Very Small Radar-Detected Near-Earth Asteroids: D < 200 m
Last modified: 2018 September 14
http://echo.jpl.nasa.gov/~lance/small.neas.html
Objects with H > 21 (diameters less than about 200 meters):
Absolute 2x vis rng Diameter (m) Rotation
Asteroid magnitude extent (m) pv=0.05 pv=0.2 Period (h) SC/OC Reference
-------- -------- ---------- ------- ------ ---------- ----- ---------
306383 1993 VD 21.5
1994 CJ1 21.3
1998 BY7 21.5 NA 300 150 <1.3 0.4 +/-0.04 9 PHA
326290 1998 HE3 21.7 0.07 8 PHA
1998 KY26 25.5 30* 48 24 0.178 0.5 +/-0.1 3
1998 SD9 24.2
1999 FN19 22.4 110 190 95 <11 0.22+/-0.01 5
1999 MN 21.6 7 PHA
1999 NW2 23.1 NA 150 72 <4.2 0.35+/-0.02 5
1999 TN13 23.6 NA 120 57 <1.3 5
1999 TY2 23.3 NA 130 66 0.121 4, 8
2000 EH26 21.2 120 260 130 <33 1 PHA
2000 EW70 21.1 360 360 180 <33 7 PHA
2000 LF3 21.6 NA 300 150 <1.0 <0.2 8 PHA
54509 YORP 22.3 120 170 90 0.288 0.29+/-0.02 7, 10 2000 PH5
2000 UK11 25.0 <60 52 26 ~0.05 2
2000 YA 23.7 120 110 52 <1.3 1
2001 AV43 24.3 NA 72 36 8
2001 BB16 23.1
2001 BF10 22.3 NA 170 83 <0.4 6
2001 CP36 23.7 90 110 55 slow? ~1.0 8
2001 EC16 22.2 150 200 100 slow ~0.2 7
2001 FR85 24.5 ? 79 40 8
2001 JV1 21.3 ? 320 160 <29 9 PHA
2001 CQ36 22.7 15
2001 SP263 25.6 42 21 8
2001 TA2 21.7 17
2001 UP 25.7 44 22 8
2001 WM15 25.0 60 30 8
2001 XX4 21.9 250 130 8
2001 YP3 21.9 250 130 8 PHA
2002 AA29 24.1 0.25+/-0.08 12
2002 AV 20.7 380 190 9 PHA
2002 BF25 22.6 16
2002 FD6 22.3 110 210 110 ~1 h 5
2002 LY1 22.1
363305 2002 NV16 21.4 8 PHA
2002 TS69 24.4 80 40 8
2002 TZ66 25.9 40 20 <1.1 0.0+/-0.16 5
2003 DZ15 22.3 8
2003 EP4 23.7 8
2003 HM 21.7 8
2003 HN16 22.0 8
2003 MS2 21.3 380 330 170 ~6? ~0.5 5 PHA
2003 QB30 26.3 33 17 11
2003 RU11 25.6 46 23 fast 8
2003 SR84 25.2 5
2003 SS84 21.7 275 138 8, 13 PHA BINARY
2003 TH2 22.8 6
2003 WH166 21.9 15 PHA
2004 AD 24.3 6
2004 FY31 21.9 251 126 very fast 5 PHA
2004 HX53 23.0 8
2004 KH17 21.9 8 PHA
2004 XL14 21.4 14 PHA
348306 2005 AY28 21.5
265482 2005 EE 21.3
2005 ES70 23.8
2005 EU2 22.8 ~300 6,5
2005 FA 25.2 8
2005 HB4 24.4 8
2005 TD49 26.4 8
2005 TU50 21.5 8 PHA
2005 WA1 21.6 8 PHA
2005 WK56 22.6 8
2005 XA 26.1 8
2005 YU55 21.9 ~400 6 PHA
2006 AM4 21.8 8, 13 PHA
2006 CT 22.3 18
2006 QV89 25.2 8
2006 RH120 29.6 5 (6R10DB9)
2006 UQ17 21.9 8 PHA
2006 WB 22.8 150 14
2007 CN26 21.0 15 PHA
2007 EC 22.2
2007 EH 27.6 8
2007 FY20 24.8 6
2007 TV18 23.4
2009 DL46 21.5
2009 DO111 22.8 15
2009 DR3 21.5 15 PHA
410777 2009 FD 22.1
2009 SC15 21.5 15
2009 WV25 24.0 15
2010 AL30 27.0 15
2010 AF40 25.0 15
2010 DJ1 26.8 15
2010 GU21 21.1 5 PHA
2010 JK1 24.4 15
2010 JN71 21.4 8 PHA
2010 KX7 21.9 8 PHA
438955 2010 LN14 21.1
2010 NY65 21.5
2010 UP 24.5 8
2010 UM7 27.6 8
2010 VB1 23.2
2011 AK5 21.4
2011 BT15 21.7
462959 2011 DU 21.0
2011 JY1 24.5 8
2011 SE97 24.7 8
2011 TB4 25.5
2011 UB 27.5 15
2011 WN2 25.2 5
2011 WS74 23.9 8
2011 WS95 24.9 8
2011 XD1 23.9 17
2011 YC29 22.2
2011 YH40 23.0 15
2012 BD14 26.7 17
2012 BX34 27.6 15
2012 DA14 24.1 5
2012 DH54 27.6 5
2012 DR32 24.6
2012 DW60 26.5 5
2012 DX 27.6 17
2012 DX13 23.9 8
2012 EO8 24.4 8
2012 HL 22.6 8
2012 HM 24.0 5
2012 HM8 23.9 8
2012 MY2 26.3
2012 OQ 21.8 15 PHA
2012 PX 23.2 8
2012 TC4 26.7
2012 WH1 23.9 6
2012 XB112 29.7 15
2013 BS45 25.7 15
2013 BV15 24.3 15
2013 BZ45 21.9
2013 CZ87 25.9 17
2013 EA 22.1 15
2013 EC20 29.0 15
2013 ET 23.1 15
2013 FB8 24.9 15
2013 FK 23.2
2013 GJ69 26.5 8
2013 GR38 21.8 8
2013 HT15 21.8 15
2013 JR28 21.6 6 PHA
2013 LB2 22.6 6
2013 LL25 22.7 8
2013 NJ 21.8 15 PHA
2013 QN11 21.5 8
2013 QR1 21.5 8
2013 RH74 21.0 8 PHA
2013 SU24 24.6 15
2013 UB 26.7 15
2013 UF3 22.1 17
2013 VJ11 27.8 6
2013 VO5 21.2 6 PHA
2013 XA4 21.4 6
2013 XG10 25.5 6
2013 XH22 26.1 15
2013 XX8 24.4
2013 XY8 24.7 15
2013 XZ9 22.5 17
2014 AD16 27.4
2014 AY28 21.8
2014 BR57 23.9
2014 CU13 21.6
2014 DJ23 22.0
2014 EP12 25.6
2014 EQ12 21.0
2014 EY24 24.0
2014 FO38 26.1
2014 FS52 24.4
2014 GO17 23.0
2014 GP17 25.2
2014 HM4 26.9
2014 HO132 25.4
2014 HT46 26.6
2014 KF22 26.5
2014 JL25 22.6
2014 KH39 26.2
2014 LK21 26.0
2014 QY33 26.2
2014 RC 26.8
2014 RQ17 22.3
2014 SC324 24.1
2014 TJ17 24.9
2014 TV 24.3
2014 TX57 21.3
2014 TW 26.2
2014 UR 26.6
2014 UV210 26.5
2014 VP35 22.7
2014 WU200 29.0
2014 WW201 25.0
2014 WX202 29.4
2014 YE15 28.3
2014 YQ8 23.7
2014 YR14 26.1
2014 YS 24.6
2015 AK45 26.4
2015 BE92 28.1
2015 BG92 25.1
2015 CW13 23.0
2015 DP155 21.6
2015 EL7 22.5
2015 FQ 22.3
2015 FW117 22.8
2015 GA1 26.6
2015 HD10 26.7
2015 HM10 23.6
2015 HS11 27.4
2015 JH2 22.4
2015 KA122 23.2
2015 KW120 26.0
2015 LJ 24.6
2015 LK24 21.5
2015 LQ21 24.1
2015 LR21 26.4
2015 MA54 25.3
2015 MO116 24.0
2015 MW53 21.4
2015 NA14 22.2
2015 OQ21 27.8
2015 PK9 23.6
2015 QT3 23.9
2015 RF36 23.2
2015 RH2 22.0
2015 SZ 23.6
2015 SZ2 25.4
2015 TC25 29.5
2015 TD144 22.6
2015 VZ145 23.6
2015 WA13 26.2
2015 WE2 22.4
2015 WF13 26.2
2015 WZ12 26.5
2015 XA378 25.7
2015 XA379 25.3
2015 XC 25.2
2015 XC352 25.8
2015 XE 24.7
2015 XL1 22.4
2015 XN55 27.4
2015 XU378 21.4
2016 CF194 24.0
2016 CL264 19.1
2016 DV1 24.9
2016 GS2 23.0
2016 HD3 28.0
2016 HK 24.8
2016 JC6 21.3
2016 JD18 24.7
2016 LG 25.4
2016 LO48 25.4
2016 LY8 23.1
2016 ND39 25.2
2016 NJ33 25.2
2016 NN15 26.7
2016 PQ 25.9
2016 RB1 27.8
2016 RD34 27.1
2016 RE34 28.3
2016 TB57 26.1
2016 TG55 25.9
2016 TY55 26.9
2016 UB107 25.1
2016 UY56 23.8
2016 VC1 21.7
2016 VR 26.2
2016 VX1 25.2
2016 VY1 24.7
2016 XE 28.2
2016 WB8 25.9
2016 WG7 26.1
2016 WQ3 28.8
2016 XK18 24.3
2016 YB8 24.5
2016 YC8 24.6
2017 BM123 23.7
2017 BQ6 21.4
2017 BW 23.4
2017 BY93 23.1
2017 CP1 24.6
2017 CF32 26.0
2017 DA38 24.6
2017 DV15 25.2
2017 ED 26.4
2017 EF 27.1
2017 EK 24.1
2017 FF128 25.9
2017 FQ127 26.0
2017 FR63 26.1
2017 FR91 26.9
2017 FU64 23.8
2017 FU102 28.7
2017 FV 24.3
2017 FX90 26.3
2017 FZ2 26.7
2017 HB1 26.2
2017 HK1 25.0
2017 KJ27 25.5
2017 KR27 23.5
2017 LE 26.2
2017 MB3 25.3
2017 MC3 24.1
2017 ME4 26.2
2017 MQ7 23.1
2017 NH 21.7
2017 QL33 21.4
2017 VT14 23.0
2017 WC 25.9
2017 WX12 22.1
2017 XT61 23.1
2017 AJ 24.7
2017 AV2 28.8
2018 BM5 27.4
2018 BT1 23.0
2018 CB 26.0
2018 DT 27.1
2018 EB 21.7
2018 EJ4 21.3
2018 FB 24.0
2018 FH1 26.6
2018 LK 21.7
2018 LQ2 24.8
2018 MB7 23.8
2018 MD7 22.5
2018 NE1 23.4
2018 NM 26.4
2018 NV 22.9
2018 PL10 22.1
2018 QU1 22.7
2018 RB6 25.9
2018 RC 24.6
N = 327 (327/782 = 41.8% of all radar-detected NEAs)
NEAs with H >= 22.0: 265/782 = 0.339
Percentage of small radar-detected NEAs that are binaries: 3/327 = 1.0%
Note: NEA satellites < 200 m in diameter are not included.
NA = visible range extent is not available (was not measured).
* = 3-D shape model diameter was used (1998 KY26 only).
Diameters are listed assuming C-type (0.05) and S-type (0.20) optical geometric albedos,
except for 1998 K26, for which a 3-D shape model is available.
In the rotation period estimates, if rotation periods have not been reported in
the peer-reviewed literature or in personal communications, in most cases
an optical albedo of 0.05 was assumed and was used to estimate an upper bound
on the diameter. That upper bound and the bandwidth were used to estimate
upper bounds on the rotation periods. With 1999 NW2, M. Hicks (pers. comm.)
obtained photometric colors indicating an SQ-type composition, so an optical
albedo of 0.2 was assumed to estimate the diameter and to constrain the
rotation period.
The upper bound on the rotation period of 2000 YA from radar observations is
consistent with the periods estimated from photometry by P. Pravec. Pravec's
period is ambiguous by a factor of two (1.3 h or 0.65 h).
2000 EW70 is included because it has H > 21.0 even though it has a visible range
extent of about 180 meters.
REFERENCES
----------
1. Benner, L. A. M., M. C. Nolan, J.-L. Margot, J. D. Giorgini, R. S. Hudson, R. F. Jurgens,
and S. J. Ostro 2001. Recent radar observations of four near-Earth asteroids.
Bull. Am. Astron. Soc. 33, 918. [Abstract]
2. Nolan, M. C., J.-L. Margot, E. S. Howell, L. A. M. Benner, S. J. Ostro, R. F. Jurgens,
J. D. Giorgini, and D. B. Campbell 2001. Radar observations of near-Earth asteroids
2000 UG11 and 2000 UK11. Lunar Planet Sci. XXXII, #2055. [Abstract]
3. Ostro, S. J., P. Pravec, L. A. M. Benner, R. S. Hudson, L. Sarounova, M. D. Hicks, D. L. Rabinowitz,
J. V. Scotti, D. J. Tholen, M. Wolf, R. F. Jurgens, M. L. Thomas, J. D. Giorgini, P. W. Chodas,
D. K. Yeomans, R. Rose, R. Frye, K. D. Rosema, R. Winkler, and M. A. Slade 1999. Radar and
optical observations of asteroid 1998 KY26. Science 285, 557-559.
4. Pravec, P., C. Hergenrother, R. Whiteley, L. Sarounova, P. Kusnirak, and M. Wolf 2000.
Fast rotating asteroids 1999 TY2, 1999 SF10, and 1998 WB2. Icarus 147, 477-486.
5. Benner, L. A. M, et al., unpublished.
6. Howell, E. S., et al., unpublished.
7. Margot, J.-L., et al., unpublished.
8. Nolan, M. C., et al., unpublished.
9. Ostro, S. J., et al., unpublished.
10.Sarounova, L., et al., unpublished.
11.Shepard, M. K., et al., unpublished.
12.Ostro, S. J., J. D. Giorgini, L. A. M. Benner, A. A. Hine, M. C. Nolan, J. L. Margot, P. W.
Chodas, and C. Veillet 2003. Radar detection of asteroid 2002 AA29. Icarus, in press.
13.Nolan, M. C., A. A. Hine, E. S. Howell, L. A. M. Benner 2003 2003 SS84. IAU Circ. No. 8220.
14. Busch, M. W., et al., unpublished.
15. Brozovic, M., et al. , unpublished.
16. Nugent, C., et al. unpublished.
17. Taylor, P., et al. unpublished.
18. Springmann, A., et al., unpublished
Lance Benner
Last modified: Thu Dec 14 13:24:39 PST 2006