<10=less than 10 LD from Earth

EBN Timeline for January 2018

<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 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1
16082018 AJ exits 10-LD bubble1000
23 Jan. 2018
UTEvents
12282018 AJ closest Earth approach = 4.65 LD - Note: JPL reports an approach to 4.65 LD (4.60 minimum) with an uncertainty of +/- 4 minutes.
22 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1
06152018 AG4 exits 10-LD bubble2000
20 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1
06532018 AS2 exits 10-LD bubble3000
19 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1
03332018 AU2 exits 10-LD bubble4000
18 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1
09262018 AG4 exits Earth SOI5000
17 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
03392018 AT2 exits 10-LD bubble510019542018 AG4 closest lunar approach = 2.02 LD
10402018 AG4 closest Earth approach = 1.40 LD
16 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
11552018 AG4 enters Earth SOI610013112018 AV2 closest Earth approach = 6.65 LD - Note: JPL reports an approach to 6.65 LD (6.62 minimum) at 1318 UTC with an uncertainty of +/- 2 days, 17 hours, and 34 minutes.
10422018 AJ enters 10-LD bubble6000
15 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
16512018 AS2 exits Earth SOI50001843discovery MPEC issued for 2018 AA4
1834discovery MPEC issued for 2018 AG4
09362018 AA4 last observed optically, by Spacewatch 0.9m at 13.04 LD outbound, V=19.9 reported
07272018 AV2 last observed optically, by Spacewatch 1.8m at 6.65 LD inbound, R=20.6 reported
06062018 AG4 last observed optically, by Wiggins Obs. at 4.73 LD inbound, mag 17.9 reported
14 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
18582018 AJ3 exits 10-LD bubble510021312018 AS2 closest lunar approach = 1.10 LD
01322018 AA4 exits 10-LD bubble61002055discovery MPEC issued for 2018 AJ3
1319discovery MPEC issued for 2018 AV2
13192017 VR12 last observed optically, by ATLAS Haleakala at 69.64 LD inbound, o=18.6 reported
1240discovery MPEC issued for 2018 AU2
12162018 AU2 closest Earth approach = 2.73 LD
11172018 AS2 closest Earth approach = 1.16 LD
1103distant 450894 2008 BT18 last observed optically, by MLS at 371.60 LD, G=20.2 reported
10232018 AT2 last observed optically, by Steward Mt. Lemmon Sta. at 5.75 LD outbound, G=19.9 reported
09282018 AJ3 last observed optically, by Steward Mt. Lemmon Sta. at 9.82 LD outbound, G=20.4 reported
09282018 AH last observed optically, by CSS at 37.63 LD outbound, G=18.9 reported
09212017 VA15 last observed optically, by ARO Westfield at 70.92 LD outbound, V=23.1 reported
09022017 YR3 last observed optically, by Steward Mt. Lemmon Sta. at 31.16 LD outbound, G=21.2 reported
08132017 XN60 last observed optically, by ARO Westfield at 64.25 LD outbound, V=23.3 reported
0712distant 2008 UB95 last observed optically, by ARO Westfield at 100.01 LD, V=23.3 reported
0631distant 2008 UB95 observed first, by ARO Westfield at 100.06 LD, V=23.1 reported, elon. 155.1°
05592018 AG4 designation credited to CSS at 6.73 LD inbound, G=18.3 reported, elon. 148.4°
05432018 AJ last observed optically, by CSS at 12.53 LD inbound, G=17.5 reported
04512018 AU2 last observed optically, by Steward Mt. Lemmon Sta. at 2.80 LD inbound, G=17.9 reported
0142discovery MPEC issued for 2018 AT2
0136discovery MPEC issued for 2018 AS2
13 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
05432018 AS2 enters Earth SOI710013252018 AS2 last observed optically, by MLS at 1.94 LD inbound, G=18.2 reported
07492018 AV2 designation credited to MLS at 6.67 LD inbound, G=21.0 reported, elon. 161.5°
07072018 AA4 designation credited to CSS at 8.31 LD outbound, V=18.49 calculated, elon. 160.4°
06092017 YH1 last observed optically, by Steward Mt. Lemmon Sta. at 88.55 LD outbound, G=19.7 reported
05502018 AU2 designation credited to MLS at 3.80 LD inbound, G=18.3 reported, elon. 154.8°
12 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
15242018 AG4 enters 10-LD bubble70001427distant 208023 1999 AQ10 last observed optically, by ATLAS Mauna Loa at 60.56 LD, o=17.8 reported
00212018 AT2 exits Earth SOI600008002018 AT2 designation credited to CSS at 2.77 LD outbound, V=18.05 calculated, elon. 157.7°
07562018 AS2 designation credited to MLS at 3.84 LD inbound, G=19.6 reported, elon. 150.8°
07292018 AJ3 designation credited to MLS at 8.95 LD outbound, G=20.2 reported, elon. 164.1°
05092017 YW3 last observed optically, by Steward Mt. Lemmon Sta. at 16.77 LD outbound, G=20.3 reported
0343distant 2013 AT72 last observed optically, by Tenagra II Obs. at 36.37 LD, R=20.9 reported
0332distant 2013 AT72 observed first, by Tenagra II Obs. at 36.36 LD, R=21.6 reported, elon. 125.7°
11 Jan. 2018
UTEvents
06492018 AT2 closest lunar approach = 2.71 LD
01092018 AT2 closest Earth approach = 1.83 LD
10 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
01572018 AT2 enters Earth SOI610013422017 VT14 last observed optically, by PS1 at 56.63 LD outbound, i=20.6 reported
1005distant 207398 2006 AS2 last observed optically, by PS1 at 274.39 LD, w=21.4 reported
0911distant 207398 2006 AS2 observed first, by PS1 at 274.43 LD, w=21.6 reported, elon. 143.3°
03292018 AA4 closest Earth approach = 3.53 LD
9 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
21272018 AU2 enters 10-LD bubble600014092006 XY last observed optically, by PS1 at 28.05 LD outbound, i=20.8 reported
8 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
15502018 AS2 enters 10-LD bubble500004102017 XS last observed optically, by Spacewatch 0.9m at 74.31 LD outbound, R=21.0 reported
7 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
04412017 YS1 exits 10-LD bubble40001303discovery MPEC issued for 2017 YV8
1303discovery MPEC issued for 2017 WF30
1303discovery MPEC issued for 2017 WE30
6 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
18092017 YD7 exits 10-LD bubble50002350discovery MPEC issued for 2018 AH
05112018 AA4 enters 10-LD bubble60002346discovery MPEC issued for 2018 AJ
5 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
10172018 AH exits 10-LD bubble500012142018 AJ3 closest Earth approach = 7.58 LD
10352017 YM1 last observed optically, by Spacewatch/KPNO at 51.70 LD outbound, V=22.87 calculated
06142017 YV8 last observed optically, by Tholen 2.24m at 33.43 LD outbound, G=23.85 reported
04082018 AJ designation credited to MLS at 23.66 LD inbound, G=20.8 reported, elon. 139.6°
4 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
22172018 AT2 enters 10-LD bubble600013222018 AH designation credited to ATLAS Mauna Loa at 7.34 LD outbound, o=15.6 reported, elon. 129.3°
3 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
00212017 YU1 exits 10-LD bubble500014112018 AH observed first, by PS1 at 4.40 LD outbound, i=14.6 reported, elon. 124.7°
00392017 YD7 closest Earth approach = 4.73 LD
2 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
22102018 AH exits Earth SOI60002018discovery MPEC issued for 2017 YF8
09212018 AH exits Earth-Moon system610009562018 AH closest lunar approach = 1.42 LD
08492017 YZ4 exits 10-LD bubble610104242018 AH closest Earth approach = 0.77 LD
1 Jan. 2018
UTBoundary Transitions<10<SIM<1E<1Events
23322017 YW3 exits 10-LD bubble710122562017 YD7 last observed optically, by Great Shefford Obs. at 5.37 LD inbound, G=19.4 reported
23272018 AH enters Earth-Moon system810112372017 YF8 last observed optically, by Spacewatch/KPNO at 18.24 LD outbound, V=21.62 calculated
22342017 YE7 exits 10-LD bubble8100
10382018 AH enters Earth SOI9100
07592017 YD2 exits 10-LD bubble9000


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