List of Mercury-crossing minor planets

A Mercury crosser is an asteroid whose orbit crosses that of Mercury. The Mercury crossers proper have aphelia outside Mercury's (0.4667 AU) and perihelia inside Mercury's (0.3075 AU), whereas those listed here as outer grazers have perihelia within Mercury's aphelion but not within its perihelion. All have semi-major axes larger than Mercury's, and hence there are no known inner grazers.

List

Mercury crossers proper have aphelia outside Mercury's (0.4667 AU) and perihelia inside Mercury's (0.3075 AU). As of 26 January 2018, exactly 300 Mercury crossers were known.[1] (Most values have been rounded to three decimals.)

Designation p
(AU)
a
(AU)
Q
(AU)
i
(°)
e H Orbit
class
Notes
2005 HC4 0.071 1.823 3.575 8.404 0.9613 20.7 Apollo Has the smallest perihelion of any known asteroid.[1]
2017 TC1 0.076 2.490 4.904 9.288 0.9695 20.8 Apollo Has the second-smallest perihelion of any known asteroid, and the highest eccentricity of any known asteroid in the inner solar system.[1]
394130 2006 HY51 0.079 2.595 5.111 33.195 0.9695 17.2 Apollo Has the smallest perihelion of any numbered asteroid.[1]
2008 FF5 0.079 2.278 4.476 2.622 0.9651 23.1 Apollo
2017 MM5 0.080 2.063 4.046 23.469 0.9614 21.1 Apollo
2015 EV 0.081 2.032 3.983 11.356 0.9603 22.5 Apollo
2016 GU2 0.087 2.054 4.021 10.277 0.9575 24.0 Apollo
137924 2000 BD19 0.092 0.876 1.661 25.716 0.8949 17.2 Aten Has the second-smallest perihelion of any numbered asteroid.[1]
374158 2004 UL 0.093 1.266 2.440 23.785 0.9267 18.8 Apollo Has the third-smallest perihelion of any numbered asteroid.[1]
394932 2007 EP88 0.096 0.837 1.579 20.758 0.8859 18.5 Apollo Has the fourth-smallest perihelion of any numbered asteroid.[1]
2011 KE 0.100 2.214 4.327 5.879 0.9546 19.8 Apollo
465402 2008 HW1 0.102 2.585 5.068 10.547 0.9606 17.4 Apollo
2015 HG 0.105 2.100 4.095 17.734 0.9501 21.0 Apollo
2012 US68 0.105 2.504 4.902 25.844 0.9579 18.2 Apollo
2011 XA3 0.108 1.467 2.825 28.010 0.9260 20.4 Apollo
399457 2002 PD43 0.110 2.509 4.908 26.048 0.9560 19.1 Apollo Has the fifth-smallest perihelion of any numbered asteroid.[1]
386454 2008 XM 0.111 1.222 2.333 5.448 0.9091 20.0 Apollo
431760 2008 HE 0.112 2.262 4.413 9.844 0.9506 18.1 Apollo
276033 2002 AJ129 0.117 1.371 2.625 15.449 0.9149 18.7 Apollo
2000 LK 0.118 2.182 4.247 17.020 0.9460 18.4 Apollo
425755 2011 CP4 0.118 0.911 1.705 9.442 0.8703 21.2 Aten
1995 CR 0.119 0.907 1.694 4.035 0.8684 21.7 Aten
2007 GT3 0.121 1.993 3.866 25.425 0.9393 19.7 Apollo
2017 AF5 0.125 2.480 4.835 20.869 0.9496 17.8 Apollo
2004 QX2 0.125 1.285 2.445 19.055 0.9025 21.7 Apollo
2011 BT59 0.129 2.497 4.866 3.580 0.9485 21.0 Apollo
289277 2004 XY60 0.130 0.640 1.150 23.766 0.7967 18.9 Aten
2015 KO120 0.130 1.781 3.433 2.096 0.9269 22.0 Apollo
2007 PR10 0.132 1.233 2.334 21.003 0.8927 20.7 Apollo
504181 2006 TC 0.135 1.538 2.941 19.619 0.9120 18.8 Apollo
2013 JA36 0.138 2.667 5.196 42.506 0.9485 21.0 Apollo
2008 MG1 0.139 0.783 1.428 5.716 0.8227 19.9 Aten
2013 HK11 0.139 2.199 4.258 17.710 0.9368 20.7 Apollo
2017 SK10 0.140 2.056 3.971 24.516 0.9319 21.6 Apollo
3200 Phaethon 0.140 1.271 2.403 22.210 0.8901 14.6 Apollo Largest Mercury crosser. Has the smallest perihelion of any named asteroid. 5.1 ± 0.2 kilometers
2013 YC 0.141 2.495 4.848 2.837 0.9435 21.3 Apollo
2010 JG87 0.144 2.761 5.378 16.912 0.9477 19.1 Apollo
2015 DU180 0.152 1.928 3.705 4.812 0.9214 20.8 Apollo
2016 XK24 0.154 0.580 1.006 8.415 0.7352 20.4 Aten orbit very poorly known
482533 2012 UA34 0.156 0.786 1.416 19.815 0.8016 19.4 Aten
2016 NT22 0.162 1.246 2.329 17.753 0.8703 19.5 Apollo
2005 EL70 0.159 2.659 5.158 17.214 0.9402 24.0 Apollo
2017 HE4 0.165 2.893 5.620 41.070 0.9428 21.2 Apollo
155140 2005 UD 0.163 1.275 2.387 28.678 0.8722 17.3 Apollo
364136 2006 CJ 0.166 0.677 1.187 10.243 0.7549 20.2 Aten
104150 2000 NL10 0.167 0.914 1.661 32.525 0.8170 15.8 Aten
2011 WN15 0.173 1.217 2.260 33.474 0.8579 19.6 Apollo
2013 WM 0.175 2.079 3.983 4.153 0.9160 23.8 Apollo
302169 2001 TD45 0.177 0.798 1.416 25.398 0.7774 19.9 Aten
2005 RV24 0.178 1.506 2.834 36.286 0.8818 20.6 Apollo
527977 2008 EY68 0.179 0.745 1.311 19.794 0.7599 22.0 Apollo
141851 2002 PM6 0.180 1.198 2.216 19.185 0.8501 17.7 Apollo
267223 2001 DQ8 0.181 1.841 3.501 12.880 0.9015 18.0 Apollo
2015 VQ64 0.181 1.193 2.205 8.526 0.8481 21.5 Apollo
2013 AJ91 0.182 2.532 4.882 33.266 0.9282 19.3 Apollo
2017 EP22 0.183 1.972 3.760 14.747 0.9070 22.5 Apollo
259221 2003 BA21 0.184 1.100 2.017 23.730 0.8332 19.1 Apollo
2011 YX62 0.184 2.565 4.946 8.678 0.9282 23.0 Apollo
1566 Icarus 0.187 1.078 1.969 22.828 0.8268 16.9 Apollo First Mercury crosser discovered.
89958 2002 LY45 0.187 1.642 3.097 9.968 0.8864 17.0 Apollo
2009 HU58 0.187 2.066 3.945 35.768 0.9096 19.1 Apollo
5786 Talos 0.187 1.081 1.976 23.235 0.8268 17.1 Apollo
506491 2003 UW29 0.189 1.170 2.150 3.760 0.8384 20.7 Apollo
2015 RD36 0.190 2.543 4.896 0.448 0.9252 22.5 Apollo
387505 1998 KN3 0.195 1.542 2.888 2.301 0.8733 18.4 Apollo
2007 MK6 0.196 1.081 1.966 25.130 0.8188 19.9 Apollo
2015 KJ122 0.196 0.785 1.375 5.069 0.7502 22.0 Aten
2015 DZ53 0.196 1.511 2.825 8.332 0.8700 20.8 Apollo
2010 VA12 0.199 1.269 2.339 37.364 0.8434 19.5 Apollo
1996 BT 0.200 1.121 2.222 12.127 0.8350 23.0 Apollo
153201 2000 WO17 0.200 0.911 1.623 7.771 0.7806 19.3 Aten
139289 2001 KR1 0.200 1.260 2.319 23.229 0.8412 17.6 Apollo
66391 Moshup 0.200 0.642 1.084 38.888 0.6884 16.5 Aten Has a moon. ~1.5 kilometers
141079 2001 XS30 0.200 1.165 2.129 28.527 0.8281 17.7 Apollo
455426 2003 MT9 0.200 2.538 4.876 6.821 0.9211 18.6 Apollo
2014 UV116 0.201 0.918 1.635 42.402 0.9181 23.6 Aten
143637 2003 LP6 0.203 1.746 3.289 43.593 0.8836 16.3 Apollo
2016 TE56 0.203 2.030 3.857 24.470 0.8999 20.1 Apollo
2016 PO66 0.205 49.662 99.118 53.112 0.9959 21.7 Apollo Highly uncertain orbit, semimajor axis could be as low as 1.4 AU.
184990 2006 KE89 0.2114 1.053 1.895 45.093 0.7993 16.4 Apollo 2.039 ± 0.148 kilometers
467372 2004 LG 0.213 2.066 3.919 70.964 0.8971 18.0 Apollo Highly inclined orbit
66253 1999 GT3 0.216 1.334 2.452 19.514 0.8378 18.2 Apollo
471926 Jormungandr 0.219 1.466 2.713 23.596 0.8505 18.6 Apollo
85953 1999 FK21 0.219 0.739 1.258 12.602 0.703 18.1 Aten
494706 2005 GL9 0.221 2.140 4.059 20.054 0.897 17.1 Apollo
495829 1995 LG 0.223 1.065 1.906 43.561 0.7908 18.7 Apollo
489900 2008 KP 0.231 1.101 1.970 59.852 0.7898 18.9 Apollo
2017 WP28 0.235 1.169 2.104 10.002 0.799 20.9 Apollo
137052 Tjelvar 0.238 1.248 2.258 14.917 0.8095 16.9 Apollo
136874 1998 FH74 0.253 2.200 4.147 21.255 0.8850 15.7 Apollo 3.398 ± 0.129 kilometers
1I ʻOumuamua 0.255 N/A N/A 122.687 1.1995 22.1 Interstellar object Perihelion of 2018 Solar System approach.
40267 1999 GJ4 0.257 1.339 2.421 34.533 0.8082 15.4 Apollo Second largest Mercury crosser. 1.641 ± 0.053 kilometers
2017 JJ2 0.258 0.6915 1.125 12.154 0.6264 25.1 Aten
2011 GS60 0.259 3.363 6.466 18.774 0.9228 19.0 Apollo Largest confirmed orbit of any mercury-crosser
2017 SR17 0.260 2.495 4.730 28.437 0.8957 19.0 Apollo
2013 JX28 0.262 0.6008 0.94 10.76 0.5641 20.1 Atira Has the second-smallest semi-major axis of any known object in the Solar System, after Mercury.
331471 1984 QY1 0.263 2.497 4.731 14.255 0.8944 15.6 Apollo Third largest Mercury crosser
2017 UO 0.269 2.553 4.837 8.583 0.846 20.3 Apollo
482798 2013 QK48 0.270 1.586 2.901 19.021 0.8295 18.4 Apollo
2017 FU90 0.270 0.7731 1.275 2.344 0.7731 25.3 Aten
66063 1998 RO1 0.277 0.991 1.704 22.675 0.7200 18.1 Aten Has a moon.
164201 2004 EC 0.279 1.996 3.714 34.662 0.8604 15.7 Apollo
2013 ND15 0.281 0.7235 1.166 4.794 0.6115 24.1 Aten First Venus trojan discovered.
253106 2002 UR3 0.2854 1.379 2.472 48.612 0.7930 16.6 Apollo
397237 2006 KZ112 0.2857 2.525 4.764 37.784 0.8869 16.7 Apollo 1.180 ± 0.028 kilometers
2017 XR 0.287 0.9493 1.612 1.402 0.6976 23.8 Aten
2018 AW 0.289 2.557 4.824 11.890 0.8869 19.5 Apollo
2017 MM8 0.296 0.887 1.478 23.279 0.6667 22.7 Aten
277142 2005 LG8 0.3024 1.755 3.207 26.647 0.8277 16.8 Apollo
2014 LJ21 0.3029 2.890 5.478 24.215 0.8952 16.0 Apollo Largest unnumbered Mercury crosser
163423 2002 FB3 0.3033 0.7616 1.220 20.278 0.6017 16.5 Aten 1.682 ± 0.013 kilometers
137925 2000 BJ19 0.3053 1.292 2.278 31.104 0.7637 16.0 Apollo
87684 2000 SY2 0.307 0.859 1.411 19.232 0.6428 16.0 Aten

Mercury grazers

All Mercury grazers have semi-major axes larger than Mercury's (0.3871 AU), and hence are outer grazers, i.e. have perihelia within Mercury's aphelion (0.4667 AU) but not within its perihelion (0.3075 AU). As of February 2016, there are 561 Mercury grazers known.[2] (Values have been rounded to three decimals.)

Designation
number
Name Perihelion
(AU)
Semi-major axis
(AU)
Aphelion
(AU)
Inclination
(°)
Eccentricity Absolute magnitude (H) Orbit
class
Notes
16960 1998 QS52 0.313 2.203 4.093 17.560 0.8577 14.3 Apollo
85989 1999 JD6 0.324 0.883 1.441 17.054 0.6328 17.1 Aten
68348 2001 LO7 0.339 2.152 3.964 25.478 0.8426 14.2 Apollo
86667 2000 FO10 0.348 0.859 1.370 14.286 0.5948 17.4 Aten
2212 Hephaistos 0.358 2.167 3.975 11.741 0.8348 13.87 Apollo
66400 1999 LT7 0.366 0.855 1.345 9.065 0.5725 19.3 Aten
37655 Illapa 0.366 1.478 2.590 17.994 0.7524 17.9 Apollo
88213 2001 AF2 0.386 0.954 1.522 17.812 0.5952 19.7 Aten
2008 UU1 0.401 1.608 2.814 12.057 0.7506 17.6 Apollo
66146 1998 TU3 0.406 0.787 1.168 5.413 0.4839 14.5 Aten
24443 2000 OG 0.411 2.310 4.210 25.822 0.8223 16.3 Apollo
5143 Heracles 0.418 1.834 3.250 9.033 0.7721 13.8 Apollo
33342 1998 WT24 0.418 0.718 1.019 7.343 0.4180 17.9 Aten
5660 1974 MA 0.424 1.786 3.147 38.052 0.7623 15.4 Apollo
322756 2001 CK32 0.448 0.725 1.0003 8.132 0.382 19.2 Aten Temporary horseshoe librator of Venus
524522 2002 VE68 0.427 0.724 1.021 9.006 0.4104 20.5 Aten Temporary quasi-satellite of Venus
2012 XE133 0.410 0.723 1.036 6.711 0.433 23.4 Aten Temporary horseshoe librator of Venus
88254 2001 FM129 0.438 1.182 1.926 1.524 0.6296 17.6 Apollo
2101 Adonis 0.442 1.875 3.307 1.333 0.7641 18.8 Apollo
3838 Epona 0.448 1.505 2.561 29.239 0.7020 15.5 Apollo
87309 2000 QP 0.455 0.847 1.240 34.743 0.4631 17.6 Aten
2340 Hathor 0.464 0.844 1.224 5.856 0.4498 20.1 Aten

See also

References

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