"Pseudo-MPEC" for 2006-047B = NORAD 29511 = STEREO-B
Created 2016 Jun 13 15:24:57 UT using Find_Orb
The observations were good enough to find orbital elements for the lunar flyby that put STEREO-B into heliocentric orbit, and for the heliocentric orbit itself. I can't extrapolate backwards to the previous lunar flyby on 2006 December 15 with any accuracy, much less to the previous five orbits around the earth.
This orbit has the object gradually receding from us, then coming back and passing us in July 2023, getting slightly brighter than magnitude 22. The Wikipedia page for STEREO confirms the 2023 flyby, and the 'where is STEREO' page shows that the orbit given below is still valid to quite good accuracy.
Astrometry:
STEREO-B C2007 02 09.22439 08 56 44.19 +30 42 00.2 17.5 V D0081703
STEREO-B C2007 02 09.23087 08 56 43.62 +30 41 33.6 17.7 V D0081703
STEREO-B C2007 02 09.23796 08 56 43.04 +30 41 03.6 17.6 V D0081703
STEREO-B C2007 02 09.24446 08 56 42.39 +30 40 35.1 17.6 V D0081703
STEREO-B C2007 02 09.30464 08 56 35.59 +30 35 33.3 17.7 V D0081703
STEREO-B C2007 02 09.30517 08 56 35.52 +30 35 30.3 17.8 V D0081703
STEREO-B C2007 02 09.30571 08 56 35.48 +30 35 27.3 17.6 V D0081703
STEREO-B C2007 02 09.30624 08 56 35.41 +30 35 24.5 17.6 V D0081703
STEREO-B C2007 02 09.36260 08 56 29.65 +30 29 37.5 17.7 V D0081703
STEREO-B C2007 02 09.36315 08 56 29.61 +30 29 33.3 17.6 V D0081703
STEREO-B C2007 02 09.36369 08 56 29.58 +30 29 29.8 17.6 V D0081703
STEREO-B C2007 02 09.43413 08 56 28.47 +30 20 59.9 17.2 V D0081703
STEREO-B C2007 02 09.43466 08 56 28.52 +30 20 55.2 17.5 V D0081703
STEREO-B C2007 02 09.43575 08 56 28.55 +30 20 47.1 17.3 V D0081703
STEREO-B C2007 02 09.49800 08 56 36.99 +30 12 26.2 15.3 V D0081703
STEREO-B C2007 02 09.49910 08 56 37.24 +30 12 18.1 17.4 V D0081703
STEREO-B C2007 02 10.22897 09 02 25.05 +29 14 06.6 17.8 V 703
STEREO-B C2007 02 10.22950 09 02 25.00 +29 14 04.6 17.8 V 703
STEREO-B C2007 02 10.23002 09 02 24.95 +29 14 02.1 17.8 V 703
STEREO-B C2007 02 10.23056 09 02 24.90 +29 14 00.2 17.7 V 703
STEREO-B C2007 02 16.25402 09 27 05.50 +21 58 55.3 17.6 V D0087703
STEREO-B C2007 02 16.26102 09 27 04.46 +21 58 32.7 17.6 V D0087703
STEREO-B C2007 02 16.26806 09 27 03.34 +21 58 09.8 17.6 V D0087703
STEREO-B C2007 02 16.27509 09 27 02.26 +21 57 45.4 17.7 V D0087703
STEREO-B C2007 02 16.30694 09 26 57.15 +21 55 48.8 17.3 V D0087703
STEREO-B C2007 02 16.30730 09 26 57.12 +21 55 48.1 17.4 V D0087703
STEREO-B C2007 02 16.30765 09 26 57.07 +21 55 46.1 17.5 V D0087703
STEREO-B C2007 02 16.30799 09 26 57.03 +21 55 45.1 17.5 V D0087703
STEREO-B C2007 02 16.35133 09 26 50.56 +21 52 49.4 17.6 V D0087703
STEREO-B C2007 02 16.35854 09 26 49.63 +21 52 18.5 17.6 V D0087703
STEREO-B C2007 02 16.36576 09 26 48.66 +21 51 46.5 17.6 V D0087703
STEREO-B C2007 02 16.37296 09 26 47.79 +21 51 14.3 17.7 V D0087703
STEREO-B C2007 02 27.13784 09 54 26.31 +13 07 28.8 18.8 V D0089691
STEREO-B C2007 02 27.14798 09 54 25.99 +13 07 12.0 19.0 V D0089691
STEREO-B C2007 02 27.15812 09 54 25.56 +13 06 54.8 18.9 V D0089691
STEREO-B C2007 02 27.18290 09 54 24.05 +13 06 11.0 18.7 V D0089291
STEREO-B C2007 02 27.18689 09 54 23.75 +13 06 03.8 18.8 V D0089291
STEREO-B C2007 02 27.19066 09 54 23.45 +13 05 56.8 18.7 V D0089291
STEREO-B C2007 02 27.40152 09 54 00.90 +12 57 42.2 D0089291
STEREO-B C2007 02 27.40550 09 54 00.64 +12 57 30.7 D0089291
STEREO-B C2007 02 27.40934 09 54 00.44 +12 57 19.8 D0089291
Station data:
(291) LPL/Spacewatch II (N31.9617 W111.5991) US/Arizona. 1.8-m f/2.7
reflector + CCD.
(691) Steward Observatory, Kitt Peak-Spacewatch (N31.9581 W111.5990) US/Arizona.
0.91-m Spacewatch telescope.
(703) Catalina Sky Survey (N32.41712 W110.73264) US/Arizona. Observer A. R.
Gibbs. Measurer E. J. Christensen. 0.68-m Schmidt + CCD.
Orbital elements: 2006-047B = NORAD 29511 = STEREO-B
Perilune 2007 Jan 21.380240 +/- 0.00563 TT = 9:07:32 (JD 2454121.880240)
Epoch 2007 Jan 21.4 TT = JDT 2454121.9 Find_Orb
q 8785.59595 +/- 416
H 27.2 G 0.15 Peri. 311.23525 +/- 1.5
Node 166.69944 +/- 2.2
e 1.8671737 +/- 0.0397 Incl. 104.53318 +/- 0.6
From 41 observations 2007 Feb. 9-27; mean residual 0".380
Orbital elements: 2006-047B = NORAD 29511 = STEREO-B Perihelion 2007 Jan 14.150755 +/- 0.00206 TT = 3:37:05 (JD 2454114.650755) Epoch 2007 Feb 27.0 TT = JDT 2454158.5 Earth MOID: 0.0075 Find_Orb M 40.90620 +/- 0.0015 n 0.93288287 +/- 8.32e-6 Peri. 134.54617 +/- 0.0021 a 1.03733246 +/- 6.17e-6 Node 338.76591 +/- 0.00008 e 0.0452069 +/- 5.99e-6 Incl. 0.31549 +/- 0.000051 P 1.06/385.89d H 27.2 G 0.15 U 4.9 q 0.99043786 +/- 3.76e-7 Q 1.08422706 +/- 1.27e-5 From 41 observations 2007 Feb. 9-27; mean residual 0".380 Residuals in arcseconds: 070209 703 .468+ .172+ 070209 703 .713- .850- 070216 703 .179- .471- 070209 703 .311- .286+ 070209 703 .639- .125+ 070216 703 .383+ .169- 070209 703 .128+ .391+ 070210 703 .085+ .417+ 070216 703 .216- .390- 070209 703 .394- .308+ 070210 703 .079+ .494+ 070216 703 .145- .378- 070209 703 .155+ .068+ 070210 703 .065+ .037+ 070227 691 .277+ .124- 070209 703 .065+ .036+ 070210 703 .080+ .263+ 070227 691 .041+ .015- 070209 703 .377+ .066+ 070216 703 .172+ .104+ 070227 691 6.8m+ .032+ 070209 703 .285+ .246+ 070216 703 .223+ .242+ 070227 291 .201+ 3.6m- 070209 703 .130+ .431+ 070216 703 .427- .759+ 070227 291 .244+ .062+ 070209 703 .148+ .096- 070216 703 .279- .297+ 070227 291 .240+ .012- 070209 703 .281+ .016+ 070216 703 1.18- .860- 070227 291 .466+ .197+ 070209 703 .406+ .307+ 070216 703 .800- .190- 070227 291 .206+ .021- 070209 703 .675+ .297- 070216 703 .726- .856- 070227 291 .466+ .017+ 070209 703 .260+ .038+ 070216 703 .535- .559- Ephemerides (geocentric): Date (UTC) RA Dec delta r elong mag " sig PA ---- -- -- ------------ ------------ ------ ------ ----- --- ---- --- 2007 02 27 09 53 37.342 +13 17 20.36 .01292 1.0028 168.1 18.5 0.2 123 2007 02 28 09 55 39.162 +12 39 13.83 .01325 1.0034 167.8 18.6 0.1 113 2007 03 01 09 57 37.673 +12 02 36.20 .01358 1.0039 167.4 18.6 0.0 55 2007 03 02 09 59 32.956 +11 27 24.61 .01392 1.0045 167.0 18.7 0.1 160 2007 03 03 10 01 25.081 +10 53 36.46 .01425 1.0050 166.6 18.8 0.2 149 2007 03 04 10 03 14.121 +10 21 09.31 .01460 1.0056 166.2 18.8 0.4 145 2007 03 05 10 05 00.158 +09 50 00.83 .01494 1.0061 165.8 18.9 0.5 143 2007 03 06 10 06 43.288 +09 20 08.75 .01530 1.0067 165.3 19.0 0.7 142 2007 03 07 10 08 23.628 +08 51 30.82 .01565 1.0073 164.8 19.0 0.8 142 2007 03 08 10 10 01.313 +08 24 04.74 .01602 1.0078 164.3 19.1 1.0 141 2007 03 09 10 11 36.502 +07 57 48.19 .01638 1.0084 163.8 19.2 1.1 141 2007 03 10 10 13 09.374 +07 32 38.78 .01676 1.0090 163.3 19.2 1.3 141 2007 03 11 10 14 40.130 +07 08 34.00 .01714 1.0096 162.7 19.3 1.4 141 2007 03 12 10 16 08.992 +06 45 31.26 .01753 1.0102 162.2 19.4 1.6 141 2007 03 13 10 17 36.206 +06 23 27.82 .01793 1.0108 161.6 19.4 1.7 141 2007 03 14 10 19 02.042 +06 02 20.77 .01833 1.0114 161.0 19.5 1.9 141 2007 03 15 10 20 26.800 +05 42 06.96 .01874 1.0120 160.5 19.6 2.0 141 2007 03 16 10 21 50.807 +05 22 42.99 .01917 1.0126 159.9 19.6 2.2 141 2007 03 17 10 23 14.418 +05 04 05.19 .01960 1.0132 159.3 19.7 2.4 141 2007 03 18 10 24 38.002 +04 46 09.64 .02004 1.0139 158.7 19.8 2.5 141 2007 03 19 10 26 01.926 +04 28 52.29 .02050 1.0145 158.1 19.8 2.7 141 2007 03 20 10 27 26.530 +04 12 09.11 .02096 1.0151 157.6 19.9 2.8 141 2007 03 21 10 28 52.098 +03 55 56.29 .02143 1.0157 157.0 20.0 3.0 141 2007 03 22 10 30 18.843 +03 40 10.50 .02192 1.0164 156.4 20.0 3.1 140 2007 03 23 10 31 46.893 +03 24 48.95 .02241 1.0170 155.9 20.1 3.3 140 2007 03 24 10 33 16.295 +03 09 49.45 .02292 1.0177 155.3 20.2 3.4 140 2007 03 25 10 34 47.035 +02 55 10.39 .02343 1.0183 154.8 20.2 3.6 140 2007 03 26 10 36 19.048 +02 40 50.61 .02395 1.0190 154.2 20.3 3.7 139 2007 03 27 10 37 52.240 +02 26 49.32 .02449 1.0196 153.7 20.4 3.9 139 2007 03 28 10 39 26.502 +02 13 05.97 .02503 1.0203 153.1 20.4 4.1 138 2007 03 29 10 41 01.716 +01 59 40.18 .02558 1.0210 152.6 20.5 4.2 138 2007 03 30 10 42 37.769 +01 46 31.68 .02614 1.0217 152.1 20.6 4.4 138 2007 03 31 10 44 14.550 +01 33 40.28 .02671 1.0223 151.5 20.6 4.5 137 2007 04 01 10 45 51.962 +01 21 05.77 .02728 1.0230 151.0 20.7 4.7 137 2007 04 02 10 47 29.917 +01 08 47.98 .02787 1.0237 150.5 20.8 4.9 137 2007 04 03 10 49 08.344 +00 56 46.66 .02847 1.0244 150.0 20.8 5.0 136 2007 04 04 10 50 47.185 +00 45 01.52 .02907 1.0251 149.5 20.9 5.1 136 2007 04 05 10 52 26.401 +00 33 32.21 .02969 1.0257 148.9 20.9 5.3 136 2007 04 06 10 54 05.969 +00 22 18.26 .03031 1.0264 148.4 21.0 5.4 135 2007 04 07 10 55 45.884 +00 11 19.11 .03095 1.0271 147.9 21.1 5.6 135 2007 04 08 10 57 26.157 +00 00 34.11 .03160 1.0278 147.4 21.1 5.7 135 2007 04 09 10 59 06.817 -00 09 57.55 .03226 1.0285 146.9 21.2 5.8 134 2007 04 10 11 00 47.912 -00 20 16.78 .03293 1.0292 146.4 21.2 5.9 134 2007 04 11 11 02 29.504 -00 30 24.63 .03361 1.0299 145.8 21.3 6.0 134 2007 04 12 11 04 11.678 -00 40 22.32 .03431 1.0306 145.3 21.4 6.1 133 2007 04 13 11 05 54.533 -00 50 11.20 .03502 1.0314 144.8 21.4 6.2 133 2007 04 14 11 07 38.190 -00 59 52.83 .03574 1.0321 144.3 21.5 6.3 133 2007 04 15 11 09 22.779 -01 09 28.89 .03648 1.0328 143.8 21.5 6.4 133 2007 04 16 11 11 08.440 -01 19 01.17 .03723 1.0335 143.3 21.6 6.5 132 2007 04 17 11 12 55.306 -01 28 31.49 .03799 1.0342 142.8 21.7 6.6 132 2007 04 18 11 14 43.492 -01 38 01.55 .03876 1.0349 142.3 21.7 6.7 132 2007 04 19 11 16 33.078 -01 47 32.82 .03955 1.0356 141.9 21.8 6.8 131 2007 04 20 11 18 24.106 -01 57 06.45 .04036 1.0363 141.4 21.8 6.9 131 2007 04 21 11 20 16.577 -02 06 43.22 .04117 1.0371 140.9 21.9 7.0 131 2007 04 22 11 22 10.455 -02 16 23.55 .04200 1.0378 140.4 21.9 7.0 130 2007 04 23 11 24 05.677 -02 26 07.60 .04284 1.0385 140.0 22.0 7.1 130 2007 04 24 11 26 02.164 -02 35 55.29 .04369 1.0392 139.5 22.1 7.2 130 2007 04 25 11 27 59.828 -02 45 46.39 .04456 1.0399 139.1 22.1 7.3 129 2007 04 26 11 29 58.578 -02 55 40.59 .04543 1.0406 138.6 22.2 7.4 129 2007 04 27 11 31 58.324 -03 05 37.54 .04632 1.0413 138.2 22.2 7.5 129