EBN March '12 timeline

<10	=	less than 10 LD from Earth	EBN Timeline for March 2012
<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

31 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2324	2012 EG5 enters Earth-Moon system	10	1	1	1	2231	2012 EG5 closest lunar approach = 0.94 LD
1816	2012 EG5 within one LD of Moon	10	1	1	0	1008	2012 FS52 last observed optically, by LINEAR at 12.73 LD inbound, mag 19.6 reported
1455	2012 FS35 exits Earth's Hill sphere	10	1	0	0
0352	2012 FX35 exits 10-LD bubble	10	2	0	0
0147	2012 FA57 enters 10-LD bubble	11	2	0	0
30 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1739	2012 FW35 enters 10-LD bubble	10	2	0	0	1830	discovery MPEC issued for 2012 FH58
1453	2012 FH58 enters 10-LD bubble	9	2	0	0	0633	2012 FV23 closest Earth approach = 6.61 LD
0836	2012 EG5 enters Earth's Hill sphere	8	2	0	0
29 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
0951	2012 FP35 exits 10-LD bubble	8	1	0	0	1059	2012 FA71 observed first, by PS1 at 43.25 LD, w=22.3 reported, elon. 159.9°
0653	2012 GE exits Earth's Hill sphere	9	1	0	0	1057	2012 FQ62 observed first, by PS1 at 22.37 LD, w=20.8 reported, elon. 162.1°
						0942	2012 FV23 last observed optically, by Sandlot Obs. at 6.72 LD inbound, R=19.2 reported, elon. 98.8°
						0831	2012 FH58 observed first, by MLS at 12.63 LD, V=19.7 reported, elon. 171.4°
28 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
0605	2012 FT35 exits Earth's Hill sphere	9	2	0	0	2325	2012 FX35 last observed optically, by Schiaparelli Obs. at 7.44 LD outbound, R=18.5 reported
0500	2012 FU23 exits 10-LD bubble	9	3	0	0	2205	discovery MPEC issued for 2012 FA57
0056	2012 GE enters Earth's Hill sphere	10	3	0	0	1620	discovery MPEC issued for 2012 FS52
						1555	2012 GE closest Earth approach = 3.59 LD
						0714	2012 EP10 last observed optically, by Tholen team/Mauna Kea at 18.50 LD outbound, R=23.2 reported
						0433	2012 FA57 observed first, by MLS at 15.89 LD, V=20.9 reported, elon. 125.7°
27 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2336	2012 HC25 enters 10-LD bubble	10	2	0	0	0858	2012 FS52 observed first, by MLS at 25.95 LD, V=20.1 reported, elon. 150.2°
2100	2012 FS35 exits Earth-Moon system	9	2	0	0	0022	2012 FW35 last observed optically, by Schiaparelli Obs. at 17.99 LD inbound, R=20.2 reported
1115	2012 FP35 exits Earth's Hill sphere	9	2	0	1	0008	2012 FS35 closest lunar approach = 1.04 LD
0208	2012 EG5 enters 10-LD bubble	9	3	0	1
26 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1422	2012 FP35 more than one LD from Moon	8	3	0	1	2305	2012 FT35 last observed optically, by Schiaparelli Obs. at 2.83 LD outbound, R=20.7 reported
1244	2012 FP35 exits Earth-Moon system	8	3	1	1	1708	2012 FS35 closest Earth approach = 0.17 LD
1129	2012 FU23 exits Earth's Hill sphere	8	3	1	2	1058	2012 FP35 closest lunar approach = 0.88 LD
0733	2012 FP35 within one LD of Moon	8	4	1	2	0643	2012 EN10 last observed optically, by ARO Westfield at 33.94 LD outbound, V=22.1 reported
0354	2012 EL8 exits 10-LD bubble	8	4	0	2	0550	2012 FP35 closest Earth approach = 0.42 LD
						0503	2012 FS35 last observed optically, by ARO Westfield at 0.48 LD inbound, V=16.8 reported
						0452	2012 FP35 last observed optically, by Great Shefford Obs. at 0.44 LD inbound, R=13.7 reported
						0329	2012 FT35 closest lunar approach = 2.26 LD
25 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2257	2012 FP35 enters Earth-Moon system	9	4	0	2	2300	discovery MPEC issued for 2012 FX35
1317	2012 FS35 enters Earth-Moon system	9	4	0	1	2256	discovery MPEC issued for 2012 FW35
0730	2012 FU23 enters Earth's Hill sphere	9	4	0	0	2252	discovery MPEC issued for 2012 FT35
0057	2012 EO8 exits 10-LD bubble	9	3	0	0	2137	discovery MPEC issued for 2012 FS35
0026	2012 FP35 enters Earth's Hill sphere	10	3	0	0	2129	discovery MPEC issued for 2012 FP35
						2129	2012 FU23 closest Earth approach = 3.06 LD
						1832	discovery MPEC issued for 2012 FM35
						0932	2012 ER10 last observed optically, by Spacewatch 1.8m at 46.18 LD outbound, R=21.0 reported
						0807	2012 FX35 observed first, by CSS at 4.07 LD, V=17.3 reported, elon. 140.7°
						0430	2012 FS35 observed first, by CSS at 1.29 LD, V=18.9 reported, elon. 153.0°
						0154	2012 FU23 last observed optically, by Great Shefford Obs. at 4.55 LD inbound, R=18.5 reported
24 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2343	2012 FX35 exits Earth's Hill sphere	10	2	0	0	2012	2012 FT35 closest Earth approach = 1.88 LD
2030	2012 FV23 enters 10-LD bubble	10	3	0	0	1423	2012 EO8 first observed by radar, from Arecibo at 8.86 LD outbound, V=nil
1854	2012 GE enters 10-LD bubble	9	3	0	0	1237	discovery MPEC issued for 2012 FV23
1236	2012 EK5 exits 10-LD bubble	8	3	0	0	1235	discovery MPEC issued for 2012 FU23
						0739	2012 FW35 observed first, by MLS at 25.00 LD, V=21.7 reported, elon. 171.1°
						0612	2012 FP35 observed first, by CSS at 6.28 LD, V=19.5 reported, elon. 161.9°
						0519	2012 FT35 observed first, by MLS at 1.98 LD, V=19.23 calculated, elon. 145.5°
23 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1401	2012 FU23 enters 10-LD bubble	9	3	0	0	2350	2012 FX35 closest Earth approach = 3.67 LD
0152	2012 FP35 enters 10-LD bubble	8	3	0	0	0951	2012 FG last observed optically, by MLS at 30.79 LD outbound, V=21.3 reported
						0748	2012 FM35 observed first, by LINEAR at 4.42 LD, mag 18.6 reported, elon. 142.7°
						0658	2012 FV23 observed first, by CSS at 11.72 LD, V=19.5 reported, elon. 128.8°
						0546	2012 FU23 observed first, by MLS at 11.36 LD, V=20.5 reported, elon. 173.4°
22 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2357	2012 FX35 enters Earth's Hill sphere	7	3	0	0	0909	2012 FM last observed optically, by Holmes/CTIO at 10.58 LD outbound, V=19.7 reported
0542	2012 EO8 exits Earth's Hill sphere	7	2	0	0	0432	2012 EK5 closest Earth approach = 5.82 LD
0148	2012 EJ5 exits 10-LD bubble	7	3	0	0
21 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1931	2012 FS35 enters Earth's Hill sphere	8	3	0	0	2141	2012 EO8 last observed optically, by Great Shefford Obs. at 3.64 LD outbound, R=17.4 reported, elon. 73.4°
1748	2012 FM exits 10-LD bubble	8	2	0	0	1711	2012 EO8 closest Earth approach = 3.61 LD
1613	2012 FM35 exits Earth's Hill sphere	9	2	0	0
1035	2012 FT35 enters Earth's Hill sphere	9	3	0	0
0440	2012 EO8 enters Earth's Hill sphere	9	2	0	0
20 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1
1422	2012 FN exits 10-LD bubble	9	1	0	0
0820	2012 EN5 exits 10-LD bubble	10	1	0	0
0734	2012 DW60 exits 10-LD bubble	11	1	0	0
19 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2030	2012 EK5 enters 10-LD bubble	12	1	0	0	2328	2012 EK5 last observed optically, by Great Shefford Obs. at 9.65 LD inbound, R=18.5 reported
0728	2012 FA71 exits 10-LD bubble	11	1	0	0	2009	2012 FM35 closest Earth approach = 3.67 LD
0454	2012 DH54 exits 10-LD bubble	12	1	0	0
18 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
0926	2012 EO8 enters 10-LD bubble	13	1	0	0	0103	2012 FM closest Earth approach = 8.25 LD
17 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2352	2012 FM35 enters Earth's Hill sphere	12	1	0	0	2341	discovery MPEC issued for 2012 FN
1248	2012 FG exits 10-LD bubble	12	0	0	0	2338	discovery MPEC issued for 2012 FM
1218	2012 EN5 exits Earth's Hill sphere	13	0	0	0	1722	discovery MPEC issued for 2012 FG
						1020	2012 FN last observed optically, by MLS at 8.43 LD outbound, V=21.4 reported
						0948	2012 EJ5 last observed optically, by ARO Westfield at 6.76 LD outbound, V=20.65 calculated
						0741	2012 FA71 closest Earth approach = 7.21 LD - Note: JPL reports an approach uncertainty of +/- 13 minutes.
						0713	2012 FN observed first, by MLS at 8.37 LD, V=20.9 reported, elon. 179.4°
						0618	2012 FM observed first, by CSS at 8.34 LD, V=19.2 reported, elon. 134.0°
16 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1947	2012 FX35 enters 10-LD bubble	13	1	0	0	1256	discovery MPEC issued for 2012 ER10
1731	2012 EP10 exits 10-LD bubble	12	1	0	0	1252	discovery MPEC issued for 2012 EP10
						1245	discovery MPEC issued for 2012 EN10
						0800	2012 FG observed first, by LINEAR at 5.87 LD, mag 17.7 reported, elon. 173.8°
						0153	2012 EL8 closest Earth approach = 7.30 LD - Note: JPL reports an approach uncertainty of +/- 25 minutes.
						0135	discovery MPEC issued for 2012 EO8
15 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1738	2012 FG exits Earth's Hill sphere	13	1	0	0	2213	discovery MPEC issued for 2012 EL8
0813	2012 EN10 exits 10-LD bubble	13	2	0	0	2155	2012 EN5 closest lunar approach = 2.39 LD
0758	2012 FA71 enters 10-LD bubble	14	2	0	0	2104	2012 EN5 closest Earth approach = 1.43 LD
						1138	2012 EN5 last observed optically, by Bisei at 1.68 LD inbound, R=17.0 reported
						0802	2012 ER10 observed first, by MLS at 22.67 LD, V=20.3 reported, elon. 171.6°
						0749	2012 DJ54 last observed optically, by Tholen team/Mauna Kea at 27.07 LD outbound, R=22.7 reported
						0652	2012 EL8 last observed optically, by ARO Westfield at 7.32 LD inbound, V=20.1 reported
						0631	2012 EP10 observed first, by MLS at 9.00 LD, V=21.8 reported, elon. 167.8°
						0623	2012 BV61 last observed optically, by ARO Westfield at 69.76 LD outbound, V=21.9 reported
						0528	2012 EN10 observed first, by CSS at 9.84 LD, V=19.0 reported, elon. 160.6°
						0425	2012 EO8 observed first, by CSS at 18.72 LD, V=18.9 reported, elon. 145.2°
14 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2346	2012 DW60 exits Earth's Hill sphere	13	2	0	0	2234	discovery MPEC issued for 2012 EN5
2338	2012 FT35 enters 10-LD bubble	13	3	0	0	2232	discovery MPEC issued for 2012 EM5
1346	2012 EM5 exits 10-LD bubble	12	3	0	0	2218	2012 EM5 last observed optically, by Schiaparelli Obs. at 11.53 LD outbound, R=18.5 reported
0742	2012 FM enters 10-LD bubble	13	3	0	0	1859	2012 FG closest lunar approach = 2.42 LD
0552	2012 EN5 enters Earth's Hill sphere	12	3	0	0	1821	discovery MPEC issued for 2012 EK5
						1818	discovery MPEC issued for 2012 EJ5
						1814	discovery MPEC issued for 2012 EG5
						1732	2012 FG closest Earth approach = 1.63 LD
						0859	2012 EL8 observed first, by MLS at 7.39 LD, V=21.6 reported, elon. 161.6°
						0633	2012 EN5 observed first, by CSS at 3.83 LD, V=17.9 reported, elon. 166.1°
						0615	2012 EM5 observed first, by CSS at 8.74 LD, V=17.8 reported, elon. 162.5°
13 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2124	2012 FS35 enters 10-LD bubble	12	2	0	0	1135	2012 EA last observed optically, by Spacewatch 1.8m at 11.77 LD outbound, V=22.00 calculated
1727	2012 FG enters Earth's Hill sphere	11	2	0	0	1037	2012 EK5 observed first, by MLS at 31.17 LD, V=20.9 reported, elon. 152.8°
						0841	2012 EJ5 observed first, by CSS at 5.52 LD, V=19.2 reported, elon. 161.3°
						0840	2012 EJ5 closest Earth approach = 5.52 LD
						0714	2012 EG5 observed first, by PS1 at 36.04 LD, g=21.0 reported, elon. 140.0°
12 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
0634	2012 DH54 exits Earth's Hill sphere	11	1	0	0	2223	2012 EM5 closest Earth approach = 5.62 LD
						2215	2012 EN10 closest Earth approach = 8.10 LD
						1440	2012 DW60 closest Earth approach = 2.49 LD
						0939	2012 DW60 last observed optically, by MRO at 2.51 LD inbound, R=17.8 reported, elon. 99.6°
						0320	2012 DH54 last observed optically, by MRO at 3.82 LD outbound, R=19.3 reported, elon. 85.4°
11 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1
2217	2012 FG enters 10-LD bubble	11	2	0	0
2048	2012 EA exits 10-LD bubble	10	2	0	0
0952	2012 EN5 enters 10-LD bubble	11	2	0	0
0735	2012 EM1 exits 10-LD bubble	10	2	0	0
0659	2012 EM5 enters 10-LD bubble	11	2	0	0
10 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1201	2012 EN10 enters 10-LD bubble	10	2	0	0	0903	2012 DH54 closest Earth approach = 3.32 LD
0535	2012 DW60 enters Earth's Hill sphere	9	2	0	0	0212	2012 FN closest Earth approach = 6.65 LD - Note: JPL reports an approach uncertainty of +/- 4 hours and 21 minutes.
9 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1711	2008 EJ85 exits 10-LD bubble	9	1	0	0	0615	2012 DW60 last observed by radar, from Arecibo at 4.89 LD inbound, V=18.49 calculated
						0555	2012 DW60 first observed by radar, from Arecibo at 4.91 LD inbound, V=18.49 calculated
8 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2227	2012 ER10 exits 10-LD bubble	10	1	0	0	0609	2012 DH54 last observed by radar, from Arecibo at 4.02 LD inbound, V=19.12 calculated
1137	2012 DH54 enters Earth's Hill sphere	11	1	0	0	0540	2012 DH54 first observed by radar, from Arecibo at 4.04 LD inbound, V=19.12 calculated
7 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1302	2012 EP10 exits Earth's Hill sphere	11	0	0	0	0605	2012 EM1 last observed optically, by Holmes/CTIO at 7.65 LD outbound, V=19.1 reported
6 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1322	2012 FM35 enters 10-LD bubble	11	1	0	0	2227	2008 EJ85 closest Earth approach = 9.15 LD - Note: JPL reports an approach uncertainty of +/- 2 days, 8 hours, and 47 minutes.
						2016	2012 EM1 closest Earth approach = 7.62 LD
5 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2206	2012 EA exits Earth's Hill sphere	10	1	0	0	2305	2012 ER10 closest Earth approach = 7.39 LD
1915	2012 EL8 enters 10-LD bubble	10	2	0	0
1735	2012 DS32 exits 10-LD bubble	9	2	0	0
1701	2012 DU60 exits 10-LD bubble	10	2	0	0
0908	2012 DN31 exits 10-LD bubble	11	2	0	0
4 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1
2158	2012 DW60 enters 10-LD bubble	12	2	0	0
1903	2012 EJ5 enters 10-LD bubble	11	2	0	0
1628	2012 EZ1 exits 10-LD bubble	10	2	0	0
0407	2008 EJ85 enters 10-LD bubble	11	2	0	0
0134	2012 DR32 exits 10-LD bubble	10	2	0	0
3 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
1607	2012 EP10 more than one LD from Moon	11	2	0	0	1919	discovery MPEC issued for 2012 EZ1
						1214	discovery MPEC issued for 2012 EM1
						1114	2012 DU60 closest Earth approach = 9.09 LD
						0953	2012 EA closest Earth approach = 2.62 LD
						0904	2012 EZ1 last observed optically, by Spacewatch 1.8m at 5.99 LD outbound, V=20.51 calculated
						0356	2012 DU60 last observed optically, by Schiaparelli Obs. at 9.11 LD inbound, V=18.98 calculated
2 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2323	2012 ER10 enters 10-LD bubble	11	2	1	0	1649	2012 DR32 closest Earth approach = 8.68 LD
2104	2012 CS46 exits 10-LD bubble	10	2	1	0	1045	2012 EP10 closest lunar approach = 0.80 LD
1635	2012 EZ1 exits Earth's Hill sphere	11	2	1	0	0851	2012 EM1 observed first, by MLS at 10.05 LD, V=18.3 reported, elon. 178.6°
1553	2012 DS32 exits Earth's Hill sphere	11	3	1	0	0608	2012 EZ1 observed first, by CSS at 2.58 LD, V=19.1 reported, elon. 166.8°
1013	2012 EM1 enters 10-LD bubble	11	4	1	0	0411	2012 EP10 closest Earth approach = 1.39 LD
1 March 2012
UT	Boundary Transitions	<10	<HS	M<1	E<1		Events
2037	2012 DJ54 exits 10-LD bubble	10	4	1	0	2140	2012 DN31 closest Earth approach = 8.01 LD
1648	2012 EZ1 exits Earth-Moon system	11	4	1	0	2030	discovery MPEC issued for 2012 EA
1445	2012 DH54 enters 10-LD bubble	11	4	1	1	1858	discovery MPEC issued for 2012 DW60
1409	2012 EZ1 more than one LD from Moon	10	4	1	1	1852	discovery MPEC issued for 2012 DU60
0807	2012 DR32 enters 10-LD bubble	10	4	2	1	1035	2012 EZ1 closest Earth approach = 0.60 LD
0545	2012 DU60 enters 10-LD bubble	9	4	2	1	0832	2012 EZ1 closest lunar approach = 0.74 LD
0435	2012 EP10 within one LD of Moon	8	4	2	1	0245	2012 EA observed first, by CSS at 3.72 LD, V=18.3 reported, elon. 130.8°
0422	2012 EZ1 enters Earth-Moon system	8	4	1	1	0036	2012 DS32 closest Earth approach = 1.87 LD
0255	2012 EZ1 within one LD of Moon	8	4	1	0

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EBN Timeline for March 2012