The past week or so has seen the announcement of 57 new NEAs. The discovery tally breaks down as such: 27 Mount Lemmon, 13 Catalina, 11 LINEAR, 3 PANSTARRS, 2 Spacewatch, 1 Siding Spring.
A handful of the objects made very close approaches to Earth. The most interesting being 2010 WA. With an H of 30.0, this object is one of the smallest asteroids ever observed at a size of 2 to 6 meters across. It made it passed closest to Earth around 4 hours UT on November 17 at a distance of 0.00026 AU (or just over 24,000 miles or 38,000 km). That is only a tenth of the distance to the Moon. Such a small miss distance makes 2010 WA the 7th closest approach to the Earth by an asteroid (that we know of, there have probably been many many more little ones that passed sight unseen).
Asteroid Type Mag MOID a e i H Discoverer MPEC 2010 WJ Amor 18 0.469 1.86 0.30 27.7 17.9 LINEAR 2010-W12 2010 WH Amor 19 0.445 2.39 0.47 21.9 18.9 LINEAR 2010-W11 2010 WC Aten 18 0.004 0.81 0.35 7.6 25.3 Catalina 2010-W06 2010 WB Apollo 16 0.005 1.35 0.29 5.5 23.8 Catalina 2010-W05 2010 WA Apollo 20 0.0002 2.00 0.57 6.5 30.0 Mount Lemmon 2010-W03 2010 VU198 Amor 21 0.311 1.81 0.38 30.6 18.4 Mount Lemmon 2010-W08 2010 VW194 Apollo 17 0.001 1.79 0.46 2.0 26.3 LINEAR 2010-W04 2010 VY190 Amor 17 0.298 1.77 0.28 20.5 18.6 Mount Lemmon 2010-V148 2010 VC140 Apollo 18 0.002 1.50 0.34 1.5 27.8 Catalina 2010-V147 2010 VB140 Apollo 20 0.004 2.29 0.58 3.2 24.9 Catalina 2010-V146 2010 VA140 Apollo 20 0.002 1.70 0.47 4.6 26.4 Mount Lemmon 2010-V145 2010 VZ139 Amor 18 0.058 1.13 0.07 8.9 23.0 Catalina 2010-V144 2010 VY139 Amor 19 0.088 2.42 0.56 9.4 20.4 LINEAR 2010-V143 2010 VX139 Aten 19 0.095 0.96 0.16 21.3 20.4 LINEAR 2010-V142 2010 VW139 Amor 19 0.061 1.62 0.37 10.4 24.2 Mount Lemmon 2010-V141 2010 VV139 Apollo 19 0.064 1.17 0.16 31.5 21.8 Mount Lemmon 2010-V140 2010 VR139 Apollo 19 0.002 1.70 0.46 2.1 26.8 Catalina 2010-V138 2010 VQ139 Apollo 21 0.001 1.99 0.55 1.4 29.2 Mount Lemmon 2010-V137 2010 VP139 Apollo 20 0.0008 1.12 0.21 1.7 29.1 Mount Lemmon 2010-V136 2010 VO139 Apollo 20 0.008 2.08 0.70 7.7 26.5 Mount Lemmon 2010-V135 2010 VN139 Apollo 19 0.026 1.87 0.74 1.5 24.4 Mount Lemmon 2010-V134 2010 VM139 Apollo 20 0.012 1.42 0.29 9.6 25.4 Mount Lemmon 2010-V133 2010 VL139 Apollo 21 0.006 1.86 0.51 3.6 26.8 Mount Lemmon 2010-V132 2010 VK139 Aten 16 0.008 0.78 0.29 27.9 23.4 Catalina 2010-V131 2010 VJ139 Apollo 21 0.065 1.35 0.37 8.9 22.0 Mount Lemmon 2010-V130 2010 VF139 Amor 20 0.125 2.51 0.56 1.6 23.9 Mount Lemmon 2010-V128 2010 VE139 Amor 20 0.224 2.42 0.50 6.8 22.1 Mount Lemmon 2010-V127 2010 VD139 Aten 20 0.013 0.85 0.24 3.8 26.0 Mount Lemmon 2010-V126 2010 VD99 Apollo 20 0.045 1.84 0.52 8.0 24.5 Spacewatch 2010-V125 2010 VB99 Apollo 18 0.053 1.34 0.40 49.9 21.3 LINEAR 2010-V122 2010 VA99 Apollo 18 0.042 1.44 0.40 37.2 22.7 LINEAR 2010-V121 2010 VW98 Amor 19 0.123 1.60 0.33 12.1 22.1 Mount Lemmon 2010-V119 2010 VV98 Apollo 18 0.002 1.98 0.58 1.6 24.5 LINEAR 2010-V118 2010 VU98 Apollo 20 0.029 1.01 0.26 6.9 24.7 Mount Lemmon 2010-V117 2010 VQ98 Apollo 19 0.002 1.04 0.05 1.7 27.9 Catalina 2010-V114 2010 VP98 Apollo 20 0.119 1.34 0.29 22.7 24.5 Mount Lemmon 2010-V113 2010 VO98 Apollo 20 0.028 1.45 0.45 7.8 25.3 Mount Lemmon 2010-V112 2010 VN98 Amor 19 0.116 1.53 0.29 27.1 22.0 LINEAR 2010-V111 2010 VA76 Amor 21 0.124 2.14 0.49 3.9 26.9 PANSTARRS 2010-V103 2010 VZ75 Amor 22 0.175 1.52 0.24 11.5 25.5 PANSTARRS 2010-V102 2010 VW75 Amor 21 0.050 2.34 0.55 1.0 21.7 Mount Lemmon 2010-V101 2010 VD72 Aten 17 0.015 0.92 0.18 19.2 21.8 Catalina 2010-V100 2010 VC72 Apollo 22 0.016 1.16 0.14 5.9 23.6 PANSTARRS 2010-V99 2010 VB72 Amor 19 0.124 1.22 0.09 16.3 20.6 Catalina 2010-V98 2010 VA72 Apollo 20 0.058 2.55 0.60 3.5 23.1 Mount Lemmon 2010-V97 2010 VZ71 Apollo 20 0.297 3.24 0.69 23.9 19.2 Mount Lemmon 2010-V96 2010 VY71 Amor 19 0.071 2.55 0.58 3.0 24.1 Catalina 2010-V95 2010 VS71 Apollo 18 0.015 1.43 0.66 2.3 23.8 Catalina 2010-V93 2010 VN65 Apollo 19 0.227 1.63 0.41 23.9 20.1 Spacewatch 2010-V92 2010 VM65 Apollo 18 0.055 1.06 0.03 24.8 23.5 Catalina 2010-V91 2010 VL65 Apollo 19 0.007 1.07 0.14 4.7 28.4 LINEAR 2010-V86 2010 VC40 Amor 21 0.179 2.51 0.54 6.6 24.0 Mount Lemmon 2010-V83 2010 VB40 Amor 20 0.075 2.78 0.62 3.4 24.7 Mount Lemmon 2010-V82 2010 VA40 Apollo 20 0.036 2.40 0.57 2.0 26.3 Mount Lemmon 2010-V81 2010 VX39 Apollo 19 0.065 1.84 0.43 11.4 19.1 LINEAR 2010-V78 2010 SC41 Apollo 21 0.001 1.86 0.61 0.2 19.5 Mount Lemmon 2010-V90 2010 RF181 Apollo 19 0.121 2.21 0.55 6.3 20.7 Siding Spring 2010-W13 Comet Type T q a e i Mag Period MPEC None Type Aten - Earth crossing with semi-major axis (avg distance from Sun) < 1 AU Apollo - Earth crossing with semi-major axis (avg distance from Sun) > 1 AU Amor - non-Earth crossing with perihelion distance < 1.3 AU JFC - Jupiter family comet HFC - Halley family comet LPC - Long-period comet MBC - Main belt comet ECC - Suspected extinct or dormant (or just unrecognized) comet T - Date of Perihelion MOID - Minimum Orbit Intercept Distance, minimum distance between asteroid and Earth's orbit a - semi-major axis, average distance from Sun in AU (1 AU = 93 million miles) e - eccentricity i - inclination H - absolute magnitude Mag - magnitude at discovery Discoverer - survey or person who discovered the object MPEC - Minor Planet Electronic Circular, the discovery announcement
The Transient Sky - Comets, Asteroids, Meteors 