 0.61-m f/16 reflector + CCD.
(703) Catalina Sky Survey (N32.417006 W110.732640) US/Arizona. Observer A.
R. Gibbs. Measurer E. J. Christensen. 0.68-m Schmidt + CCD.
(E12) Siding Spring Survey (S31.273455 E149.064200) Australia/NSW.
Observers E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, A. D.
Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.5-m
Uppsala Schmidt + CCD.
(F84) Hibiscus Observatory, Punaauia (S17.634072 W149.615800) Tahiti.
Observers N. Teamo, S. F. Hönig. Measurer S. F. Hoenig. 0.35-m f/3.88
Schmidt-Cassegrain + 1392x1040 CCD.
(G96) Mt. Lemmon Survey (N32.442754 W110.788720) US/Arizona. Observers A.
R. Gibbs, E. J. Christensen. Measurers E. C. Beshore, E. J. Christensen,
G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski, S.
M. Larson, R. H., R. H. McNaught. 1.5-m reflector + CCD.
(J77) Golden Hill Observatory, Stourton Caundle (N50.930949 W2.405300) UK.
Observer R. Miles. 0.28-m f/10 Schmidt-Cassegrain + CCD.
(J95) Great Shefford (N51.474969 W1.447003) UK. Observer P. Birtwhistle.
0.40-m f/6.0 Schmidt-Cassegrain + CCD.
Orbital elements: 6Q0B44E = unk P=80d
Perigee 2007 Jan 10.931811 +/- 0.000482 TT = 22:21:48 (JD 2454111.431811)
Epoch 2007 Jan 1.0 TT; AMR 0.027246 +/- 7.07e-5 m2/kg Gray
M 308.133919743 +/- 0.0024 (J2000 equator)
n 5.222218005 +/- 5.04e-6 Peri. 140.596320 +/- 0.0016
a710177.3890 +/- 0.457 Node 130.038779 +/- 0.00011
e 0.21461157 +/- 8.55e-7 Incl. 43.272818 +/- 0.00018
P 68.93d H 30.2 G 0.15 U 4.6
q 557765.1037 +/- 0.867 Q 862589.6744 +/- 0.533
53 of 56 observations 2006 Aug. 28-2007 Mar. 7; mean residual 1".148
Residuals in arcseconds: 060531 703( 746- 150-) 060829 703 0.99- 1.07- 061211 291 2.42- .032+ 060531 703( 748- 150-) 060829 703 .267+ 1.31- 061212 G96 .019- .703+ 060531 703( 746- 149-) 060829 703 .223+ .760- 061212 G96 .355+ 1.17+ 060828 703 .908- .484+ 060829 703 .588- 1.07+ 061213 291 .551+ 1.72+ 060828 703 .135+ .816- 060829 703 .842- 1.50- 061213 291 .370+ 1.23+ 060828 703 .237- 1.09- 060829 J95 1.07+ 1.16- 061216 G96 1.45+ 1.50- 060828 703 .246- .854- 060830 J95 .718+ .293- 061216 G96 1.69+ .955- 060828 703 2.52- 2.04+ 060830 J77 2.22+ 2.43- 061217 G96 1.06+ 2.10- 060828 703 .183- 1.19+ 060831 204 1.71- .043- 061217 G96 1.26+ 2.23- 060828 703 .561- .487- 060831 204 1.16- .131+ 061217 G96 1.53+ 2.18- 060828 703 1.73- .368+ 060831 204 2.50- 4.07+ 070307 G96 .020+ .982+ 060828 673 .114+ .346+ 060831 F84 .219- .834+ 070307 G96 .045+ 1.26+ 060828 673 .581+ .424- 060831 F84 .474- .496+ 070307 G96 .457+ 1.55+ 060828 E12 9.3m- .394+ 060831 F84 .200- .138+ 070307 G96 .103+ .938+ 060828 673 .365- .591+ 060901 204 .980- 1.29+ 070307 G96 .564- .213+ 060828 673 .521- .047- 060901 204 .912- 1.64+ 070307 G96 .849- .477+ 060828 E12 .771- .342- 060901 204 1.08- 1.48+ 070307 G96 1.00- .344+ 060828 E12 .181+ .157+ 061211 291 1.93- .658+ 070307 G96 .772- .216+ 060829 703 .247+ .078+ 061211 291 1.91- .172+ Ephemerides (geocentric): Date (UTC) RA Dec delta r elong mag " sig PA ---- -- -- ------------- ----------- ------ ------ ----- --- ---- --- 2007 01 01 12 35 18.398 +38 50 39.80 640456 .98446 105.8 20.9 3.19 67 2007 01 02 13 07 01.374 +40 51 05.33 626901 .98411 101.4 21.0 3.52 72 2007 01 03 13 41 56.463 +42 19 27.90 613731 .98375 96.7 21.1 3.87 78 2007 01 04 14 19 45.253 +43 07 01.13 601133 .98338 91.6 21.2 4.22 85 2007 01 05 14 59 43.283 +43 05 26.27 589345 .98300 86.0 21.4 4.56 93 2007 01 06 15 40 42.492 +42 08 25.69 578656 .98262 80.2 21.7 4.90 100 2007 01 07 16 21 23.981 +40 13 11.22 569393 .98225 74.0 21.9 5.20 107 2007 01 08 17 00 36.395 +37 21 08.56 561905 .98188 67.5 22.3 5.46 114 2007 01 09 17 37 30.396 +33 37 40.88 556542 .98154 60.8 22.7 5.66 119 2007 01 10 18 11 43.078 +29 11 08.07 553622 .98121 54.1 23?? 5.78 124 2007 01 11 18 43 13.627 +24 11 32.34 553400 .98092 47.4 23?? 5.81 128 2007 01 12 19 12 15.372 +18 49 31.36 556042 .98066 40.9 24?? 5.74 131 2007 01 13 19 39 08.469 +13 15 25.61 561603 .98044 34.9 25?? 5.58 133 2007 01 14 20 04 14.840 +07 38 39.27 570019 .98026 29.6 26?? 5.33 135 2007 01 15 20 27 55.302 +02 07 13.35 581109 .98013 25.6 27?? 5.01 136 2007 01 16 20 50 28.238 -03 12 29.22 594599 .98004 23.2 28?? 4.64 136 2007 01 17 21 12 09.158 -08 15 46.86 610135 .98000 22.8 28?? 4.24 136 2007 01 18 21 33 10.738 -12 59 32.71 627315 .98000 24.0 28?? 3.82 136 2007 01 19 21 53 43.125 -17 22 00.28 645703 .98005 26.5 27?? 3.40 135 2007 01 20 22 13 54.501 -21 22 23.52 664855 .98013 29.8 26?? 2.99 134 2007 01 21 22 33 51.838 -25 00 36.13 684357 .98025 33.3 26?? 2.60 133 2007 01 22 22 53 41.107 -28 17 00.42 703891 .98040 37.1 25?? 2.23 131 2007 01 23 23 13 26.551 -31 12 23.71 723245 .98058 40.8 25?? 1.88 130 2007 01 24 23 33 10.269 -33 47 48.95 742262 .98080 44.4 24?? 1.55 128 2007 01 25 23 52 52.578 -36 04 23.74 760803 .98103 47.9 24?? 1.25 127 2007 01 26 00 12 32.494 -38 03 14.75 778744 .98129 51.4 24?? .962 127 2007 01 27 00 32 08.075 -39 45 25.96 795970 .98157 54.6 24?? .699 127 2007 01 28 00 51 36.683 -41 11 58.24 812379 .98187 57.8 23?? .460 132 2007 01 29 01 10 55.217 -42 23 49.44 827875 .98218 60.8 23.6 .256 147 2007 01 30 01 30 00.343 -43 21 54.42 842371 .98251 63.8 23.4 .163 21 2007 01 31 01 48 48.716 -44 07 05.15 855783 .98286 66.6 23.3 .274 65 2007 02 01 02 07 17.189 -44 40 10.59 868035 .98321 69.3 23.1 .442 77 2007 02 02 02 25 22.980 -45 01 56.57 879054 .98358 71.9 23.0 .613 80 2007 02 03 02 43 03.812 -45 13 05.50 888771 .98396 74.5 22.9 .777 80 2007 02 04 03 00 17.996 -45 14 16.05 897123 .98435 77.0 22.8 .935 79 2007 02 05 03 17 04.468 -45 06 02.88 904054 .98475 79.4 22.7 1.09 78 2007 02 06 03 33 22.791 -44 48 56.24 909514 .98515 81.8 22.6 1.23 76 2007 02 07 03 49 13.113 -44 23 21.74 913462 .98556 84.2 22.5 1.37 74 2007 02 08 04 04 36.125 -43 49 40.09 915863 .98598 86.5 22.4 1.51 72 2007 02 09 04 19 32.985 -43 08 06.95 916694 .98641 88.8 22.3 1.64 70 2007 02 10 04 34 05.263 -42 18 52.82 915939 .98684 91.2 22.2 1.77 68 2007 02 11 04 48 14.878 -41 22 03.06 913596 .98727 93.5 22.1 1.89 66 2007 02 12 05 02 04.049 -40 17 37.99 909669 .98771 95.9 22.0 2.02 64 2007 02 13 05 15 35.252 -39 05 33.10 904178 .98814 98.3 21.9 2.14 62 2007 02 14 05 28 51.196 -37 45 39.43 897152 .98859 100.7 21.8 2.26 61 2007 02 15 05 41 54.785 -36 17 44.02 888633 .98903 103.3 21.7 2.38 59 2007 02 16 05 54 49.098 -34 41 30.57 878675 .98947 105.9 21.6 2.49 57 2007 02 17 06 07 37.349 -32 56 40.05 867341 .98991 108.5 21.4 2.61 56 2007 02 18 06 20 22.853 -31 02 51.21 854708 0.9904 111.3 21.3 2.72 54 2007 02 19 06 33 08.992 -28 59 40.79 840857 0.9908 114.3 21.2 2.82 53 2007 02 20 06 45 59.197 -26 46 43.35 825878 0.9912 117.3 21.1 2.92 52 2007 02 21 06 58 56.977 -24 23 30.82 809869 0.9916 120.5 20.9 3.01 50 2007 02 22 07 12 05.990 -21 49 31.88 792933 0.9921 123.9 20.8 3.09 49 2007 02 23 07 25 30.163 -19 04 11.65 775185 0.9925 127.4 20.6 3.15 48 2007 02 24 07 39 13.866 -16 06 51.88 756751 0.9929 131.1 20.5 3.20 48 2007 02 25 07 53 22.116 -12 56 52.01 737773 0.9932 135.0 20.3 3.22 47 2007 02 26 08 08 00.837 -09 33 31.03 718408 0.9936 139.1 20.2 3.21 46 2007 02 27 08 23 17.181 -05 56 10.60 698834 0.9940 143.3 20.0 3.15 46 2007 02 28 08 39 19.961 -02 04 19.35 679240 0.9943 147.7 19.8 3.05 46 2007 03 01 08 56 20.324 +02 02 20.78 659825 0.9946 152.1 19.6 2.89 47