<10=less than 10 LD from Earth

EBN Timeline for April 2011

<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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30 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
21292011 HP4 enters Earth's Hill sphere920004042011 JY1 closest Earth approach = 7.51 LD
20152011 JN5 enters 10-LD bubble9100
29 April 2011
UTCBoundary Transitions<10<HSM<1E<1
14452011 JM5 enters Earth's Hill sphere8100
28 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
16022011 HN24 exits 10-LD bubble800008052011 HJ last observed optically, by Holmes/CTIO at 5.32 LD outbound, V=18.7 reported
14272011 HP4 enters 10-LD bubble900007492011 HD24 observed first, by MLS at 26.88 LD, V=20.1 reported, elon. 178.2°
07122011 HC24 observed first, by MLS at 50.46 LD, V=20.6 reported, elon. 172.8°
07042011 HJ closest Earth approach = 5.32 LD
00102011 HP4 last observed optically, by Great Shefford Obs. at 11.83 LD inbound, R=19.9 reported
27 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
19442009 UK20 enters 10-LD bubble800021332008 UC202 closest Earth approach = 8.87 LD - Note: JPL reports an approach at 2118 UTC with an uncertainty of 1 hour and 20 minutes.
17582011 JY1 enters 10-LD bubble700012242011 GJ3 closest Earth approach = 7.74 LD
12492011 JA exits 10-LD bubble600011012011 HN24 observed first, by PS1 at 8.33 LD, r=20.2 reported, elon. 160.8°
03522011 JV10 enters 10-LD bubble7000
26 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
07022011 JA exits Earth's Hill sphere600006142011 HP4 observed first, by MLS at 17.33 LD, V=21.5 reported, elon. 170.0°
25 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
16312011 JA more than one LD from Moon610014232011 JA closest Earth approach = 1.62 LD
09402011 JA within one LD of Moon611013062011 JA closest lunar approach = 0.67 LD
00012011 JM5 enters 10-LD bubble6100
24 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
21452011 JA enters Earth's Hill sphere510009072011 HJ observed first, by MLS at 7.92 LD, V=18.1 reported, elon. 172.5°
03292011 HN24 exits Earth's Hill sphere5000
23 April 2011
UTCBoundary Transitions<10<HSM<1E<1
15582011 JA enters 10-LD bubble5100
22 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
15522011 HJ enters 10-LD bubble410021342011 GJ3 last observed optically, by Great Shefford Obs. at 9.59 LD inbound, R=18.9 reported
15462008 UC202 enters 10-LD bubble310001382011 HN24 closest lunar approach = 1.99 LD
08292011 GJ3 enters 10-LD bubble2100
21 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
07372011 GP59 exits 10-LD bubble110014292011 HN24 closest Earth approach = 1.60 LD
19 April 2011
UTCBoundary Transitions<10<HSM<1E<1
01282011 HN24 enters Earth's Hill sphere2100
17 April 2011
UTCBoundary Transitions<10<HSM<1E<1
19452011 GP59 exits Earth's Hill sphere2000
02272011 GE exits 10-LD bubble2100
16 April 2011
UTCBoundary Transitions<10<HSM<1E<1
00412011 GP59 more than one LD from Moon3100
15 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
05482011 GP59 within one LD of Moon311020292011 GP59 last observed optically, by Siegen Obs. at 1.39 LD outbound, V=14.9 reported
19092011 GP59 closest Earth approach = 1.39 LD
15142011 GP59 closest lunar approach = 0.61 LD
14 April 2011
UTCBoundary Transitions<10<HSM<1E<1
12402011 HN24 enters 10-LD bubble3100
13 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
18352011 GP59 enters Earth's Hill sphere210015192011 FT53 last observed optically, by Tholen team/Mauna Kea at 10.17 LD outbound, R=21.2 reported, elon. 73.4°
13012011 FT53 exits 10-LD bubble200008312011 GD last observed optically, by Spacewatch 1.8m at 51.08 LD outbound, V=20.99 calculated
01342011 GE closest Earth approach = 4.77 LD
12 April 2011
UTCEvents
09322011 GE last observed optically, by Sandlot Obs. at 4.99 LD inbound, R=18.4 reported
11 April 2011
UTCBoundary Transitions<10<HSM<1E<1
17462011 GZ2 exits 10-LD bubble3000
10 April 2011
UTCBoundary Transitions<10<HSM<1E<1
06522011 GP59 enters 10-LD bubble4000
03562011 GW9 exits 10-LD bubble3000
9 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
20532011 GP28 exits 10-LD bubble400020192011 FT53 closest Earth approach = 6.00 LD
19042011 GZ2 exits Earth's Hill sphere5000
00492011 GE enters 10-LD bubble5100
8 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
20072011 FT29 exits 10-LD bubble410023352011 GZ2 closest Earth approach = 2.66 LD
04052011 GZ2 enters Earth's Hill sphere510022382011 GP59 observed first, by La Sagra Obs. at 12.40 LD, V=17.5 reported, elon. 140.7°
00032011 GP28 exits Earth's Hill sphere500022002011 GZ2 last observed optically, by Great Shefford Obs. at 2.67 LD inbound, R=17.9 reported, elon. 81.2°
7 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
17342011 GW9 exits Earth's Hill sphere510000382011 FT29 closest Earth approach = 6.28 LD
02402011 GP28 exits Earth-Moon system520000362011 GP28 closest lunar approach = 1.00 LD
01072011 GP28 more than one LD from Moon5201
6 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
23592011 GP28 within one LD of Moon521119362011 GP28 closest Earth approach = 0.25 LD - Note: JPL reports an approach at 1939 UTC with an uncertainty of 5 minutes.
18512011 GW9 more than one LD from Moon520111432011 GW9 closest lunar approach = 0.61 LD
13002011 GW9 exits Earth-Moon system521111422011 EW74 last observed optically, by Hills/RAS Moorook at 31.72 LD outbound, R=19.9 reported
12312011 GP28 enters Earth-Moon system521204532011 GW9 closest Earth approach = 0.52 LD
05232011 GZ2 enters 10-LD bubble5211
04352011 GW9 within one LD of Moon4211
03562011 FT53 enters 10-LD bubble4201
5 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
20462011 GW9 enters Earth-Moon system320117482011 GW9 last observed optically, by Bisei at 1.28 LD inbound, R=16.7 reported
19552011 FT9 exits 10-LD bubble320011032011 FT29 last observed optically, by Hills/RAS Moorook at 9.20 LD inbound, R=18.0 reported
15102011 GP28 enters Earth's Hill sphere420009282011 GM44 observed first, by SSS at 22.90 LD, V=16.0 reported, elon. 92.0°
05092011 FT29 enters 10-LD bubble410008072011 GP28 last observed optically, by Sandlot Obs. at 4.85 LD inbound, R=20.3 reported
4 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
16122011 GW9 enters Earth's Hill sphere310010132011 GW9 observed first, by MLS at 4.52 LD, V=19.4 reported, elon. 158.1°
05322011 FA23 exits 10-LD bubble300008442011 GP28 observed first, by MLS at 8.04 LD, V=21.5 reported, elon. 170.4°
3 April 2011
UTCBoundary Transitions<10<HSM<1E<1
18212011 GP28 enters 10-LD bubble4000
2 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
10582011 GM44 exits 10-LD bubble300009592011 GB3 observed first, by LINEAR at 13.71 LD, mag 17.8 reported, elon. 146.6°
05542011 GW9 enters 10-LD bubble400006532011 GJ3 observed first, by MLS at 33.43 LD, V=21.3 reported, elon. 173.3°
04072011 FA23 exits Earth's Hill sphere300005202011 GZ2 observed first, by MLS at 23.84 LD, V=21.2 reported, elon. 160.6°
05142011 FZ22 last observed optically, by ARO Westfield at 82.96 LD outbound, V=21.8 reported
1 April 2011
UTCBoundary Transitions<10<HSM<1E<1Events
01282011 GM44 enters 10-LD bubble310018132011 GM44 closest Earth approach = 9.15 LD - Note: JPL reports an approach to 9.2 LD (9.1 minimum) .
10172011 GE observed first, by MLS at 26.10 LD, V=21.1 reported, elon. 170.2°
10092011 FA23 closest lunar approach = 2.01 LD
08282011 GD observed first, by CSS at 22.08 LD, V=18.9 reported, elon. 168.1°
03252011 FT9 closest Earth approach = 7.55 LD
03112011 FA23 closest Earth approach = 2.10 LD

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