<10=less than 10 LD from Earth

EBN Timeline for January 2012

<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)
31 Jan. 2012
UTEvents
22162012 CU closest Earth approach = 2.41 LD
1923discovery MPEC issued for 2012 BA102
30 Jan. 2012
UTEvents
22102012 BD14 closest Earth approach = 5.79 LD
05072012 BA102 designation credited to LINEAR at 6.45 LD outbound, mag 18.7 reported, elon. 170.8°
01112012 BD14 last observed optically, by ARO Westfield at 5.96 LD inbound, V=19.1 reported
29 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
23242012 BW13 exits 10-LD bubble400010502012 BA77 last observed optically, by Tholen team/Mauna Kea at 49.62 LD outbound, R=21.5 reported
10162012 BF27 last observed optically, by Spacewatch 1.8m at 26.64 LD outbound, V=21.53 calculated
0953425755 2011 CP4 observed first, by ARO Westfield at 175.33 LD inbound, V=21.1 reported, elon. 122.6°
28 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
18272012 BX34 exits Earth SOI50001215discovery MPEC issued for 2012 BA77
16322012 BS1 exits 10-LD bubble510000432012 BX34 closest lunar approach = 0.76 LD
07552012 BX34 more than one LD from Moon6100
02262012 BX34 exits Earth-Moon system6110
27 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
22422012 CU enters 10-LD bubble61112017discovery MPEC issued for 2012 BV61
17342012 BX34 within one LD of Moon511115242012 BX34 closest Earth approach = 0.17 LD
04222012 BX34 enters Earth-Moon system510113402012 BX34 last observed optically, by CSS at 0.23 LD inbound, V=13.95 calculated
0704distant 2010 JK1 last observed optically, by Sandlot Obs. at 64.81 LD, R=20.9 reported
0609distant 2010 JK1 observed first, by Sandlot Obs. at 64.80 LD, R=21.0 reported, elon. 173.7°
02292012 BD14 first observed by radar, from Arecibo at 8.45 LD inbound, V=19.79 calculated
26 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
21132012 BW13 exits Earth SOI510017122012 BA102 closest Earth approach = 2.63 LD
17302012 BY1 exits 10-LD bubble52001527discovery MPEC issued for 2012 BX34
12212012 BX34 enters Earth SOI62001527discovery MPEC issued for 2012 BX34
1527discovery MPEC issued for 2012 BX34
10002012 BV61 designation credited to CSS at 11.16 LD outbound, V=19.8 reported, elon. 126.7°
09332012 BW13 closest lunar approach = 2.55 LD
08552011 YH40 last observed optically, by Holmes/CTIO at 20.39 LD outbound, V=19.7 reported, elon. 69.1°
06022012 BW13 closest Earth approach = 1.73 LD
25 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
21032012 BD14 enters 10-LD bubble610010242012 BU1 last observed optically, by Spacewatch 1.8m at 23.37 LD outbound, V=22.10 calculated
14522012 BW13 enters Earth SOI510010212012 BX34 designation credited to CSS at 4.69 LD inbound, V=19.9 reported, elon. 126.2°
11432012 BV1 exits 10-LD bubble500007212012 BX1 last observed optically, by ARO Westfield at 26.24 LD outbound, V=19.5 reported
03442012 BV61 exits 10-LD bubble6000
24 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
16092012 BY1 exits Earth SOI700021272012 BW13 last observed optically, by Paus Obs. at 3.99 LD inbound, R=18.1 reported
01442012 BF27 exits 10-LD bubble710013302012 BY1 closest lunar approach = 2.34 LD
01252012 BY1 enters Earth SOI81001221discovery MPEC issued for 2012 BF27
08482012 BA77 designation credited to PS1 at 34.31 LD outbound, w=21.9 reported, elon. 165.5°
08472012 BY1 closest Earth approach = 2.04 LD
03062012 BZ13 last observed optically, by Holmes/CTIO at 14.21 LD outbound, V=20.2 reported
02352012 BY1 last observed optically, by Great Shefford Obs. at 2.31 LD inbound, R=16.4 reported
23 Jan. 2012
UTEvents
21292012 BS1 closest Earth approach = 3.12 LD
08052012 BF27 designation credited to CSS at 7.77 LD outbound, V=18.8 reported, elon. 140.8°
22 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1
21562012 BX34 enters 10-LD bubble8000
17472012 BK14 exits 10-LD bubble7000
17182012 AQ10 exits 10-LD bubble8000
12482012 BW13 enters 10-LD bubble9000
05512012 BL14 exits 10-LD bubble8000
00072012 BY1 enters 10-LD bubble9000
21 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
11232012 BV1 exits Earth SOI80001517discovery MPEC issued for 2012 BL14
09182012 BF27 exits Earth SOI81001515discovery MPEC issued for 2012 BK14
04332012 BV1 more than one LD from Moon82001404discovery MPEC issued for 2012 BD14
1402discovery MPEC issued for 2012 BC14
1356discovery MPEC issued for 2012 BZ13
1352discovery MPEC issued for 2012 BW13
11502012 BL14 last observed optically, by MLS at 6.68 LD outbound, V=19.9 reported
11212012 BS1 last observed optically, by Spacewatch 1.8m at 5.73 LD inbound, V=20.00 calculated
11172012 BC14 last observed optically, by MLS at 60.08 LD outbound, V=21.5 reported
11102012 BK14 last observed optically, by Spacewatch 1.8m at 8.59 LD outbound, V=20.03 calculated
08582012 BL14 designation credited to MLS at 6.15 LD outbound, V=19.9 reported, elon. 165.9°
07362012 BK14 designation credited to CSS at 8.43 LD outbound, V=20.2 reported, elon. 164.7°
20 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
23052012 BA102 enters 10-LD bubble821021572012 BF27 closest Earth approach = 1.90 LD
22092012 BZ13 exits 10-LD bubble72102134discovery MPEC issued for 2012 BO11
20252011 YH40 exits 10-LD bubble821017472012 BV1 closest lunar approach = 0.55 LD
14112012 BV1 exits Earth-Moon system921017362012 BF27 closest lunar approach = 1.13 LD
11452012 BL14 exits Earth SOI921107132012 BV1 closest Earth approach = 0.83 LD
10362012 BF27 enters Earth SOI931107122012 BD14 designation credited to MLS at 18.30 LD inbound, V=20.8 reported, elon. 176.1°
06562012 BV1 within one LD of Moon921105002012 AP10 last observed optically, by Spacewatch 1.8m at 16.79 LD outbound, V=21.62 calculated
00152012 BV1 enters Earth-Moon system920104572012 BC14 designation credited to MLS at 56.17 LD outbound, V=22.0 reported, elon. 167.6°
04412012 BZ13 designation credited to CSS at 9.47 LD outbound, V=17.7 reported, elon. 175.2°
0233distant 207398 2006 AS2 last observed optically, by Spacewatch 0.9m, V=20.0 reported
00332012 BL14 closest Earth approach = 1.20 LD - Note: JPL reports an approach uncertainty of +/- 29 minutes.
19 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
13212012 BL14 enters Earth SOI92002145discovery MPEC issued for 2012 BY1
03042012 BV1 enters Earth SOI91002143discovery MPEC issued for 2012 BX1
02562012 BS1 enters 10-LD bubble90002141discovery MPEC issued for 2012 BV1
00132012 BO11 exits 10-LD bubble80002139discovery MPEC issued for 2012 BU1
2137discovery MPEC issued for 2012 BT1
2134discovery MPEC issued for 2012 BS1
21072012 BL14 closest lunar approach = 1.86 LD
11482012 BO11 designation credited to CSS at 10.78 LD outbound, V=19.3 reported, elon. 139.9°
11162012 BV1 last observed optically, by MLS at 1.80 LD inbound, V=19.9 reported
08102012 BT1 last observed optically, by MLS at 10.94 LD outbound, V=19.8 reported
04582012 BW13 designation credited to MLS at 18.80 LD inbound, V=20.5 reported, elon. 167.5°
18 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
22532012 BU1 exits 10-LD bubble900023022012 BZ13 closest Earth approach = 9.10 LD
1925distant 207398 2006 AS2 observed first, by Herrenberg Obs., V=19.9 reported
09212012 BY1 designation credited to MLS at 24.94 LD inbound, V=20.0 reported, elon. 175.4°
08412012 BX1 designation credited to CSS at 11.37 LD outbound, V=18.0 reported, elon. 151.0°
08202012 BV1 designation credited to MLS at 3.85 LD inbound, V=21.1 reported, elon. 178.8°
07412012 BU1 designation credited to MLS at 8.78 LD outbound, V=19.7 reported, elon. 177.0°
07402012 BT1 designation credited to MLS at 10.26 LD outbound, V=20.1 reported, elon. 178.3°
06552012 BS1 designation credited to MLS at 11.60 LD inbound, V=21.1 reported, elon. 179.9°
17 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
20342012 BT1 exits 10-LD bubble1000006022012 AQ10 last observed optically, by Holmes/CTIO at 2.51 LD outbound, V=18.6 reported
19152012 BL14 enters 10-LD bubble11000
18122012 BF27 enters 10-LD bubble10000
11502012 BX1 exits 10-LD bubble9000
02202012 AQ10 exits Earth SOI10000
16 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
23482012 BZ13 enters 10-LD bubble1010021342012 AQ10 closest lunar approach = 2.08 LD
18352012 BV61 closest Earth approach = 4.90 LD
17362011 YH40 closest Earth approach = 5.36 LD
12522012 AQ10 closest Earth approach = 2.24 LD
05342012 AW10 last observed optically, by ARO Westfield at 16.54 LD outbound, V=20.0 reported
15 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
23252012 AQ10 enters Earth SOI910009212012 BK14 closest Earth approach = 4.25 LD - Note: JPL reports an approach to 4.26 LD (0.12 minimum) at 0637 UTC with an uncertainty of +/- one day, 23 hours, and 22 minutes.
02582012 BV1 enters 10-LD bubble900009172012 BT1 closest Earth approach = 9.35 LD - Note: JPL reports an approach to 9.34 LD (9.27 minimum) with an uncertainty of +/- 5 minutes.
05202011 YH40 last observed by radar, from DSS-14 at 6.20 LD inbound, V=14.83 calculated
04302011 YH40 first observed by radar, from DSS-14 at 6.24 LD inbound, V=14.83 calculated
00522012 BX1 closest Earth approach = 8.07 LD
14 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
10222012 BA77 exits 10-LD bubble80002211discovery MPEC issued for 2012 AW10
11522012 BU1 closest Earth approach = 3.64 LD
08562012 AW10 designation credited to CSS at 12.09 LD outbound, V=19.0 reported, elon. 161.3°
13 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
14142012 AQ exits 10-LD bubble90002159discovery MPEC issued for 2012 AQ10
11312012 AW10 exits 10-LD bubble1000018152012 BO11 closest Earth approach = 3.94 LD - Note: JPL reports an approach to 3.95 LD (3.94 minimum) .
06392012 AQ10 designation credited to CSS at 5.63 LD inbound, V=17.9 reported, elon. 150.5°
06092012 BA77 closest Earth approach = 9.39 LD
12 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1
21272012 BT1 enters 10-LD bubble11000
15262011 YH40 enters 10-LD bubble10000
13412012 BX1 enters 10-LD bubble9000
01552012 BA77 enters 10-LD bubble8000
11 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
21582012 AP10 exits 10-LD bubble70001305discovery MPEC issued for 2012 AP10
02002012 AP10 designation credited to MLS at 9.32 LD outbound, V=19.4 reported, elon. 131.0°
10 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1
09252012 AQ10 enters 10-LD bubble8000
00332012 BU1 enters 10-LD bubble7000
9 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
18042011 YL28 exits 10-LD bubble600015362012 AW10 closest Earth approach = 3.41 LD
8 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1
13112012 BO11 enters 10-LD bubble7000
08352012 BV61 enters 10-LD bubble6000
00072012 BK14 enters 10-LD bubble5000
7 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1
17362011 YB63 exits 10-LD bubble4000
5 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1
19372012 AW10 enters 10-LD bubble5000
4 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
09042011 YD29 exits 10-LD bubble400008212011 YL28 closest Earth approach = 3.70 LD
3 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
15492011 YB63 exits Earth SOI500020392011 YL28 last observed optically, by Great Shefford Obs. at 3.79 LD inbound, R=18.2 reported, elon. 88.5°
10442012 BC14 exits 10-LD bubble510009552012 AQ last observed optically, by Spacewatch 1.8m at 3.42 LD outbound, V=21.62 calculated
0118discovery MPEC issued for 2012 AQ
0116discovery MPEC issued for 2011 YC63
0114discovery MPEC issued for 2011 YB63
2 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
20182011 YB63 exits Earth-Moon system610010142011 YB63 closest Earth approach = 0.61 LD
10322012 AP10 exits Earth SOI610100092011 YB63 closest lunar approach = 0.82 LD
06542011 YB63 more than one LD from Moon6201
00092011 YB63 enters Earth-Moon system6211
1 Jan. 2012
UTBoundary Transitions<10<SIM<1E<1Events
19152012 AQ exits Earth SOI621008032011 YX15 last observed optically, by ARO Westfield at 12.10 LD outbound, V=19.5 reported
17252011 YB63 within one LD of Moon631007462011 YC63 last observed optically, by MLS at 9.41 LD outbound, V=21.3 reported
13172011 WS95 exits 10-LD bubble630006082011 YD29 last observed optically, by ARO Westfield at 6.85 LD outbound, V=19.9 reported
11072011 YC63 exits 10-LD bubble730005522012 AQ designation credited to MLS at 2.06 LD outbound, V=20.8 reported, elon. 156.6°
04382011 YB63 enters Earth SOI830005432011 YB63 last observed optically, by MLS at 2.32 LD inbound, V=20.8 reported
03522011 YE29 exits 10-LD bubble820005102011 YE40 last observed optically, by Holmes/CTIO at 10.91 LD outbound, V=19.0 reported
02512011 YC40 exits 10-LD bubble920004582011 YE29 last observed optically, by Holmes/CTIO at 10.10 LD outbound, V=19.3 reported
04512012 BC14 closest Earth approach = 7.71 LD - Note: JPL reports an approach to 7.67 LD (7.08 minimum) at 0757 UTC with an uncertainty of +/- 15 hours and one minute.


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