<10=less than 10 LD from Earth

EBN Timeline for September 2009

<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)
30 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
21092009 TB enters Earth-Moon system610113442009 SH2 closest Earth approach = 2.84 LD
10572009 TB enters Earth SOI610011432009 SN103 last observed optically, by Tenagra II Obs. at 3.06 LD outbound, R=20.6 reported, elon. 61.7°
29 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
21322009 SN103 exits Earth SOI60001843152664 1998 FW4 closest Earth approach = 8.63 LD
07342009 SU104 enters 10-LD bubble6100
28 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
20262009 TD17 enters 10-LD bubble510011512009 SC170 last observed optically, by MLS at 10.15 LD outbound, V=22.0 reported
1245152664 1998 FW4 enters 10-LD bubble410008292009 SW171 discovered by Spacewatch 0.9m at 17.41 LD outbound, V=20.9 reported, elon. 157.7°
08432009 SC170 exits 10-LD bubble31000611293726 2007 RQ17 last observed optically, by MLS at 85.22 LD outbound, V=20.2 reported
04052009 TB enters 10-LD bubble410005242009 SN103 closest Earth approach = 1.21 LD
27 Sept. 2009
UTEvents
18032009 SN103 closest lunar approach = 1.91 LD
10232009 SC170 discovered by MLS at 8.95 LD outbound, V=20.7 reported, elon. 144.4°
08442009 SP104 last observed optically, by MLS at 21.65 LD outbound, V=21.0 reported
06242009 SU104 discovered by CSS at 17.80 LD inbound, V=19.4 reported, elon. 166.2°
26 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
17102009 SJ exits 10-LD bubble31002225152664 1998 FW4 last observed optically, by North Obs. at 14.38 LD inbound, C=14.1 reported
13162009 SN103 enters Earth SOI410006512009 SP104 discovered by MLS at 17.55 LD outbound, V=20.5 reported, elon. 168.7°
0130152664 1998 FW4 first observed by radar, from DSS-14 at 17.34 LD inbound, V=14.43 calculated
25 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
00042009 SH15 exits 10-LD bubble400007592009 SD15 last observed optically, by MRO at 37.49 LD outbound, R=21.8 reported
07322009 RU1 last observed optically, by Spacewatch 1.8m at 60.43 LD outbound, V=21.7 reported
06482009 SN103 discovered by CSS at 3.85 LD inbound, V=18.6 reported, elon. 152.1°
03302009 SH15 last observed optically, by Great Shefford Obs. at 10.14 LD outbound, R=18.4 reported
03202009 SK15 last observed optically, by Great Shefford Obs. at 10.64 LD outbound, R=19.2 reported
24 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
15382009 SK15 exits 10-LD bubble500013312009 SA100 discovered by SSS at 21.66 LD outbound, V=18.7 reported, elon. 143.0°
06072009 SP104 exits 10-LD bubble600007062009 SM98 discovered by CSS at 51.37 LD outbound, V=18.9 reported, elon. 160.2°
05522009 SM98 observed first, by CSS at 51.14 LD outbound, V=18.4 reported, elon. 160.2°
23 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
17472009 RG2 exits 10-LD bubble700021302009 SJ closest Earth approach = 8.49 LD
22 Sept. 2009
UTEvents
12202009 SH15 closest Earth approach = 8.74 LD
21 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
02192009 SJ enters 10-LD bubble800019222009 SP104 closest Earth approach = 3.42 LD - Note: JPL reports an approach to 3.42 LD (3.34 minimum) with an uncertainty of +/- 38 minutes.
11472009 SJ last observed optically, by PTF at 9.63 LD inbound, r=19.1 reported
08072009 SK15 closest Earth approach = 7.61 LD
07012009 SC170 closest Earth approach = 4.42 LD - Note: JPL reports an approach to 4.42 LD (4.38 minimum) with an uncertainty of +/- 19 minutes.
01052009 RG2 closest Earth approach = 9.09 LD
20 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
18052009 SH2 enters 10-LD bubble700006572009 SK15 discovered by LINEAR at 7.89 LD inbound, mag 18.4 reported, elon. 131.1°
13202009 SH1 exits 10-LD bubble600005342009 SH15 discovered by LINEAR at 9.82 LD inbound, mag 17.5 reported, elon. 162.5°
05232009 SN103 enters 10-LD bubble700000172009 RG2 last observed optically, by Schiaparelli Obs. at 9.23 LD inbound, C=18.3 reported
00522009 SH15 enters 10-LD bubble6000
19 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
16072009 RR exits 10-LD bubble500006032009 SD last observed optically, by Spacewatch 1.8m at 45.89 LD outbound, V=21.54 calculated
08352009 SP104 enters 10-LD bubble600005482009 SD15 discovered by MLS at 18.56 LD outbound, V=21.6 reported, elon. 175.7°
18 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
08572009 RG2 enters 10-LD bubble500018222009 SH2 discovered by SSS at 11.87 LD inbound, V=18.8 reported, elon. 122.0°
00402009 SK15 enters 10-LD bubble400012282009 RY3 last observed optically, by SSS at 31.32 LD outbound, R=20.2 reported
09222009 SH1 last observed optically, by MLS at 6.67 LD outbound, V=21.12 calculated
07252009 SW1 discovered by CSS at 34.39 LD outbound, V=20.1 reported, elon. 141.2°
05042009 SH1 discovered by MLS at 6.40 LD outbound, V=21.1 reported, elon. 172.7°
17 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
07262009 SA100 exits 10-LD bubble300006342009 SJ discovered by CSS at 15.17 LD inbound, V=19.5 reported, elon. 162.6°
16 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
01242009 SD15 exits 10-LD bubble400007562009 RR closest Earth approach = 2.80 LD
06492009 SD discovered by MLS at 35.31 LD outbound, V=20.9 reported, elon. 172.3°
05022009 QC23 last observed optically, by Spacewatch 1.8m at 57.19 LD outbound, V=21.3 reported
15 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
08452009 SW171 exits 10-LD bubble500010422009 QH34 last observed optically, by Spacewatch 1.8m at 27.52 LD outbound, V=22.03 calculated, elon. 94.1°
09192009 SA100 closest Earth approach = 9.13 LD
01342009 RR last observed optically, by ARO at 4.59 LD inbound, V=18.1 reported
14 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
15072009 SH1 exits Earth SOI600012132009 SH1 closest Earth approach = 2.40 LD - Note: JPL reports an approach to 2.39 LD (0.97 minimum) at 1222 UTC with an uncertainty of +/- 2 hours and 4 minutes.
09182009 SH1 enters Earth SOI6100
03352009 SC170 enters 10-LD bubble6000
13 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
19292009 RY3 exits 10-LD bubble500019372009 SD15 closest Earth approach = 7.08 LD
19282009 SM98 exits 10-LD bubble600016422009 RY3 discovered by SSS at 9.48 LD outbound, V=17.9 reported, elon. 146.4°
11132009 SA100 enters 10-LD bubble700016342009 RY3 observed first, by SSS at 9.46 LD outbound, V=17.8 reported, elon. 146.4°
05352009 RG2 discovered by LINEAR at 15.29 LD inbound, mag 19.5 reported, elon. 172.1°
12 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
23452009 RR enters 10-LD bubble600022332009 SM98 closest Earth approach = 9.24 LD
01382009 SM98 enters 10-LD bubble500006482009 RU1 discovered by CSS at 26.90 LD outbound, V=19.1 reported, elon. 166.1°
04052009 SW171 closest Earth approach = 9.61 LD
11 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
23132009 RY3 exits Earth SOI400015412009 RY3 closest Earth approach = 1.94 LD
13442009 SD15 enters 10-LD bubble410014062009 RY3 closest lunar approach = 2.10 LD
08092009 RY3 enters Earth SOI310006162006 VV2 last observed optically, by ARO at 961.99 LD outbound, V=21.7 reported
04222009 RR discovered by CSS at 15.07 LD inbound, V=19.5 reported, elon. 158.3°
9 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1
11512009 RY3 enters 10-LD bubble3000
8 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1
22482009 SD exits 10-LD bubble2000
22272009 SW171 enters 10-LD bubble3000
10312009 SH1 enters 10-LD bubble2000
7 Sept. 2009
UTEvents
1111distant 2009 CV last observed optically, by Tholen team/Mauna Kea at 87.02 LD, R=22.3 reported
6 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
16252009 QC35 exits 10-LD bubble100004242009 SD closest Earth approach = 2.91 LD - Note: JPL reports an approach to 2.91 LD (2.86 minimum) with an uncertainty of +/- 21 minutes.
5 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
21272009 SW1 exits 10-LD bubble20001058distant 2009 CV observed first, by Tholen team/Mauna Kea at 85.12 LD, R=22.1 reported, elon. 173.6°
4 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
22102009 QH34 exits 10-LD bubble300019242009 SW1 closest Earth approach = 9.64 LD - Note: JPL reports an approach to 9.65 LD (9.60 minimum) with an uncertainty of +/- 2 minutes.
19542009 RU1 exits 10-LD bubble4000
3 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1
17252009 SW1 enters 10-LD bubble5000
10042009 SD enters 10-LD bubble4000
2 Sept. 2009
UTEvents
11362009 QC35 closest Earth approach = 2.92 LD
07062009 QC35 last observed optically, by ARO at 2.95 LD inbound, V=17.3 reported
1 Sept. 2009
UTBoundary Transitions<10<SIM<1E<1Events
20502009 QK9 exits 10-LD bubble300012002009 RU1 closest Earth approach = 5.97 LD


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