"Pseudo-MPEC" for HJ0110 = unk P=1.27d, i=17

Created 2017 Sep 18 14:32:24 UT using Find_Orb

Running this orbit forward, the perigee drops to under 100 km in mid-2008. I assume it started hitting drag then and eventually re-entered.

Due to some confusion on my part, the observations on 2005 Sep 18 were initially stored as a separate object, HJ0111. They're really the same object.

Astrometry:
     HJ0110   C2005 06 29.32752 20 42 00.77 +00 15 00.4          12.6 R      678
     HJ0110   C2005 06 29.32872 20 42 12.65 +00 17 05.8          12.3 R      678
     HJ0110   C2005 06 29.32992 20 42 24.82 +00 19 07.9          12.4 R      678
     HJ0110   C2005 06 29.42839 20 55 32.35 +02 38 40.5          12.4 R      678
     HJ0110   C2005 06 29.42955 20 55 40.70 +02 40 06.3          12.4 R      678
     HJ0110   C2005 06 29.44435 20 57 22.09 +02 57 14.1          13.7 R      678
     HJ0110   C2005 06 29.44547 20 57 29.49 +02 58 27.2          14.1 R      678
     HJ0110   C2005 06 29.44773 20 57 44.85 +03 00 58.7          13.0 R      678
     HJ0110   C2005 06 29.45003 20 58 00.94 +03 03 36.4          12.5 R      678
     HJ0110   C2005 06 29.45121 20 58 09.06 +03 04 56.0          12.5 R      678
     HJ0110   C2005 06 29.45242 20 58 17.37 +03 06 20.7          12.8 R      678
     HJ0110   C2005 07 02.37286 22 14 41.66 +08 34 04.0          14.2 R      678
     HJ0110   C2005 07 02.37413 22 14 50.91 +08 35 11.4          14.3 R      678
     HJ0110   C2005 07 02.37535 22 14 59.33 +08 36 11.4          14.3 R      678
     HJ0110   C2005 08 17.29266 23 30 25.09 +13 04 23.0          12.8 R      678
     HJ0110   C2005 08 17.29384 23 30 44.58 +13 05 17.8          13.1 R      678
     HJ0110   C2005 08 17.29503 23 31 04.41 +13 06 10.6          12.9 R      678
     HJ0110   C2005 08 17.33892 23 44 27.87 +13 37 19.8          12.8 R      678
     HJ0110   C2005 08 17.34012 23 44 53.96 +13 38 09.5          12.6 R      678
     HJ0110   C2005 08 17.34134 23 45 20.47 +13 38 51.6          12.7 R      678
     HJ0110   C2005 08 17.35940 23 52 00.34 +13 50 28.3          11.7 R      678
     HJ0110   C2005 08 17.36060 23 52 29.66 +13 51 06.6          11.2 R      678
     HJ0110   C2005 08 17.36182 23 52 58.53 +13 51 56.0          12.1 R      678
     HJ0110   C2005 08 17.36718 23 55 09.23 +13 55 02.9          11.5 R      678
     HJ0110   C2005 08 17.36836 23 55 38.78 +13 55 35.9          11.0 R      678
     HJ0110   C2005 08 17.36955 23 56 11.16 +13 56 26.1          11.5 R      678
HJ0111        C2005 08 18.18798 22 12 36.10 +09 25 47.6          13.6 R      678
HJ0111        C2005 08 18.18914 22 12 43.97 +09 26 38.7          13.5 R      678
HJ0111        C2005 08 18.19032 22 12 52.18 +09 27 35.8          13.6 R      678
HJ0111        C2005 08 18.22666 22 16 52.48 +09 54 25.7          12.4 R      678
HJ0111        C2005 08 18.22786 22 17 00.35 +09 55 19.1          12.9 R      678
HJ0111        C2005 08 18.22906 22 17 07.92 +09 56 13.5          12.7 R      678
HJ0111        C2005 08 18.27508 22 21 46.85 +10 28 00.7          13.5 R      678
HJ0111        C2005 08 18.27629 22 21 54.11 +10 28 48.8          13.3 R      678
HJ0111        C2005 08 18.27748 22 22 01.11 +10 29 36.4          13.1 R      678
     HJ0110   C2005 08 27.25491 22 44 35.39 +11 44 20.5          12.8 R      678
     HJ0110   C2005 08 27.25612 22 44 44.49 +11 45 07.0          12.9 R      678
     HJ0110   C2005 08 27.25733 22 44 53.42 +11 45 53.8          12.9 R      678
     HJ0110   C2005 08 27.30861 22 51 19.09 +12 16 34.9          13.6 R      678
     HJ0110   C2005 08 27.30983 22 51 28.50 +12 17 15.0          13.5 R      678
     HJ0110   C2005 08 27.31102 22 51 37.85 +12 17 56.1          13.5 R      678
     HJ0110   C2005 08 28.21810 21 51 55.39 +08 49 26.2          13.2 R      678
     HJ0110   C2005 08 28.21925 21 52 01.46 +08 50 30.8          13.0 R      678
     HJ0110   C2005 08 28.22046 21 52 08.95 +08 51 16.5          13.1 R      678
     HJ0110   C2005 08 28.26844 21 56 26.28 +09 25 47.6          13.0 R      678
     HJ0110   C2005 08 28.26966 21 56 32.60 +09 26 37.0          13.0 R      678
     HJ0110   C2005 08 28.27089 21 56 38.96 +09 27 26.2          12.9 R      678
     HJ0110   C2005 08 29.18915 20 48 56.05 +03 34 47.2          13.5 R      678
     HJ0110   C2005 08 29.19032 20 49 10.19 +03 37 07.5          13.7 R      678
     HJ0110   C2005 08 29.19150 20 49 24.67 +03 39 13.3          13.2 R      678
     HJ0110   C2005 08 31.30556 23 54 49.37 +13 51 24.6          13.0 R      678
     HJ0110   C2005 08 31.30677 23 55 16.54 +13 52 00.7          13.1 R      678
     HJ0110   C2005 08 31.30797 23 55 44.08 +13 52 36.5          13.2 R      678
     HJ0110   C2005 08 31.35587 00 17 46.89 +14 09 15.6          11.2 R      678
     HJ0110   C2005 08 31.35714 00 18 30.04 +14 09 25.0          11.1 R      678
     HJ0110   C2005 08 31.35833 00 19 12.82 +14 09 30.7          10.9 R      678
     HJ0110   C2005 09 06.20841 22 13 31.42 +10 25 40.9          13.4 R      678
     HJ0110   C2005 09 06.20961 22 13 38.23 +10 26 25.9          13.6 R      678
     HJ0110   C2005 09 06.21080 22 13 45.05 +10 27 13.7          13.7 R      678
     HJ0110   C2005 09 10.26678 22 58 16.56 +12 45 39.8          12.7 R      678
     HJ0110   C2005 09 10.26793 22 58 26.13 +12 46 17.2          12.6 R      678
     HJ0110   C2005 09 10.26910 22 58 35.89 +12 46 54.4          12.6 R      678
     HJ0110   C2005 09 11.18929 21 59 25.95 +09 44 03.5          13.6 R      678
     HJ0110   C2005 09 11.19046 21 59 32.24 +09 44 52.5          13.0 R      678
     HJ0110   C2005 09 16.10814 21 37 32.90 +07 57 44.0          13.2 R      678
     HJ0110   C2005 09 16.10932 21 37 42.43 +07 59 00.0          12.8 R      678
     HJ0110   C2005 09 16.11048 21 37 51.42 +08 00 09.5          12.7 R      678
     HJ0110   C2005 09 16.11274 21 38 09.24 +08 02 31.0          12.4 R      678
     HJ0110   C2005 09 16.11389 21 38 18.27 +08 03 39.9          13.2 R      678
     HJ0110   C2005 09 16.11505 21 38 26.70 +08 04 49.2          12.8 R      678
     HJ0110   C2005 09 21.51422122 28 10.14 +16 16 09.1          12.8 R      413
     HJ0110   C2005 09 21.51481022 28 13.39 +16 16 29.4          12.9 R      413
     HJ0110   C2005 09 21.51599222 28 19.72 +16 17 08.8          12.9 R      413
     HJ0110   C2005 09 21.54383222 30 52.033+16 32 06.89         12.6 R      413
     HJ0110   C2005 09 21.54500522 30 58.585+16 32 43.32         12.7 R      413
     HJ0110   C2005 09 21.54618322 31 05.154+16 33 19.63         12.8 R      413
     HJ0110   C2005 09 21.60641422 37 06.802+17 01 42.76         12.5 R      413
     HJ0110   C2005 09 21.60759022 37 14.526+17 02 13.14         12.7 R      413
     HJ0110   C2005 09 21.60876522 37 22.277+17 02 43.56         12.8 R      413
     HJ0110   C2005 09 25.17575 22 08 18.73 +10 43 14.2          13.4 R      678
     HJ0110   C2005 09 25.17694 22 08 25.38 +10 44 03.9          13.2 R      678
     HJ0110   C2005 09 25.17813 22 08 31.75 +10 44 49.7          13.6 R      678
     HJ0110   C2005 09 29.17258 22 43 59.36 +12 23 13.7          12.8 R      678
     HJ0110   C2005 09 29.17377 22 44 07.18 +12 23 51.8          12.7 R      678
     HJ0110   C2005 10 03.18164 23 31 18.11 +13 42 07.5          13.0 R      678
     HJ0110   C2005 10 03.18280 23 31 31.85 +13 42 37.9          13.1 R      678
     HJ0110   C2005 10 03.18398 23 31 45.80 +13 43 09.0          13.1 R      678
     HJ0110   C2005 10 05.12326 21 35 19.37 +08 52 10.8          13.4 R      678
     HJ0110   C2005 10 05.12443 21 35 28.17 +08 53 17.3          13.6 R      678
     HJ0110   C2005 10 05.12560 21 35 36.71 +08 54 25.2          13.7 R      678
     HJ0110   C2005 10 08.16318 23 09 43.96 +13 21 33.2          12.8 R      678
     HJ0110   C2005 10 08.16436 23 09 53.75 +13 22 11.2          12.8 R      678
     HJ0110   C2005 10 08.16556 23 10 03.83 +13 22 42.2          12.8 R      678
     HJ0110   C2005 10 22.14073 23 19 29.25 +13 45 43.9          13.0 R      678
     HJ0110   C2005 10 22.14192 23 19 39.69 +13 46 11.3          12.8 R      678
     HJ0110   C2005 10 22.14311 23 19 50.58 +13 46 38.5          13.0 R      678
     HJ0110   C2005 10 26.20697 01 06 34.84 +13 21 35.2          10.8 R      678
     HJ0110   C2005 10 26.20813 01 07 32.36 +13 19 55.4          10.5 R      678
     HJ0110   C2005 10 26.20931 01 08 29.92 +13 18 13.7          10.7 R      678
     HJ0110   C2005 10 27.11224 22 59 54.29 +13 21 11.1          13.5 R      678
     HJ0110   C2005 10 27.11341 23 00 02.40 +13 21 41.8          13.5 R      678
     HJ0110   C2005 10 27.11460 23 00 10.78 +13 22 08.6          13.4 R      678
     HJ0110   C2005 11 01.09531 22 44 26.49 +12 59 12.0          12.9 R      678
     HJ0110   C2005 11 01.09648 22 44 33.73 +12 59 40.7          12.8 R      678
     HJ0110   C2006 10 12.19984 00 47 49.82 +08 27 37.4         x13.5 R      678
     HJ0110   C2006 10 12.20102 00 47 57.69 +08 26 56.2         x13.0 R      678
     HJ0110   C2006 10 12.20224 00 48 05.82 +08 26 16.4         x12.8 R      678
     HJ0110   C2006 10 12.26136 00 54 18.39 +07 50 07.3         x12.7 R      678
     HJ0110   C2006 10 12.26258 00 54 25.66 +07 49 20.4         x12.9 R      678
     HJ0110   C2006 10 12.26381 00 54 33.19 +07 48 30.7         x12.3 R      678
     HJ0110   C2006 10 12.26565 00 54 44.93 +07 47 11.2         x12.8 R      678
     HJ0110   C2006 10 12.26807 00 54 59.72 +07 45 34.5         x12.3 R      678
     HJ0110   C2006 10 12.27355 00 55 33.12 +07 41 46.7         x12.5 R      678
     HJ0110   C2006 10 12.27469 00 55 40.38 +07 40 56.5         x12.4 R      678
     HJ0110   C2006 10 12.27593 00 55 48.01 +07 40 03.7         x12.6 R      678
     HJ0110   C2006 10 12.27931 00 56 08.40 +07 37 40.6         x13.6 R      678
     HJ0110   C2006 10 12.28054 00 56 16.15 +07 36 45.8         x13.9 R      678
     HJ0110   C2006 10 21.18819 01 10 09.91 +06 49 27.5         x12.9 R      678
     HJ0110   C2006 10 21.18935 01 10 18.67 +06 48 36.4         x12.8 R      678
     HJ0110   C2006 10 21.19055 01 10 27.83 +06 47 42.4         x13.1 R      678
     HJ0110   C2006 10 22.15497 00 15 25.01 +09 58 51.1         x13.3 R      678
     HJ0110   C2006 10 22.15613 00 15 33.72 +09 58 18.3         x13.1 R      678
     HJ0110   C2006 10 22.15732 00 15 42.56 +09 57 45.4         x13.3 R      678
     HJ0110   C2006 10 22.16570 00 16 42.18 +09 53 53.8         x13.3 R      678
     HJ0110   C2006 10 22.16688 00 16 50.05 +09 53 22.5         x13.8 R      678
     HJ0110   C2006 10 22.16808 00 16 58.22 +09 52 49.8         x13.5 R      678
     HJ0110   C2006 10 22.26638 00 27 01.72 +09 03 25.8         x12.3 V      703
     HJ0110   C2006 10 22.26911 00 27 18.10 +09 01 40.9         x12.3 V      703
     HJ0110   C2006 10 22.27183 00 27 34.45 +08 59 55.8         x12.4 V      703
     HJ0110   C2006 10 22.27456 00 27 50.76 +08 58 10.5         x12.5 V      703
     HJ0110   C2006 10 23.11514 22 42 32.99 +12 39 33.8         x12.4 R      678
     HJ0110   C2006 10 23.11630 22 43 05.03 +12 39 19.5         x11.6 R      678
     HJ0110   C2006 10 23.11748 22 43 39.00 +12 39 12.4         x11.1 R      678
     HJ0110   C2006 10 27.15165 23 58 59.42 +10 33 11.1         x13.1 R      678
     HJ0110   C2006 10 27.15281 23 59 09.64 +10 32 37.1         x13.3 R      678
     HJ0110   C2006 10 27.15401 23 59 19.44 +10 32 02.7         x13.6 R      678

Station data:
(413) Siding Spring Observatory  (S31.277054 E149.066080)  Australia/NSW.
   Observers G. J. Garradd, R. H. McNaught. Measurer R. H. McNaught. 1.0-m
   f/8 reflector + CCD.
(678) Fountain Hills  (N33.635873 W111.740300)  US/Arizona.  Observers C. W.
   Juels, P. R. Holvorcem. Measurer PinPoint Engine. 0.07-m f/2.8 refractor +
   CCD.
(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.

Orbital elements:  HJ0110 = unk P=1.27d, i=17
   Perigee 2005 Aug 31.489721 +/- 1.46e-5 TT = 11:45:11 (JD 2453613.989721)
Epoch 2005 Aug 31.0 TT; AMR 0.038378 +/- 0.000382 m2/kg      Gray
M 221.05212 +/- 0.0041              (J2000 equator)
n 283.72852972 +/- 3.82e-5          Peri.  222.49173 +/- 0.0010
a 49507.1775 +/- 0.00444            Node   289.74953 +/- 0.0006
e   0.8622320 +/- 4.14e-6           Incl.   17.37843 +/- 0.00016
P1827.06m/1.269d           H 28.6   G  0.15   U  5.9
q 6820.50084 +/- 0.205    Q 92193.8543 +/- 0.209
104 of 136 observations 2005 June 29-Nov. 1; mean residual 8".439
Residuals in arcseconds: 
050629 678 3.51- 2.23+    050828 678 2.76+ 2.30-    051008 678 7.08+ .654+
050629 678 .248+ 4.96+    050829 678 1.78- 7.28-    051022 678 5.63+ 2.10+
050629 678 9.36+ 4.99+    050829 678 3.02- .297+    051022 678 4.15+ 2.79+
050629 678 3.40+ 5.63+    050829 678 .325+ 6.83-    051022 678 9.00+ 3.45+
050629 678 7.71+ 8.68+    050831 678 22.5- .237-    051026 678 23.4+ .270-
050629 678 2.97+ 7.21+    050831 678 20.7- .425-    051026 678 35.6+ 1.77-
050629 678 .349- 4.36+    050831 678 13.6- .265-    051026 678 20.8+ .019+
050629 678 .254- 3.42+    050831 678 27.4- .414+    051027 678 2.73- .531+
050629 678 7.21+ 7.08+    050831 678 37.4- .083+    051027 678 2.18- 2.10+
050629 678 9.20+ 8.08+    050831 678 20.6- 2.17-    051027 678 .312+ .558-
050629 678 11.1+ 12.5+    050906 678 1.12- 6.62+    051101 678 1.26- .768+
050702 678 10.8- 4.81-    050906 678 .060- 4.46+    051101 678 1.06+ 1.44-
050702 678 .775- .223+    050906 678 2.19+ 5.63+    061012 678(1738-  302+)
050702 678 2.08+ .356+    050910 678 9.56- 2.27-    061012 678(1738-  300+)
050817 678 13.9- 4.70-    050910 678 3.89- .554-    061012 678(1737-  302+)
050817 678 9.72- 2.17-    050910 678 1.95+ .476+    061012 678(1804-  340+)
050817 678 4.30- 2.00-    050911 678 1.83+ .605-    061012 678(1809-  344+)
050817 678 9.57+ .241+    050911 678 2.89- 2.06-    061012 678(1811-  345+)
050817 678 27.7+ 1.73+    050916 678 18.0- 10.7-    061012 678(1807-  342+)
050817 678 43.1+ 4.98-    050916 678 12.1- 6.60-    061012 678(1811-  347+)
050817 678 1.10+ 1.63-    050916 678 11.2- 7.48-    061012 678(1823-  352+)
050817 678 10.5+ 7.14-    050916 678 3.11- 2.34-    061012 678(1820-  351+)
050817 678 2.33+ 1.94-    050916 678 1.35+ 2.45-    061012 678(1822-  352+)
050817 678 26.7- 4.95-    050916 678 3.60- 2.50-    061012 678(1833-  356+)
050817 678 33.1- 12.8-    050921 413 2.00- 2.04-    061012 678(1832-  355+)
050817 678 6.35- 3.33-    050921 413 .989- 1.53-    061021 678(1982-  423+)
050818 678 3.01- .936-    050921 413 1.77- 1.76-    061021 678(1980-  422+)
050818 678 5.51- 2.70-    050921 413 1.69- 1.50-    061021 678(1976-  420+)
050818 678 4.66- .709+    050921 413 1.45- 1.40-    061022 678(1976-  264+)
050818 678 .550+ 3.24-    050921 413 1.56- 1.45-    061022 678(1969-  263+)
050818 678 4.61+ 1.74-    050921 413 2.33- .945-    061022 678(1963-  263+)
050818 678 4.51+ .843+    050921 413 2.40- .912-    061022 678(1948-  265+)
050818 678 3.96- 4.10-    050921 413 2.45- .711-    061022 678(1952-  268+)
050818 678 2.13- 4.18-    050925 678 1.25+ 3.80-    061022 678(1953-  269+)
050818 678 2.29- 3.86-    050925 678 2.68+ 1.21+    061022 703(1854-  284+)
050827 678 4.49+ 1.46-    050925 678 .174+ 2.50+    061022 703(1850-  284+)
050827 678 6.75+ .951-    050929 678 5.00- 1.72-    061022 703(1847-  284+)
050827 678 6.49+ .041-    050929 678 2.70- .904-    061022 703(1845-  285+)
050827 678 2.05- 1.82-    051003 678 1.76+ 3.53+    061023 678(6072-  167+)
050827 678 3.37- 2.89-    051003 678 1.76+ 3.41+    061023 678(6011-  170+)
050827 678 2.46- 1.83-    051003 678 .779+ 3.64+    061023 678(5925-  181+)
050828 678 2.89- 2.32-    051005 678 6.95+ 4.12+    061027 678(2332-  275+)
050828 678 9.38- 9.01+    051005 678 7.88+ 3.67+    061027 678(2319-  273+)
050828 678 .465+ 1.17-    051005 678 5.44+ 4.96+    061027 678(2317-  273+)
050828 678 2.13+ 2.55-    051008 678 7.45+ 2.91-
050828 678 2.48+ 2.22-    051008 678 6.44+ 2.57+

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta   r     elong  mag " sig PA
---- -- -- --  ------------   ------------  ------ ------ -----  --- ---- ---
2005 11 01 00  22 23 32.131   +13 49 34.61    91761 0.9929 121.7 14.6  .97  74
2005 11 01 01  22 30 46.078   +14 05 36.97    91873 0.9929 123.4 14.5  .90  74
2005 11 01 02  22 38 02.475   +14 20 53.64    91461 0.9929 125.1 14.5  .85  75
2005 11 01 03  22 45 26.406   +14 35 32.90    90519 0.9929 126.9 14.4  .83  75
2005 11 01 04  22 53 03.417   +14 49 41.35    89039 0.9929 128.7 14.3  .83  76
2005 11 01 05  23 00 59.919   +15 03 24.09    87003 0.9929 130.6 14.2  .87  77
2005 11 01 06  23 09 23.734   +15 16 44.58    84388 0.9929 132.6 14.1  .95  79
2005 11 01 07  23 18 24.917   +15 29 44.25    81161 0.9929 134.8 13.9  1.1  80
2005 11 01 08  23 28 17.070   +15 42 21.38    77275 0.9928 137.1 13.8  1.3  82
2005 11 01 09  23 39 19.614   +15 54 28.67    72671 0.9928 139.8 13.6  1.6  84
2005 11 01 10  23 52 02.014   +16 05 47.78    67264 0.9928 142.8 13.3  2.1  85
2005 11 01 11  00 07 12.397   +16 15 36.03    60935 0.9928 146.4 13.0  2.9  87
2005 11 01 12  00 26 17.364   +16 22 09.81    53510 0.9927 150.9 12.6  4.3  89
2005 11 01 13  00 52 15.862   +16 20 44.15    44711 0.9927 157.1 12.0  6.9  91
2005 11 01 14  01 32 49.470   +15 54 40.43    34057 0.9926 166.8 11.1 13.5  94
2005 11 01 15  02 58 39.789   +13 26 23.69    20602 0.9925 172.3 Sha  41.8 100
2005 11 01 16  11 38 54.248   -15 54 17.99     7278 0.9923  40.6 13??  370  94
2005 11 01 17  18 27 37.198   -00 35 41.06    22371 0.9923  60.9 14.2 40.5  73
2005 11 01 18  19 38 55.801   +04 34 44.92    35425 0.9923  79.4 14.1 16.1  74
2005 11 01 19  20 14 25.192   +06 59 57.47    45825 0.9923  88.5 14.2  9.4  74
2005 11 01 20  20 37 46.983   +08 29 34.57    54443 0.9924  94.5 14.4  6.4  74
2005 11 01 21  20 55 16.160   +09 32 51.62    61728 0.9924  98.9 14.5  4.7  74
2005 11 01 22  21 09 22.225   +10 21 15.36    67940 0.9924 102.4 14.5  3.7  75
2005 11 01 23  21 21 18.931   +11 00 16.43    73247 0.9924 105.4 14.6  3.0  75
2005 11 02 00  21 31 47.881   +11 32 56.42    77762 0.9925 107.9 14.6  2.4  75
2005 11 02 01  21 41 14.875   +12 01 04.67    81566 0.9925 110.3 14.7  2.0  75
2005 11 02 02  21 49 57.123   +12 25 51.57    84718 0.9925 112.4 14.7  1.7  74
2005 11 02 03  21 58 06.831   +12 48 04.95    87262 0.9925 114.4 14.7  1.5  74
2005 11 02 04  22 05 53.147   +13 08 18.64    89229 0.9925 116.3 14.7  1.3  74
2005 11 02 05  22 13 23.303   +13 26 57.45    90644 0.9925 118.1 14.7  1.2  74