<10=less than 10 LD from Earth

EBN Timeline for December 2007

<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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31 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
01032007 YR56 exits 10-LD bubble200005532007 YS56 discovered by CSS at 11.63 LD outbound, V=18.9 reported, elon. 154.4°
04512007 YR56 discovered by MLS at 10.09 LD outbound, V=19.52 calculated, elon. 147.4°
30 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
21282008 AF3 enters 10-LD bubble300008122007 YP56 discovered by LINEAR at 12.63 LD outbound, mag 19.2 reported, elon. 173.7°
10552007 YS56 exits 10-LD bubble200003522007 YN1 last observed optically, by Spacewatch 1.8m at 61.06 LD outbound, V=21.73 calculated
00512007 YR56 closest Earth approach = 9.74 LD
29 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
18582007 YP56 exits 10-LD bubble300010162007 XN16 last observed optically, by Spacewatch 1.8m at 40.42 LD outbound, V=21.9 reported
00362007 YR56 enters 10-LD bubble4000
28 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
12102007 YP56 exits Earth's Hill sphere3000
27 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
19552008 EA9 enters 10-LD bubble310019502007 YP56 closest lunar approach = 1.22 LD
10472007 YS56 exits Earth's Hill sphere210016482007 YP56 closest Earth approach = 0.54 LD
26 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
21262007 YP56 enters Earth's Hill sphere2200
12022007 XH16 exits 10-LD bubble2100
25 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
14392007 YP56 enters 10-LD bubble310022152007 YS56 closest lunar approach = 1.15 LD
15282007 YS56 closest Earth approach = 1.12 LD
24 Dec. 2007
UTCEvents
19522007 XH16 closest Earth approach = 8.10 LD
01082007 XH16 last observed by radar, from Arecibo at 8.55 LD inbound, V=13.02 calculated
00432007 XH16 first observed by radar, from Arecibo at 8.57 LD inbound, V=13.03 calculated
23 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
20102007 YS56 enters Earth's Hill sphere2100
03432007 XH16 enters 10-LD bubble2000
22 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
19032007 XB23 exits 10-LD bubble1000
20 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
20052007 YS56 enters 10-LD bubble2000
18 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
20352007 YM exits 10-LD bubble100007262007 YN1 discovered by Spacewatch 0.9m at 13.05 LD outbound, V=18.3 reported, elon. 168.8°
04242007 XZ9 last observed optically, by Spacewatch 1.8m at 55.37 LD outbound, V=21.45 calculated
17 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
12542007 YN1 exits 10-LD bubble200012352007 YM last observed optically, by CSS at 8.05 LD outbound, V=18.3 reported
09312007 YM discovered by CSS at 7.88 LD outbound, V=19.1 reported, elon. 148.6°
16 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
20102007 XB23 exits Earth's Hill sphere300008542007 WZ4 last observed optically, by MLS at 52.06 LD outbound, V=20.1 reported
03152007 WM3 last observed optically, by Spacewatch 1.8m at 104.65 LD outbound, V=22.42 calculated
15 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
23212007 YN1 exits Earth's Hill sphere310011302007 XB23 last observed optically, by SSS at 2.48 LD outbound, R=18.2 reported, elon. 94.0°
04542007 WP3 last observed optically, by Spacewatch 1.8m at 106.24 LD outbound, V=22.36 calculated
00352007 YN1 closest Earth approach = 1.02 LD
14 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
02092007 XN16 exits 10-LD bubble320020022007 YN1 closest lunar approach = 1.33 LD
01482007 YN1 enters Earth's Hill sphere420013292007 XB23 discovered by SSS at 1.53 LD outbound, R=17.8 reported, elon. 97.6°
11132007 VD138 last observed optically, by ARO at 55.46 LD outbound, V=22.6 reported
07302007 YM closest Earth approach = 5.46 LD - Note: JPL reports an approach uncertainty of 27 minutes.
06152007 XV23 discovered by LINEAR at 11.22 LD outbound, mag 18.6 reported, elon. 171.3°
13 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
04572007 VD184 exits 10-LD bubble410005232007 XB23 closest lunar approach = 1.13 LD
04022007 XB23 closest Earth approach = 0.26 LD - Note: JPL reports an approach uncertainty of 8 minutes.
12 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
21362007 XV23 exits 10-LD bubble5100
12142007 YN1 enters 10-LD bubble6100
11 Dec. 2007
UTCEvents
06242007 XV23 closest Earth approach = 9.44 LD
10 Dec. 2007
UTCEvents
04452007 XN16 discovered by LINEAR at 4.97 LD outbound, mag 18.0 reported, elon. 159.2°
9 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1Events
17452007 YM enters 10-LD bubble510017362007 XN16 closest Earth approach = 4.88 LD
15062007 XV23 enters 10-LD bubble410006532007 VD184 closest Earth approach = 7.83 LD
11552007 XB23 enters Earth's Hill sphere3100
8 Dec. 2007
UTCEvents
17072007 XH16 discovered by SSS at 56.84 LD inbound, V=17.2 reported, elon. 114.1°
5 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
08272007 VD184 enters 10-LD bubble3000
08252007 XN16 enters 10-LD bubble2000
4 Dec. 2007
UTCEvents
04392007 XZ9 discovered by LINEAR at 12.55 LD outbound, mag 18.9 reported, elon. 154.3°
3 Dec. 2007
UTCBoundary Transitions<10<HSM<1E<1
13032007 XB23 enters 10-LD bubble1000
00142007 XZ9 exits 10-LD bubble0000
1 Dec. 2007
UTCEvents
02452007 XZ9 closest Earth approach = 8.07 LD

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