<10=less than 10 LD from Earth

EBN Timeline for December 2013

<SI=inside Earth SOI (sphere of influence)
M<1=less than 1 LD from the Moon
E<1=less than 1 LD from Earth (intruder)
LD = lunar distance (average Earth-Moon distance)
31 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
22282014 AF5 enters Earth SOI32001503discovery MPEC issued for 2013 YM48
01572014 AA enters Earth SOI31001446discovery MPEC issued for 2013 YJ48
08092013 YV102 designation credited to MLS at 23.38 LD inbound, V=20.3 reported, elon. 161.2°
30 Dec. 2013
UTEvents
07132013 YM48 designation credited to MLS at 23.63 LD inbound, V=20.7 reported, elon. 168.6°
29 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
13552014 AF5 enters 10-LD bubble300009382013 YJ48 designation credited to PS1 at 19.06 LD outbound, w=20.6 reported, elon. 155.1°
28 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
10152013 YB exits 10-LD bubble20001403discovery MPEC issued for 2013 YQ2
1403discovery MPEC issued for 2013 YL2
27 Dec. 2013
UTEvents
10292011 YD29 closest Earth approach = 6.49 LD - Note: JPL reports an approach to 6.49 LD (6.13 minimum) with an uncertainty of +/- 11 hours and 27 minutes.
26 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
10332013 YJ48 exits 10-LD bubble30000524distant 136617 1994 CC observed first, by PS1 at 524.87 LD, w=20.6 reported, elon. 72.0°
24 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
19102013 YQ2 exits 10-LD bubble40002106discovery MPEC issued for 2013 YD
16492013 YB exits Earth SOI500012222013 YQ2 designation credited to CSS at 9.36 LD outbound, V=17.1 reported, elon. 128.5°
08522014 AA enters 10-LD bubble510004382013 YJ48 closest Earth approach = 6.33 LD
00182013 YB exits Earth-Moon system4100
23 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
13442013 YB more than one LD from Moon410123042013 YL2 designation credited to Oukaimeden Obs. at 50.33 LD inbound, mag 20.0 reported, elon. 153.0°
10302013 YB within one LD of Moon41112249discovery MPEC issued for 2013 YB
01222013 YB enters Earth-Moon system410112502013 YB closest Earth approach = 0.07 LD
12222013 YB closest lunar approach = 0.98 LD
08542013 YB last observed optically, by CSS at 0.36 LD inbound, V=17.1 reported
05322013 YD designation credited to CSS at 16.16 LD outbound, V=17.4 reported, elon. 162.6°
05032013 YB designation credited to CSS at 0.69 LD inbound, V=18.5 reported, elon. 160.8°
22 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
09242011 YD29 enters 10-LD bubble410011182013 WZ44 last observed optically, by Tholen team/Mauna Kea at 83.06 LD outbound, R=23.9 reported
08512013 YB enters Earth SOI3100
21 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
22392013 YJ48 enters 10-LD bubble300004492013 YQ2 closest Earth approach = 4.25 LD - Note: JPL reports an approach to 4.25 LD (4.24 minimum) .
05532013 YD exits 10-LD bubble2000
20 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1
18122013 XH22 exits 10-LD bubble3000
18 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
19522013 XH22 exits Earth SOI400011562013 XH22 closest Earth approach = 1.93 LD
15232013 YB enters 10-LD bubble410006052013 XH22 closest lunar approach = 1.91 LD
09012013 YD exits Earth SOI310005002013 XH22 last observed by radar, from DSS-14 at 2.30 LD inbound, V=16.91 calculated
03592013 XH22 enters Earth SOI320003322013 YD closest Earth approach = 2.30 LD
02102013 XH22 first observed by radar, from DSS-14 at 2.62 LD inbound, V=16.93 calculated
00132013 XH22 last observed optically, by Sandlot Obs. at 2.87 LD inbound, R=16.5 reported
17 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1
22042013 YD enters Earth SOI3100
19322013 XS21 exits 10-LD bubble3000
14592013 XU21 exits 10-LD bubble4000
14402013 YQ2 enters 10-LD bubble5000
16 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
07272013 XY8 exits 10-LD bubble40002307discovery MPEC issued for 2013 XH22
05392013 XH22 enters 10-LD bubble500005002013 NJ last observed by radar, from Arecibo at 31.44 LD outbound, V=17.61 calculated
15 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1
06232013 XT21 exits 10-LD bubble4000
01132013 YD enters 10-LD bubble5000
14 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
02362013 XH17 exits 10-LD bubble40001242discovery MPEC issued for 2013 XU21
1233discovery MPEC issued for 2013 XT21
1226discovery MPEC issued for 2013 XS21
10402013 XH17 last observed optically, by Tenagra II Obs. at 10.55 LD outbound, R=19.6 reported
10272013 XU21 last observed optically, by Tenagra II Obs. at 6.15 LD outbound, R=18.7 reported
08192013 XU21 closest Earth approach = 6.15 LD
07412013 XT21 last observed optically, by MLS at 7.15 LD outbound, V=19.8 reported
05432013 XH22 designation credited to MLS at 18.60 LD inbound, V=19.5 reported, elon. 176.3°
03192013 XS21 last observed optically, by Great Shefford Obs. at 3.73 LD outbound, R=21.4 reported
13 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
08412013 XS21 exits Earth SOI500005562013 XU21 designation credited to CSS at 6.70 LD inbound, V=19.7 reported, elon. 153.1°
05532013 XT21 designation credited to CSS at 3.97 LD outbound, V=18.4 reported, elon. 149.2°
05252013 XY8 last observed optically, by Schiaparelli Obs. at 4.07 LD outbound, R=20.4 reported, elon. 77.8°
12 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
16352013 XT21 exits Earth SOI510011312013 XS21 designation credited to CSS at 0.90 LD outbound, V=18.20 calculated, elon. 124.7°
12542013 XS21 exits Earth-Moon system520000142013 XT21 closest lunar approach = 1.72 LD
03272013 XY8 exits Earth SOI5201
11 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
22112013 XS21 more than one LD from Moon530123492013 XT21 closest Earth approach = 1.13 LD
09572013 XS21 enters Earth-Moon system531123252013 XS21 closest Earth approach = 0.19 LD
08302013 XS21 within one LD of Moon53102105discovery MPEC issued for 2013 XH17
07032013 XT21 enters Earth SOI530015242013 XS21 closest lunar approach = 0.89 LD
02012013 XU21 enters 10-LD bubble520011162013 XY8 closest Earth approach = 1.98 LD
07102013 XY8 last observed by radar, from DSS-14 at 2.01 LD inbound, V=14.97 calculated
03182013 XY8 closest lunar approach = 2.42 LD
00262013 XH17 closest Earth approach = 7.10 LD
10 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
19052013 XY8 enters Earth SOI420013592013 WX44 last observed optically, by Tholen team/Mauna Kea at 45.66 LD outbound, R=22.0 reported
14102013 XS21 enters Earth SOI410012502013 VD17 last observed optically, by Tholen team/Mauna Kea at 81.40 LD outbound, R=24.8 reported
11222013 XF4 last observed optically, by Tholen team/Mauna Kea at 46.41 LD outbound, R=22.6 reported
08572013 XH17 designation credited to CSS at 7.25 LD inbound, V=18.4 reported, elon. 140.8°
03302013 XY8 first observed by radar, from DSS-14 at 3.33 LD inbound, V=15.46 calculated
8 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
17162013 XT21 enters 10-LD bubble40001222discovery MPEC issued for 2013 XY8
7 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
22212013 XH17 enters 10-LD bubble30001342discovery MPEC issued for 2013 XF4
10532013 SU24 last observed optically, by Trueblood/KPNO at 69.72 LD outbound, R=22.9 reported
05432013 VJ13 last observed optically, by Trueblood/KPNO at 155.56 LD outbound, R=23.3 reported
04472013 WM last observed optically, by Trueblood/KPNO at 145.67 LD outbound, R=22.8 reported
04042013 XY8 designation credited to CSS at 8.94 LD inbound, V=17.7 reported, elon. 148.3°
0014discovery MPEC issued for 2013 WZ107
6 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
15192013 XY8 enters 10-LD bubble200010292013 WZ107 last observed optically, by Spacewatch 1.8m at 24.64 LD outbound, R=22.3 reported
03082013 XS21 enters 10-LD bubble100009182013 WY last observed optically, by Trueblood/KPNO at 13.00 LD outbound, R=20.5 reported
4 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1
18342013 WV43 exits 10-LD bubble0000
3 Dec. 2013
UTEvents
11002013 VW13 last observed optically, by Tholen team/Mauna Kea at 96.78 LD outbound, R=24.0 reported
07122013 XF4 designation credited to PS1 at 24.83 LD outbound, w=21.0 reported, elon. 162.5°
06522013 XF4 observed first, by PS1 at 24.78 LD outbound, w=21.6 reported, elon. 162.5°
04032013 WV43 closest Earth approach = 9.49 LD
2 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1
11432013 NJ exits 10-LD bubble1000
11202013 WY exits 10-LD bubble2000
1 Dec. 2013
UTBoundary Transitions<10<SIM<1E<1Events
13442013 WV43 enters 10-LD bubble30002112distant 436724 2011 UW158 last observed optically, by Schiaparelli Obs. at 310.69 LD, R=21 reported
04142013 WH25 exits 10-LD bubble2000


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