Rotation periods and upcoming apparitions for future near-Earth asteroid
radar targets
http://echo.jpl.nasa.gov/~lance/future.radar.nea.periods.html
Last update: 2012 Jun 21
Lance A. M. Benner
Includes all apparitions through December, 2015 and some through the end of 2025.
Criteria:
Solar elongations >= 90 deg
Visual magnitudes < 22
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Click here for a list of PREVIOUS near-Earth asteroid radar targets,
rotation periods, and upcoming optical apparitions
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UPCOMING NEAR-EARTH OBJECT RADAR TARGETS
Radar Brightest
Observations H visual
Date Asteroid (mag) P (h) Date magnitude
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2012 Jun 308242 2005 GO21 16.5 ? After 2021 PHA
Reaches elongations of 80 degrees multiple times
2012 Jun 2012 LZ1 19.8 Jun 2012 16.6 PHA
2012 Jul 2003 KU2 17.7 ? Jul 2012 15.0 PHA
Jan 2013 19.0
Apr 2016 21.8
Jan 2022 21.0
May 2025 20.6
2012 Jul 153958 2002 AM31 18.1 ? Jan 2011 20.3 PHA
Jul 2012 13.6
Dec 2012 18.1
Apr 2014 20.2
2012 Jul 2062 Aten 16.8 40.77 Nov 2011 17.5
Dec 2012 16.7
Jan 2014 13.9
Jan 2015 15.5
2012 Jul 144411 2004 EW9 16.6 49.94 May 2012 16.4
Sep 2012 16.6
Jul 2014 20.5
Dec 2015 19.8
Feb 2017 19.8
Jan 2019 20.3
May 2020 14.7
Oct 2020 17.4
Jan 2022 20.4
Dec 2023 19.9
Feb 2025 19.6
2012 Jul 1685 Toro 14.2 10.20 Jul 2012 14.3
Mar 2013 15.8
Jun 2015 15.3
2012 Aug 4581 Asclepius 20.4
2012 Aug 162421 2000 ET70 18.1
2012 Sep 4769 Castalia 16.9 4.095
2012 Sep 2063 Bacchus 17.1 14.9
2012 Oct 136993 1998 ST49 17.6 ? Oct 2012 13.6
Feb 2013 18.6
2012 Oct-Nov 2007 PA8 16.2 ? Jun 2011 21.8 PHA
Nov 2012 11.4
Jan 2013 16.1
May 2014 21.9
2012 Nov 1999 SF10 24.0 0.0411
2012 Nov 2010 JK1 24.4
2012 Nov 1994 XD 19.1 ? Dec 2012 15.1 PHA BINARY
2012 Dec 163899 2003 SD220 16.9
2012 Dec 4179 Toutatis 15.3 130 May 2011 20.7 PHA NPA rotator
Aug 2012 15.8
Dec 2012 10.5
Apr 2014 20.6
May 2015 20.7
2012 Dec 2006 VB14 18.6
2012 Dec 33342 1998 WT24 17.9 3.697
2012 Dec 2010 BB 20.0
2012 Dec 203471 2002 AU4 18.7
2013 Jan 2002 AY1 20.9 ? Jan 2013 16.1 PHA
Dec 2014 20.6
2013 Jan 52762 1998 MT24 14.6 12.066
2013 Jan 137199 1999 KX4 16.8
2013 Jan-Mar 99942 Apophis 19.3 30.6 Jan 2013 16.1 PHA
Feb 2014 20.3 elongation = 86 deg
Mar 2020 20.8 elongation = 82 deg
Feb 2021 16.1
2013 Feb 2012 DA14 24.4
2013 Feb 3752 Camillo 15.5 37.85
2013 Feb 2008 DG17 19.7
2013 Mar 2007 EO88 26.4
2013 Apr 2002 TR190 19.0
2013 Apr 4034 Vishnu 18.1
2013 Apr 7888 1993 UC 15.3 2.34
2013 Apr 2005 NZ6 17.6 PHA
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Objects listed after April, 2013 have been requested at Goldstone but not yet at Arecibo
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2013 May 163364 2002 OD20 18.8 ? Nov 2012 18.8 PHA
May 2013 13.9
Oct 2015 20.2
2013 May-Jun 1998 QE2 16.4 ? Dec 2011 21.5 PHA
Jun 2013 10.5
Nov 2014 21.6
Dec 2015 21.2
2013 Jul 153349 2001 PJ9 18.0
2013 Aug 2005 WK4 20.2 ? Sep 2011 18.8 PHA
Aug 2012 17.9
Aug 2013 14.1
Aug 2014 17.4
Sep 2015 19.3
2013 Aug 137126 1999 CF9 17.9 ? Nov 2011 21.0 PHA
Jan 2013 19.9
Aug 2013 14.3
Dec 2014 21.5
2013 Aug 52760 1998 ML14 17.6 14.98 Aug 2013 15.2 PHA
Nov 2013 17.9
2013 Aug 2007 CN26 21.0 PHA
2013 Sep 2002 NV16 21.4 PHA
2013 Sep 152664 1998 FW4 19.5 ? Sep 2013 15.1 PHA
Apr 2014 21.9
2013 Sep 2002 OA22 19.3 ? Jun 2012 17.5 PHA
Sep 2013 14.1
2013 Nov 2001 AV43 24.6 0.17 Nov 2013 18.4
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2014 Jan 252346 2007 SJ 16.5 ? Jul 2012 20.7 PHA
Jan 2014 15.1
Feb 2014 15.1
Jul 2015 20.7
2014 Feb 2006 DP14 18.8 PHA
2014 Apr 2006 SX217 18.9 ? Oct 2011 20.0 PHA
Mar 2014 18.8
May 2014 18.7
2014 May 2000 RS11 18.8 ? Sep 2013 18.0 PHA
Mar 2014 14.8
2014 May P/2004 CB LINEAR 17.4? ? After 2015? COMET
2014 Jun 152770 2002 SR41 20.1 ? Oct 2011 19.2 PHA
Aug 2012 21.2
Jul 2013 20.9
Jun 2014 16.5
2014 Aug 2010 LE15 19.5 PHA
2014 Aug 2001 RZ11 16.4
2014 Aug 163132 2002 CU11 18.4 ? After 2015 PHA
2014 Sep 276049 2002 CE26 16.8 3.293 Feb 2012 20.2 BINARY
Sep 2014 13.7
Feb 2015 18.8
Mar 2019 21.9
Mar 2022 20.3
Sep 2024 16.4
Feb 2025 19.9
2014 Oct 2340 Hathor 19.2 ? Dec 2011 17.4 PHA Sq-class
Oct 2014 14.2
Jan 2019 16.9
Nov 2021 16.5
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2015 Jan 2004 BL86 18.8 ? Jul 2012 20.5 PHA
Aug 2014 19.0
Jan 2015 11.1
2015 Jun 1566 Icarus 16.9 2.273 Aug 2011 18.9 PHA
Jul 2012 19.1
Jul 2013 18.7
Jun 2014 17.5
Jun 2015 13.5
2015 Jul 1994 AW1 17.0 PHA BINARY S-class
2.519 primary, 22.40 secondary
Feb 2015 18.3
Jul 2015 14.0
2015 Jul 85898 1999 JD6 16.9 7.68 After 2015 PHA
2015 Aug 2003 RB 18.6 ? Feb 2014 21.5 PHA
Aug 2015 13.7
Nov 2015 18.0
2015 Nov 2005 UL5 20.0 ? Sep 2011 21.6 PHA
Aug 2012 19.9
Sep 2013 20.6
Oct 2014 20.0
Nov 2015 14.2
2015 Dec 33342 1998 WT24 18.0 3.697 Dec 2015 11.3 PHA
2021 Dec 163899 2003 SD220 16.8 ? Dec 2015 15.1 PHA
Dec 2018 13.0
Dec 2021 12.7
2015 Dec 2008 CM 17.1 ? Jul 2011 17.9 PHA
Jul 2013 17.9
Jan 2014 16.5
Jul 2015 17.9
Dec 2015 13.9
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2016 Mar-Apr P/2000 G1 LINEAR ? Dec 2015 19.6? COMET
2016 Oct 2003 TL4 19.4 27.2 Oct 2016 15.1 PHA
Sep 2018 18.2
2016 Oct-Nov 164121 2003 YT1 16.2 2.343 May 2011 15.7 PHA Binary
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2017 Apr 143404 2003 BD44 16.6 ? Jan 2011 20.4 PHA
Dec 2012 20.8
Jan 2014 19.3
Dec 2015 20.0
2017 May-Jun 2007 WV4 19.3 ? Dec 2016 19.9 PHA
Jun 2017 15.8
Nov 2018 20.9
2017 Aug-Sep 3122 Florence 14.2 2.358 Dec 2010 15.5 PHA
May 2012 17.3
May 2014 17.7
Dec 2015 18.0
2017 Oct 171576 1999 VP11 18.5 ? Feb 2014 18.7 PHA
Jan 2015 19.8
Dec 2015 20.2
2017 Nov 2006 UK 20.2 ? Sep 2015 21.9 PHA
2017 Dec 3200 Phaethon 14.6 3.604 Nov 2011 17.3 PHA
Nov 2012 17.7
Dec 2014 16.1
Nov 2015 17.9
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2018 Feb 2002 AJ129 18.5 ? Apr 2011 20.9 PHA
Feb 2012 21.8
Mar 2014 21.9
Feb 2015 20.7
2018 May 1999 FN19 22.4 3.5? May 2018 18.3
2018 May 66391 1999 KW4 16.5 2.765 May 2015 16.9 PHA BINARY
2018 May 68347 2001 KB67 19.8 ? Jul 2017 20.3 PHA
May 2018 14.7
Jul 2019 19.4
Jul 2020 20.2
Oct 2021 19.8
2018 Sep 144332 2004 DV24 16.5 ? Mar 2011 18.6 PHA
Feb 2014 18.8
2018 Dec 163899 2003 SD220 16.8 ? Dec 2015 15.1 PHA
Dec 2018 13.0
Dec 2021 12.7
2018 Dec 46P/Wirtanen ? Jan 2014 20.1? COMET
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2019 May 66391 1999 KW4 16.5 2.765 May 2015 16.9 PHA BINARY
2019 Sep 1998 FF14 20.4 ? Mar 2012 20.2 PHA
2019 Nov 2006 SF6 19.9 ? Aug 2017 19.0 PHA
Sep 2018 18.2
Nov 2019 13.8
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2020 Feb 163373 2002 PZ39 18.8 ? Sep 2011 19.4 PHA
Oct 2013 21.1
Nov 2015 21.3
2020 Apr 52768 1998 OR2 15.9 ? Nov 2011 20.4 PHA
Aug 2013 19.4
Oct 2014 21.0
Dec 2015 19.3
2020 Nov-Dec 153201 2000 WO107 19.0 ? Dec 2013 18.7 PHA
Dec 2014 18.8
Dec 2015 19.8
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2021 Jan 2008 AF4 19.7 ? Aug 2012 18.7 PHA
Mar 2013 20.8
May 2015 21.3
Apr 2018 21.5
Jun 2020 20.1
Jan 2021 14.3
2021 Feb-Mar 1999 RM45 19.3 ? Sep 2012 18.8 PHA
Mar 2021 13.4
2021 Mar 2001 FO32 17.7 ? Mar 2012 19.3 PHA
Mar 2014 21.5
Nov 2014 20.2
Mar 2021 13.2
2021 Dec 163899 2003 SD220 16.8 ? Dec 2015 15.1 PHA
Dec 2018 13.0
Dec 2021 12.7
2021 Dec 4660 Nereus 18.2 15.16 Apr 2011 19.1 PHA
Sep 2012 19.7
May 2013 18.6
Jun 2015 18.7
Note: Most of the rotation periods were taken from Horizons. Slightly different
values may be available from Petr Pravec, Michael Hicks, Peter Brown, other
observers, unpublished radar observations, and from more recent references than
those cited on Horizons. In some cases, bounds from unpublished radar
observations were used.