|
| 28 Dec. 2009 |
| UTC | Events |
|
| 0741 | 2010 AR1 closest Earth approach = 4.43 LD |
|
| 26 Dec. 2009 |
| UTC | Events |
|
| 2105 | 2010 AH3 closest Earth approach = 4.33 LD - Note: JPL reports an approach uncertainty of 24 minutes. |
| 0631 | 2009 WG106 last observed optically, by Spacewatch 1.8m at 39.74 LD outbound, V=21.78 calculated |
|
| 25 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 0848 | 2009 XO2 exits 10-LD bubble | 3 | 0 | 0 | 0 | 1938 | 2009 YR last observed optically, by Great Shefford Obs. at 4.32 LD outbound, R=20.1 reported |
| 0823 | 2009 YR closest Earth approach = 4.31 LD |
|
| 23 Dec. 2009 |
| UTC | Events |
|
| 0123 | 2009 XO2 closest Earth approach = 8.59 LD |
|
| 22 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 0235 | 2009 XR1 exits 10-LD bubble | 4 | 0 | 0 | 0 | 0850 | 2009 YS last observed optically, by Sandlot Obs. at 10.41 LD outbound, R=19.0 reported |
|
| 21 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 2325 | 2009 YS exits 10-LD bubble | 5 | 0 | 0 | 0 |
| 2214 | 2010 AR1 enters 10-LD bubble | 6 | 0 | 0 | 0 |
| 0959 | 2010 AH3 enters 10-LD bubble | 5 | 0 | 0 | 0 |
|
| 20 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 1809 | 2009 XO2 enters 10-LD bubble | 4 | 0 | 0 | 0 |
| 0552 | 2009 XZ6 exits 10-LD bubble | 3 | 0 | 0 | 0 |
|
| 19 Dec. 2009 |
| UTC | Events |
|
| 0859 | 2009 YS discovered by CSS at 7.29 LD outbound, V=18.2 reported, elon. 128.6° |
| 0634 | 2009 YR discovered by MLS at 5.81 LD inbound, V=19.6 reported, elon. 166.1° |
|
| 18 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 0051 | 2009 XQ2 exits 10-LD bubble | 4 | 0 | 0 | 0 |
|
| 17 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 1407 | 2009 XR1 exits Earth's Hill sphere | 5 | 0 | 0 | 0 | 0351 | 2001 SG286 last observed optically, by ARO Westfield at 257.76 LD outbound, V=21.9 reported |
|
| 16 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 0038 | 2009 YS exits Earth's Hill sphere | 5 | 1 | 0 | 0 | 0051 | 2009 XQ2 closest Earth approach = 5.71 LD - Note: JPL reports an approach uncertainty of 1 hour and 50 minutes. |
|
| 15 Dec. 2009 |
| UTC | Events |
|
| 1413 | 2009 XR1 closest lunar approach = 2.62 LD |
| 0809 | 2009 XZ6 discovered by CSS at 6.24 LD outbound, V=17.5 reported, elon. 165.9° |
| 0544 | 2009 XR1 closest Earth approach = 1.95 LD - Note: JPL reports an approach uncertainty of 1 hour and 32 minutes. |
|
| 14 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 1433 | 2009 XP2 exits 10-LD bubble | 5 | 2 | 0 | 0 |
| 0050 | 2009 XQ2 enters 10-LD bubble | 6 | 2 | 0 | 0 |
|
| 13 Dec. 2009 |
| UTC | Events |
|
| 0713 | 2009 XQ2 last observed optically, by CSS at 12.59 LD inbound, V=19.0 reported |
| 0447 | 2009 XQ2 discovered by CSS at 12.97 LD inbound, V=19.7 reported, elon. 140.3° |
| 0347 | 2009 XZ6 closest Earth approach = 5.71 LD |
| 0316 | 2009 XP2 discovered by CSS at 9.02 LD outbound, V=18.1 reported, elon. 142.0° |
|
| 12 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 2130 | 2009 XR1 enters Earth's Hill sphere | 5 | 2 | 0 | 0 | 1600 | 2009 XO2 discovered by SSS at 24.72 LD inbound, R=19.1 reported, elon. 133.1° |
| 1503 | 2009 YS closest Earth approach = 1.46 LD - Note: JPL reports an approach uncertainty of 6 minutes. |
| 0903 | 2009 YS closest lunar approach = 2.06 LD |
|
| 11 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 1429 | 2009 YR enters 10-LD bubble | 5 | 1 | 0 | 0 | 0858 | 2009 XR1 last observed optically, by Tenagra II Obs. at 5.89 LD inbound, R=21.8 reported |
| 0330 | 2009 XR1 discovered by MLS at 6.20 LD inbound, V=21.4 reported, elon. 152.3° |
|
| 10 Dec. 2009 |
| UTC | Events |
|
| 2244 | 2009 XP2 closest Earth approach = 8.44 LD |
|
| 9 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 0517 | 2009 YS enters Earth's Hill sphere | 4 | 1 | 0 | 0 | 0658 | 2009 WR52 last observed optically, by Tholen team/Mauna Kea at 28.36 LD outbound, R=23.7 reported |
|
| 8 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 1015 | 2009 XR1 enters 10-LD bubble | 4 | 0 | 0 | 0 |
| 0245 | 2009 WA52 exits 10-LD bubble | 3 | 0 | 0 | 0 |
|
| 7 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 0607 | 2009 XP2 enters 10-LD bubble | 4 | 0 | 0 | 0 |
|
| 5 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 2156 | 2009 XZ6 enters 10-LD bubble | 3 | 0 | 0 | 0 | 0412 | 2009 WA52 closest Earth approach = 8.25 LD |
| 1136 | 2009 WV25 exits 10-LD bubble | 2 | 0 | 0 | 0 |
|
| 3 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 |
| 0510 | 2009 YS enters 10-LD bubble | 3 | 0 | 0 | 0 |
|
| 2 Dec. 2009 |
| UTC | Boundary Transitions | <10 | <HS | M<1 | E<1 | | Events |
| 1512 | 2009 WV25 exits Earth's Hill sphere | 2 | 0 | 0 | 0 | 2210 | 2009 WV25 first observed by radar, from DSS-14 at 4.40 LD outbound, V=nil |
| 0607 | 2009 WA52 enters 10-LD bubble | 2 | 1 | 0 | 0 |
| 0224 | 2009 WE106 exits 10-LD bubble | 1 | 1 | 0 | 0 |
|
| 1 Dec. 2009 |
| UTC | Events |
|
| 1353 | 2009 WV25 closest Earth approach = 2.91 LD |
| 0305 | 2009 WV25 last observed optically, by ARO Westfield at 3.11 LD inbound, V=16.2 reported |
| 0116 | 2009 WA52 last observed optically, by Great Shefford Obs. at 11.48 LD inbound, R=19.2 reported |