<10=less than 10 LD from Earth

EBN Timeline for February 2011

<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)
28 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
20142011 DQ exits 10-LD bubble1100017022011 ED12 closest Earth approach = 3.96 LD
20012011 DU9 exits 10-LD bubble12000
06182011 EL17 enters 10-LD bubble13000
27 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
08422011 EN11 enters 10-LD bubble1200019472011 DT9 closest Earth approach = 8.99 LD
04002011 DE5 enters 10-LD bubble1100000242011 DU9 designation credited to La Sagra Obs. at 6.42 LD outbound, V=19.0 reported, elon. 145.6°
03272011 EV29 enters 10-LD bubble10000
26 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
19142011 EK40 enters 10-LD bubble900019572011 DQ closest Earth approach = 9.65 LD
13472011 DQ last observed optically, by Mt. John Obs. at 9.66 LD inbound, R=18.4 reported
11282011 EB closest Earth approach = 2.45 LD
04432011 DT9 designation credited to CSS at 9.28 LD inbound, V=18.1 reported, elon. 161.9°
25 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
19342011 ET74 enters 10-LD bubble800013472011 DW4 last observed optically, by Bisei at 9.02 LD inbound, R=21.0 reported
09092011 DS exits 10-LD bubble700008452011 DX4 last observed optically, by MLS at 22.48 LD outbound, V=20.6 reported
08082011 DE5 designation credited to MLS at 15.72 LD inbound, V=20.1 reported, elon. 175.3°
04342011 DX4 designation credited to MLS at 21.79 LD outbound, V=21.9 reported, elon. 157.3°
03452011 DW4 designation credited to MLS at 9.30 LD inbound, V=20.1 reported, elon. 150.9°
24 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
22422011 DU9 exits Earth SOI800002342011 DU9 closest lunar approach = 1.29 LD
21142011 CF66 exits 10-LD bubble8100
19582011 DQ enters 10-LD bubble9100
17172011 DT9 enters 10-LD bubble8100
04502011 DW4 enters 10-LD bubble7100
03032011 DU9 exits Earth-Moon system6100
23 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
11012011 DU9 enters Earth-Moon system610119022011 DU9 closest Earth approach = 0.75 LD
09342011 DS designation credited to CSS at 7.20 LD outbound, V=18.8 reported, elon. 170.9°
06052011 DQ designation credited to CSS at 10.73 LD inbound, V=18.5 reported, elon. 177.5°
22 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1
15222011 DU9 enters Earth SOI6100
06262011 EB enters 10-LD bubble6000
21 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1
19002011 DX4 exits 10-LD bubble5000
20 Feb. 2011
UTEvents
11362011 CF66 closest Earth approach = 2.65 LD - Note: JPL has not posted an Earth close
approach listing for this object, indicating an uncertainty exceeding +/- ten days.
08442011 DX4 closest Earth approach = 8.01 LD - Note: JPL reports an approach to 7.6 LD (3.9 minimum) at 1031 UTC with an uncertainty of +/- 6 hours and 39 minutes.
02482011 CL50 last observed optically, by ARO Westfield at 6.24 LD outbound, V=19.8 reported
19 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
13042011 DS exits Earth SOI600017212011 CL50 closest Earth approach = 6.23 LD
09342011 DS closest lunar approach = 1.76 LD
18 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
22282011 DX4 enters 10-LD bubble610014352011 DS closest Earth approach = 1.99 LD
18032011 DU9 enters 10-LD bubble5100
17 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1
16062011 DS enters Earth SOI4100
01002011 CD66 exits 10-LD bubble4000
16 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1
01522011 CF66 enters 10-LD bubble5000
15 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1
18442011 ED12 enters 10-LD bubble4000
14 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
22112011 BV59 exits 10-LD bubble300020452011 CD66 last observed optically, by Great Shefford Obs. at 7.72 LD outbound, R=18.7 reported
18382011 CA7 exits 10-LD bubble4000
13 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
11142011 EJ exits 10-LD bubble500012252011 CF66 last observed optically, by MLS at 15.51 LD inbound, V=20.9 reported
06432011 CQ1 exits 10-LD bubble600008542011 CD66 closest Earth approach = 7.18 LD
06152011 CZ3 exits 10-LD bubble700008092011 CF66 designation credited to MLS at 15.90 LD inbound, V=21.2 reported, elon. 171.6°
06282011 CD66 designation credited to MLS at 7.18 LD inbound, V=19.08 calculated, elon. 165.3°
12 Feb. 2011
UTEvents
11052011 CL50 designation credited to MLS at 8.05 LD inbound, V=19.7 reported, elon. 168.4°
07112011 CU46 last observed optically, by Sabino Canyon Obs. at 16.00 LD outbound, R=19.3 reported
05052011 EJ closest Earth approach = 8.79 LD - Note: JPL reports an approach at 0500 UTC with an uncertainty of +/- 10 minutes.
11 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
20282011 DS enters 10-LD bubble800020022011 BV59 closest Earth approach = 6.91 LD
04132011 CU46 designation credited to LINEAR at 12.07 LD outbound, mag 19.1 reported, elon. 155.3°
10 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
23512011 CA7 exits Earth SOI700009092011 CA4 last observed optically, by ARO Westfield at 13.35 LD outbound, V=21.0 reported
22572011 EJ enters 10-LD bubble710001172011 CZ3 closest Earth approach = 2.50 LD
13312011 CU46 exits 10-LD bubble6100
06502011 CA7 exits Earth-Moon system7100
05242011 CA7 more than one LD from Moon7101
9 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
16542011 CD66 enters 10-LD bubble711123472011 CZ3 last observed optically, by Schiaparelli Obs. at 2.51 LD inbound, V=18.83 calculated, elon. 82.0°
16212011 CA7 within one LD of Moon611122462011 CA7 closest lunar approach = 0.78 LD
08052011 CA7 enters Earth-Moon system610119282011 CA7 closest Earth approach = 0.27 LD
8 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
19292011 CF22 exits 10-LD bubble610007422011 CA7 last observed optically, by ARO Westfield at 3.02 LD inbound, V=20.4 reported
18102011 BV59 enters 10-LD bubble710003132011 CU46 closest Earth approach = 4.45 LD - Note: JPL reports an approach at 0323 UTC with an uncertainty of +/- 10 minutes.
16262011 CL50 enters 10-LD bubble6100
15052011 CA7 enters Earth SOI5100
7 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
19552011 CA4 exits 10-LD bubble500013292011 BU59 last observed optically, by Tholen team/Mauna Kea at 62.31 LD outbound, R=22.6 reported
01022011 CF22 exits Earth SOI600011362011 CF22 last observed optically, by MLS at 4.29 LD outbound, V=21.2 reported
10382011 BV59 last observed optically, by Tholen team/Mauna Kea at 12.42 LD inbound, R=19.7 reported
09022011 CF22 designation credited to MLS at 3.84 LD outbound, V=21.0 reported, elon. 178.0°
08592011 CA7 designation credited to MLS at 4.92 LD inbound, V=20.5 reported, elon. 174.7°
6 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
20162011 CZ3 enters 10-LD bubble610011392011 CF22 closest Earth approach = 0.10 LD - Note: JPL reports an approach uncertainty of +/- 50 minutes.
18442011 CQ1 exits Earth SOI510006312011 CF22 closest lunar approach = 0.58 LD
17102011 CF22 exits Earth-Moon system5200
11092011 CF22 more than one LD from Moon5201
06072011 CF22 enters Earth-Moon system5211
04012011 CQ1 more than one LD from Moon5210
01532011 CF22 within one LD of Moon5220
5 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
22152011 CF22 enters Earth SOI521011362011 CQ1 closest lunar approach = 0.61 LD
19242011 BE24 exits 10-LD bubble511010152011 CA4 designation credited to CSS at 6.87 LD outbound, V=19.7 reported, elon. 152.4°
16542011 CU46 enters 10-LD bubble611005152011 CZ3 designation credited to CSS at 14.82 LD inbound, V=19.2 reported, elon. 162.1°
14202011 CQ1 exits Earth-Moon system5110
10382011 BG24 exits 10-LD bubble5111
4 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
20192011 CA7 enters 10-LD bubble611119382011 CQ1 closest Earth approach = 0.03 LD
20192011 CQ1 within one LD of Moon511118012011 CQ1 last observed optically, by SSS at 0.11 LD inbound, V=14.9 reported
03482011 CF22 enters 10-LD bubble510105382011 CQ1 designation credited to CSS at 0.76 LD inbound, V=19.4 reported, elon. 169.3°
00562011 CQ1 enters Earth-Moon system4101
3 Feb. 2011
UTEvents
21082011 BE24 closest Earth approach = 9.29 LD
2 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1Events
20352011 CQ1 enters Earth SOI410012312011 EC observed first, by PS1 at 60.90 LD inbound, w=22.6 reported, elon. 167.5°
12202011 BF10 exits 10-LD bubble40001203distant 425755 2011 CP4 designation credited to PS1 at 237.26 LD, w=21.8 reported, elon. 169.8°
06112010 XW58 last observed optically, by Spacewatch 1.8m at 96.13 LD outbound, V=22.43 calculated
1 Feb. 2011
UTBoundary Transitions<10<SIM<1E<1
23042011 BE24 enters 10-LD bubble5000
22402011 CA4 exits Earth SOI4000


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