A Scale Model of the Earth if the Earth was the Size of a Basketball - Radius 12.0275 CM(4.73523622 inches)
Top of the Troposphere--0.038cm (0.015inches) 0.001 Ft
Top of the Stratosphere--0.113cm (0.045inches) 0.004 Ft
Top of the mesosphere--0.227cm (0.089inches) 0.007 Ft
STS-1(Perigee)--0.453cm (0.178inches) 0.015 Ft
STS-1(apogee)--0.474cm (0.187inches) 0.016 Ft
ISS(Perigee)--0.757cm (0.298inches) 0.025 Ft
ISS(apogee)--0.770cm (0.303inches) 0.025 Ft
Top of the Thermosphere--1.133cm (0.446inches) 0.037 Ft
The 50 closest observed NEO Earth close approaches as of 2018-05-20
01. The 2011-Feb-04 fly by of 2011 CQ1--10.347cm (4.074inches) 0.339 Ft
02. The 2008-Oct-09 fly by of 2008 TS26--11.816cm (4.652inches) 0.388 Ft
03. The 2004-Mar-31 fly by of 2004 FU162--12.351cm (4.862inches) 0.405 Ft
04. The 2016-Feb-25 fly by of 2016 DY30--14.978cm (5.897inches) 0.491 Ft
05. The 2017-Apr-04 fly by of 2017 GM--18.681cm (7.355inches) 0.613 Ft
06. The 2017-Oct-20 fly by of 2017 UJ2--21.756cm (8.565inches) 0.714 Ft
07. The 2011-Jun-27 fly by of 2011 MD--23.184cm (9.127inches) 0.761 Ft
08. The 2014-Jun-03 fly by of 2014 LY21--25.810cm (10.161inches) 0.847 Ft
09. The 2009-Nov-06 fly by of 2009 VA--26.590cm (10.469inches) 0.872 Ft
10. The 2012-May-29 fly by of 2012 KT42--27.263cm (10.734inches) 0.894 Ft
11. The 2017-Mar-02 fly by of 2017 EA--27.420cm (10.795inches) 0.900 Ft
12. The 2016-Sep-11 fly by of 2016 RN41--32.749cm (12.893inches) 1.074 Ft
13. The 2015-Sep-22 fly by of 2015 SK7--38.208cm (15.043inches) 1.254 Ft
14. The 2016-Jan-12 fly by of 2016 AH164--38.293cm (15.076inches) 1.256 Ft
15. The 2013-Dec-23 fly by of 2013 YB--39.225cm (15.443inches) 1.287 Ft
16. The 2017-Nov-26 fly by of 2017 WE30--44.815cm (17.644inches) 1.470 Ft
17. The 2016-Mar-11 fly by of 2016 EF195--47.677cm (18.771inches) 1.564 Ft
18. The 2008-Oct-20 fly by of 2008 US--50.052cm (19.705inches) 1.642 Ft
19. The 2004-Dec-19 fly by of 2004 YD5--51.949cm (20.452inches) 1.704 Ft
20. The 2013-Feb-15 fly by of 367943 Duende (2012 DA14)--52.259cm (20.574inches) 1.715 Ft
21. The 2015-Nov-15 fly by of 2015 VY105--53.303cm (20.985inches) 1.749 Ft
22. The 2016-Jan-14 fly by of 2016 AN164--57.900cm (22.795inches) 1.900 Ft
23. The 2010-Nov-17 fly by of 2010 WA--61.321cm (24.142inches) 2.012 Ft
24. The 2018-Jan-18 fly by of 2018 BD--61.859cm (24.354inches) 2.030 Ft
25. The 2015-Feb-17 fly by of 2015 DD1--62.075cm (24.439inches) 2.037 Ft
26. The 2014-Sep-07 fly by of 2014 RC--63.313cm (24.927inches) 2.077 Ft
27. The 2011-Feb-06 fly by of 2011 CF22--63.839cm (25.134inches) 2.094 Ft
28. The 2016-Sep-07 fly by of 2016 RB1--64.398cm (25.354inches) 2.113 Ft
Geosynchronous orbit--67.559cm (26.598inches) 2.216 Ft
29. The 2008-Nov-03 fly by of 2008 VM--75.248cm (29.625inches) 2.469 Ft
30. The 2004-Mar-18 fly by of 2004 FH--80.665cm (31.758inches) 2.646 Ft
31. The 2017-Oct-12 fly by of 2012 TC4--82.650cm (32.540inches) 2.712 Ft
32. The 2010-Oct-12 fly by of 2010 TD54--85.742cm (33.757inches) 2.813 Ft
33. The 2017-Jan-30 fly by of 2017 BH30--85.850cm (33.799inches) 2.817 Ft
34. The 2010-Nov-30 fly by of 2010 XB--87.847cm (34.586inches) 2.882 Ft
35. The 2013-Apr-18 fly by of 2013 HT25--89.662cm (35.300inches) 2.942 Ft
36. The 2017-May-04 fly by of 2017 JB2--93.008cm (36.617inches) 3.051 Ft
37. The 2014-Aug-31 fly by of 2014 RA--95.026cm (37.412inches) 3.118 Ft
38. The 2016-Apr-04 fly by of 2016 GN134--95.974cm (37.785inches) 3.149 Ft
39. The 2012-May-28 fly by of 2012 KP24--96.122cm (37.843inches) 3.154 Ft
40. The 2015-Apr-21 fly by of 2015 HD1--99.566cm (39.199inches) 3.267 Ft
41. The 2017-Oct-28 fly by of 2017 UL6--100.460cm (39.551inches) 3.296 Ft
42. The 2014-Mar-06 fly by of 2014 EC--104.224cm (41.033inches) 3.419 Ft
43. The 2009-Feb-27 fly by of 2009 EJ1--104.330cm (41.075inches) 3.423 Ft
44. The 2017-Aug-14 fly by of 2017 QP1--106.229cm (41.823inches) 3.485 Ft
45. The 2017-Mar-20 fly by of 2017 FN1--107.355cm (42.266inches) 3.522 Ft
46. The 2012-Mar-26 fly by of 2012 FS35--109.577cm (43.140inches) 3.595 Ft
47. The 2012-Jan-27 fly by of 2012 BX34--111.432cm (43.871inches) 3.656 Ft
48. The 2008-Mar-10 fly by of 2008 EF32--112.584cm (44.324inches) 3.694 Ft
49. The 2009-Oct-01 fly by of 2009 TB--119.071cm (46.878inches) 3.907 Ft
50. The 2007-Oct-17 fly by of 2007 UN12--119.600cm (47.087inches) 3.924 Ft
Light-second. 566.000cm (222.820inches) 18.568 Ft
Lunar distance (perigee)--673.000cm (265.000inches) 22.095 Ft
Lunar distance--714.000cm (281.000inches) 23.414 Ft
Lunar distance (apogee)--766.000cm (302.000inches) 25.128 Ft
Light-minute--34000.000cm (13400.000inches) 1114.101 Ft
Moon Equatorial radius--3.280cm (1.292inches) 0.108 Ft
Moon Equatorial radius Diameter--6.560cm (2.584inches) 0.215 Ft
Moon Equatorial Circumference--20.600cm (8.117inches) 0.676 Ft
Earth radius--12.000cm (4.735inches) 0.395 Ft
Earth (Equatorial) diameter--24.100cm (9.470inches) 0.789 Ft
Earth (Equatorial) Circumference--75.600cm (29.752inches) 2.479 Ft
See the spreadsheet The 50 closest observed NEO Earth close approaches as of 2018-05-20.xlsx
