<10=less than 10 LD from Earth

EBN Timeline for February 2009

<HS=inside Earth's Hill sphere
M<1=less than 1 LD from the Moon
E<1=less than 1 LD from Earth (intruder)
LD = lunar distance = distance between Earth & Moon

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28 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
21062009 BD exits 10-LD bubble720008262009 DC45 last observed optically, by MLS at 10.70 LD outbound, V=20.8 reported
11282009 DD45 enters Earth's Hill sphere820006262009 DJ46 discovered by LINEAR at 10.37 LD outbound, mag 18.7 reported, elon. 162.2°
10522009 DM40 exits 10-LD bubble8100
05162009 EJ1 exits Earth-Moon system9100
03312009 DT43 exits Earth's Hill sphere9101
27 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
23162009 DJ46 exits 10-LD bubble920119432009 EJ1 closest Earth approach = 0.16 LD - Note: JPL reports an approach uncertainty of 2 hours and 32 minutes.
22592009 DC45 exits 10-LD bubble1020112242009 DD45 discovered by SSS at 5.66 LD inbound, V=18.7 reported, elon. 98.9°
19172009 EJ1 more than one LD from Moon1120109572009 DT43 discovered by CSS at 1.81 LD outbound, V=15.8 reported, elon. 169.0°
12172009 DS43 enters 10-LD bubble1121109512009 EJ1 closest lunar approach = 0.24 LD
10112009 EJ1 enters Earth-Moon system1021107572009 DS43 discovered by CSS at 10.63 LD inbound, V=18.2 reported, elon. 173.3°
00232009 EJ1 within one LD of Moon1021007032009 DV43 discovered by CSS at 42.71 LD inbound, V=19.7 reported, elon. 174.7°
07002009 DC45 discovered by CSS at 8.84 LD outbound, V=19.6 reported, elon. 171.8°
06202009 DS43 observed first, by LINEAR at 10.87 LD inbound, mag 18.6 reported, elon. 172.3°
26 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
14012009 DN4 enters 10-LD bubble1020022222009 DT43 closest Earth approach = 1.03 LD
10392009 EY exits 10-LD bubble920015102009 DT43 closest lunar approach = 1.21 LD
05502009 EJ1 enters Earth's Hill sphere1020013242009 DJ46 closest Earth approach = 9.15 LD
05462009 DU10 exits Earth's Hill sphere1010012472009 DM40 last observed optically, by CSS at 6.39 LD outbound, V=19.2 reported
03322009 DM45 exits 10-LD bubble1020009192009 DM40 discovered by CSS at 6.13 LD outbound, V=19.7 reported, elon. 130.0°
0904136617 1994 CC observed first, by LINEAR at 315.83 LD inbound, mag 19.5 reported, elon. 123.6°
07412009 DB43 discovered by MLS at 14.61 LD outbound, V=21.0 reported, elon. 154.2°
25 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
17122009 DT43 enters Earth's Hill sphere1120010272009 BF58 last observed optically, by MRO at 57.25 LD outbound, R=23.0 reported
03382009 DD45 enters 10-LD bubble1110004592009 DM45 discovered by Taunus Obs. at 7.30 LD outbound, V=15.8 reported, elon. 165.5°
03262009 DJ46 enters 10-LD bubble10100
02442009 DM40 exits Earth's Hill sphere9100
24 Feb. 2009
UTCEvents
12552009 DU10 closest Earth approach = 2.22 LD
09482009 DV last observed optically, by Spacewatch 1.8m at 51.35 LD outbound, V=21.30 calculated
08452009 FD observed first, by Spacewatch 0.9m at 119.77 LD inbound, V=21.34 calculated, elon. 143.3°
06302009 DU10 last observed optically, by CSS at 2.28 LD inbound, V=16.6 reported
06132009 EY closest Earth approach = 8.33 LD - Note: JPL reports an approach uncertainty of 23 minutes.
01222009 DM45 closest Earth approach = 5.75 LD
23 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
18042009 EJ1 enters 10-LD bubble920020572009 CV closest Earth approach = 4.81 LD
17012009 DT43 enters 10-LD bubble820010172009 DM40 closest Earth approach = 2.09 LD - Note: JPL reports an approach uncertainty of 1 hour and 25 minutes.
1143208023 1999 AQ10 exits 10-LD bubble720003242009 DN4 last observed optically, by ARO at 12.82 LD inbound, V=20.4 reported
09392009 DC45 exits Earth's Hill sphere820002112009 DC45 closest Earth approach = 3.85 LD
01212009 DM40 closest lunar approach = 1.34 LD
22 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
20092009 DU10 enters Earth's Hill sphere830008022009 DO111 discovered by Spacewatch 0.9m at 55.10 LD inbound, V=19.97 calculated, elon. 150.8°
18422009 DC45 enters Earth's Hill sphere820004442009 DU10 discovered by CSS at 4.93 LD inbound, V=18.1 reported, elon. 148.5°
01362009 EY enters 10-LD bubble8100
21 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
23072009 DM45 enters 10-LD bubble710017032009 DT10 discovered by SSS at 36.93 LD outbound, V=19.3 reported, elon. 153.7°
17512009 DM40 enters Earth's Hill sphere6100
20 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
20232009 DB43 exits 10-LD bubble600008412009 BG58 last observed optically, by ARO at 45.02 LD outbound, V=22.1 reported
07582009 DR3 discovered by CSS at 64.36 LD inbound, V=18.5 reported, elon. 170.1°
07222009 BF81 last observed optically, by ARO at 69.01 LD outbound, V=22.88 calculated
05412009 DN4 discovered by MLS at 15.67 LD inbound, V=20.5 reported, elon. 135.2°
04362009 DN4 observed first, by MLS at 15.72 LD inbound, V=21.0 reported, elon. 135.3°
19 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1
08342009 DU10 enters 10-LD bubble7000
18 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
09552009 DM40 enters 10-LD bubble60001528208023 1999 AQ10 closest Earth approach = 4.39 LD
04462009 DC45 enters 10-LD bubble5000
17 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
19152009 DW exits 10-LD bubble400007452009 DW discovered by LINEAR at 9.86 LD outbound, mag 18.8 reported, elon. 155.8°
06522009 DV discovered by LINEAR at 16.22 LD outbound, mag 19.2 reported, elon. 169.3°
0447208023 1999 AQ10 last observed optically, by Schiaparelli Obs. at 5.14 LD inbound, C=13.0 reported
16 Feb. 2009
UTCEvents
02062009 DW closest Earth approach = 9.71 LD
15 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1
21522009 DV exits 10-LD bubble5000
02062009 BL58 exits 10-LD bubble6000
14 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
09062009 DW enters 10-LD bubble700005562009 DR3 observed first, by CSS at 83.48 LD inbound, V=18.7 reported, elon. 172.3°
04142009 DV closest Earth approach = 5.14 LD
13 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
19222009 CV enters 10-LD bubble600000392009 DB43 closest Earth approach = 6.49 LD
1914208023 1999 AQ10 enters 10-LD bubble5000
12 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1
10362009 DV enters 10-LD bubble4000
11 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
17462009 DT10 exits 10-LD bubble300009322009 BL58 closest Earth approach = 4.74 LD
1707207398 2006 AS2 exits 10-LD bubble400002432009 BL58 last observed optically, by Great Shefford Obs. at 4.79 LD inbound, R=17.7 reported
10462009 BE58 exits 10-LD bubble5000
08582009 CP exits 10-LD bubble6000
05072009 BW2 exits 10-LD bubble7000
10 Feb. 2009
UTCEvents
14032009 DT10 closest Earth approach = 9.29 LD
1333207398 2006 AS2 closest Earth approach = 9.16 LD
1159207398 2006 AS2 last observed optically, by Hamamatsu-Yuto Obs. at 9.16 LD inbound, V=15.6 reported, elon. 80.7°
04042009 BE58 closest Earth approach = 8.50 LD
9 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
10242009 DT10 enters 10-LD bubble800001122009 CP last observed optically, by Great Shefford Obs. at 7.83 LD outbound, R=19.5 reported
0958207398 2006 AS2 enters 10-LD bubble7000
8 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
21212009 BE58 enters 10-LD bubble600010172009 CP closest Earth approach = 7.71 LD
7 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1
21362009 BG81 exits 10-LD bubble5000
17152009 BL58 enters 10-LD bubble6000
06082009 BK58 exits 10-LD bubble5000
6 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
19092009 BD exits Earth's Hill sphere600010102009 BE58 last observed optically, by LINEAR at 17.62 LD inbound, mag 16.4 reported
5 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
11582009 CP enters 10-LD bubble610007202009 BS5 last observed optically, by ARO at 25.13 LD outbound, V=22.3 reported
04262009 DB43 enters 10-LD bubble510006042009 BH11 last observed optically, by ARO at 36.14 LD outbound, V=22.4 reported
04492009 BG last observed optically, by ARO at 40.64 LD outbound, V=21.89 calculated
02402009 BW2 closest Earth approach = 8.40 LD
01132009 BW2 last observed optically, by ARO at 8.40 LD inbound, V=20.3 reported, elon. 87.3°
4 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
22442009 CC2 exits 10-LD bubble410008542009 CC2 last observed optically, by ARO at 7.45 LD outbound, V=20.3 reported
06342009 BK58 exits Earth's Hill sphere510005232009 CC2 discovered by CSS at 6.81 LD outbound, V=19.3 reported, elon. 171.8°
3 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1
13292009 CC2 exits Earth's Hill sphere5200
2 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
21162009 CC2 exits Earth-Moon system530021582009 CV discovered by Wildberg Obs. at 19.37 LD inbound, V=18.6 reported, elon. 162.4°
11492009 CC2 enters Earth-Moon system530116332009 CC2 closest Earth approach = 0.49 LD - Note: JPL reports an approach uncertainty of 53 minutes.
16062009 CC2 closest lunar approach = 1.16 LD
15142009 BG81 closest Earth approach = 4.44 LD
15052009 BK58 closest Earth approach = 1.69 LD
13062009 BG81 last observed optically, by Tenagra II Obs. at 4.44 LD inbound, R=19.6 reported
07302009 BK58 closest lunar approach = 1.86 LD
05272009 CP discovered by MLS at 15.57 LD inbound, V=20.3 reported, elon. 159.4°
05272009 BF2 last observed optically, by Spacewatch 1.8m at 24.70 LD outbound, V=21.3 reported
1 Feb. 2009
UTCBoundary Transitions<10<HSM<1E<1Events
19362009 CC2 enters Earth's Hill sphere530005272009 BK58 last observed optically, by CSS at 3.43 LD inbound, V=17.6 reported

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