List of asteroid close approaches to Earth in 2016

Below is the list of asteroid close approaches to Earth in 2016.

Timeline of close approaches less than one Lunar distance from Earth in 2016

A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2016.[note 1]

For reference, the radius of Earth is approximately 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 Lunar distances.
The orbit of geosynchronous satellites, however, is 0.000282 AU (42,200 km; 26,200 mi) or 0.110 Lunar distances. This year, 6 (possibly 7) asteroids traveled nearer than this, most notably 2016 DY30, which approached a mere 1.25 Earth radii (8000 km) from the surface.

While most asteroids on this list are confirmed, well-observed unconfirmed objects with a 50% or greater chance of passing within 1 LD of the Earth are included as well.

Date of
closest
approach
Object Nominal geocentric
distance (AU)[note 2]
Nominal geocentric
distance (LD)
Size (m)
(approximate)
(H) Closer
approach
to Moon
2016-01-10 2016 AQ164 0.000698 AU (104,400 km; 64,900 mi) 0.27 2–7 29.9[1]
2016-01-12 2016 AH164 0.000178 AU (26,600 km; 16,500 mi) 0.069 3–7 29.6[2]
2016-01-13 2016 AN165 0.00120 AU (180,000 km; 112,000 mi) 0.47 5–18 27.6[3]
2016-01-14 2016 AN164 0.000247 AU (37,000 km; 23,000 mi) 0.096 2–5 30.5[4]
2016-02-06 2016 CG18 0.00101 AU (151,000 km; 94,000 mi) 0.39 3–16 28.5[5]
2016-02-10 2016 CW264 0.00141 AU (211,000 km; 131,000 mi) 0.56 2–7 29.8[6]
2016-02-11 P10tI8h 0.00176 AU (263,000 km; 164,000 mi) 0.69 2–3 30.7 ?
2016-02-13 2016 CM194 0.000517 AU (77,300 km; 48,100 mi) 0.20 7–21 27.5[7]
2016-02-15 2016 DB 0.000828 AU (123,900 km; 77,000 mi) 0.32 4–14 28.5[8]
2016-02-25 2016 DY30 0.0000957 AU (14,320 km; 8,900 mi) 0.037 2–5 30.5[9]
2016-02-26 2016 DK2 0.00212 AU (317,000 km; 197,000 mi) 0.83 3–11 29.1[10]
2016-02-29 2016 DA31 0.00133 AU (199,000 km; 124,000 mi) 0.52 2–7 29.9[11] Yes
2016-03-03 2016 EK1 0.00135 AU (202,000 km; 125,000 mi) 0.53 2–9 29.1[12] Yes
2016-03-04 2016 EL1 0.00154 AU (230,000 km; 143,000 mi) 0.60 5–20 27.8[13]
2016-03-08 2016 EV28 0.00103 AU (154,000 km; 96,000 mi) 0.40 4–10 28.3[14]
2016-03-10 2016 EN157 0.00216 AU (323,000 km; 201,000 mi) 0.84 5–9 28.1[15]
2016-03-11 2016 EF195 0.000214 AU (32,000 km; 19,900 mi) 0.082 16–31 25.6[16]
2016-03-14 2016 FC1 0.00112 AU (168,000 km; 104,000 mi) 0.44 4–8 29.1[17]
2016-03-21 2016 FN56 0.00257 AU (384,000 km; 239,000 mi) 0.9995[note 3] 35–86 24.2[18] Yes?
2016-03-23 2016 FZ13 0.00252 AU (377,000 km; 234,000 mi) 0.98 4–10 28.3[19] Yes
2016-03-25 2016 FU6 0.00120 AU (180,000 km; 112,000 mi) 0.47 4–9 29.0[20]
2016-03-28 BeUc1Ig 0.00256 AU (383,000 km; 238,000 mi) 0.99 3–9 29.3 ?
2016-03-28 2016 FE15 0.00181 AU (271,000 km; 168,000 mi) 0.70 4–12 28.8[21] Yes
2016-04-01 XGB1CE8 0.000336 AU (50,300 km; 31,200 mi) 0.13 3–9 29.3 ?
2016-04-01 2016 GS134 0.00133 AU (199,000 km; 124,000 mi) 0.52 5–13 27.9[22]
2016-04-04 2016 GN134 0.000382 AU (57,100 km; 35,500 mi) 0.19 1–5 30.1[23]
2016-04-05 2016 FW13 0.00210 AU (314,000 km; 195,000 mi) 0.82 2–7 29.4[24]
2016-04-06 2016 GO206 0.00222 AU (332,000 km; 206,000 mi) 0.86 9–30 26.5
2016-04-08 2016 GO134 0.00222 AU (332,000 km; 206,000 mi) 0.86 5–18 27.3[25]
2016-05-05 2016 JS5 0.00136 AU (203,000 km; 126,000 mi) 0.53 1–5 30.6[26]
2016-06-04 2016 LR51 0.00235 AU (352,000 km; 218,000 mi) 0.91 7–24 27.4[27] Yes
2016-06-07 2016 LT1 0.000966 AU (144,500 km; 89,800 mi) 0.38 3–10 29.0[28]
2016-06-09 2016 LP10 0.000479 AU (71,700 km; 44,500 mi) 0.20 2–8 29.5[29]
2016-07-07 2016 NJ22 0.00191 AU (286,000 km; 178,000 mi) 0.74 4–16 28.3[30]
2016-07-11 2016 NK22 0.00177 AU (265,000 km; 165,000 mi) 0.69 3–12 28.9[31]
2016-08-09 DT16P09 0.000432 AU (64,600 km; 40,200 mi) 0.17 1–3 32.9 ?
2016-08-28 2016 QA2 0.000579 AU (86,600 km; 53,800 mi) 0.23 18–69 25.2[32]
2016-09-02 2016 RR10.000865 AU (129,400 km; 80,400 mi) 0.34 7–19 27.7[33]
2016-09-04 2016 RS10.00127 AU (190,000 km; 118,000 mi) 0.50 3–11 29.1[34]
2016-09-07 2016 RB1 0.000271 AU (40,500 km; 25,200 mi) 0.11 6–18 27.8[35]
2016-09-11 2016 RN41 0.000159 AU (23,800 km; 14,800 mi) 0.062 1–5 31.0[36]
2016-09-21 2016 SJ 0.000998 AU (149,300 km; 92,800 mi) 0.39 3–9 29.0[37]
2016-09-24 2016 SU2 0.00235 AU (352,000 km; 218,000 mi) 0.91 6–19 27.8[38]
2016-09-25 2016 SA2 0.00205 AU (307,000 km; 191,000 mi) 0.80 5–16 28.2[39]
2016-09-30 2016 TD 0.00151 AU (226,000 km; 140,000 mi) 0.59 5–16 28.2[40]
2016-10-03 2016 TH 0.000858 AU (128,400 km; 79,800 mi) 0.33 3–9 29.4[41]
2016-10-08 2016 TG94 0.00145 AU (217,000 km; 135,000 mi) 0.56 3–8 29.7[42]
2016-10-10 2016 TS54 0.000502 AU (75,100 km; 46,700 mi) 0.20 6–19 27.8[43]
2016-10-11 2016 TB19 0.00212 AU (317,000 km; 197,000 mi) 0.82 4–11 28.9[44]
2016-10-14 XT9D939 0.00241 AU (361,000 km; 224,000 mi) 0.94[note 4] 7–20 27.7
2016-10-17 2016 UD 0.000485 AU (72,600 km; 45,100 mi) 0.19 9–34 26.6[45]
2016-10-19 XUA7AB3 0.00233 AU (349,000 km; 217,000 mi) 0.91[note 5] 4–13 28.6
2016-11-02 2016 VA 0.000630 AU (94,200 km; 58,600 mi) 0.24 6–27 27.3[46]
2016-11-05 XV88D4F 0.000245 AU (36,700 km; 22,800 mi) 0.095[note 6] 2–7 30.0
2016-11-07 2016 VB1 0.00179 AU (268,000 km; 166,000 mi) 0.70 4–15 28.4[47]
2016-11-10 2016 VF18 0.000468 AU (70,000 km; 43,500 mi) 0.18 2–8 29.9[48]
2016-11-17 2016 WT 0.00129 AU (193,000 km; 120,000 mi) 0.50 2–8 29.7[49]
2016-11-21 2016 WT3 0.00243 AU (364,000 km; 226,000 mi) 0.94 4–13 28.6[50]
2016-11-25 2016 WW2 0.000894 AU (133,700 km; 83,100 mi) 0.35 3–11 29.0[51]
2016-11-30 XXAA162 0.000577 AU (86,300 km; 53,600 mi) 0.22[note 7] 3–9 29.3

Notes

  1. For a list of current Earth close approaches see NEO Earth Close Approaches
  2. Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km.
  3. The nominal approach of 2016 FN56 to Earth was 0.0025694 AU, or roughly 23.5 kilometers closer than 1 Lunar distance. However, the error in this close approach totals roughly 0.000207 AU or 31,000 kilometers, making the chance that it actually did pass within 1 Lunar distance of Earth an almost exact 50-50 chance- a 49.9994%:50.0006% chance, to be specific.
  4. distance error: 0.000244 AU, approach range: 0.84 to 1.03 LD
  5. distance error: 0.000609 AU, approach range: 0.67 to 1.14 LD
  6. distance error: 0.0000808 AU, approach range: 0.064 to 0.13 LD
  7. distance error: 0.000000326 AU, approach range: 0.22 to 0.22 LD

Timeline of close approaches less than one Lunar distance from the Moon in 2016

The number of asteroids listed here are significantly less than those of asteroids that approach Earth for several reasons. Asteroids that approach Earth not only move faster, but are brighter and are easier to detect with modern surveys because:

These factors severely limit the amount of Moon-approaching asteroids, to a level many times lower than the asteroids detected passing as close to Earth.

Date of
closest
approach
Object Nominal lunocentric
distance (AU)[note2 1]
Nominal lunocentric
distance (LD)
Size (m)
(approximate)
(H)
approach
distance
to Earth
(LD)
2016-01-01 2016 AN66 0.00214 AU (320,000 km; 199,000 mi) 0.83 7–24 27.3[52] 1.45
2016-01-10 2016 AQ164 0.00125 AU (187,000 km; 116,000 mi) 0.49 2–7 29.9[1] 0.27
2016-01-11 2016 AH164 0.000632 AU (94,500 km; 58,700 mi) 0.25 3–7 29.7[2] 0.069
2016-02-07 2016 CG18 0.00141 AU (211,000 km; 131,000 mi) 0.55 3–16 28.5[5] 0.39
2016-02-10 2016 CW264 0.00195 AU (292,000 km; 181,000 mi) 0.76 2–7 29.8[6] 0.56
2016-02-13 2016 CM194 0.00204 AU (305,000 km; 190,000 mi) 0.79 7–21 27.5[7] 0.20
2016-02-26 2016 DY30 0.00189 AU (283,000 km; 176,000 mi) 0.74 2–5 30.5[9] 0.037
2016-02-29 2016 DA31 0.00127 AU (190,000 km; 118,000 mi) 0.49 2–7 29.9[11] 0.52
2016-03-03 2016 EK1 0.00100 AU (150,000 km; 93,000 mi) 0.39 2–9 29.1[12] 0.53
2016-03-04 2016 EL1 0.00158 AU (236,000 km; 147,000 mi) 0.61 5–20 27.8[13] 0.60
2016-03-05 2016 EG1 0.00256 AU (383,000 km; 238,000 mi) 0.998 3–10 29.1[53] 1.14
2016-03-08 2016 EV28 0.00116 AU (174,000 km; 108,000 mi) 0.45 4–10 28.5[14] 0.40
2016-03-09 2016 EN157 0.00228 AU (341,000 km; 212,000 mi) 0.89 5–9 28.0[15] 0.84
2016-03-10 2016 EF195 0.00160 AU (239,000 km; 149,000 mi) 0.62 16–31 25.5[16] 0.082
2016-03-14 2016 FC1 0.00131 AU (196,000 km; 122,000 mi) 0.51 4–8 29.1[17] 0.44
2016-03-21 2016 FN56 0.00256 AU (383,000 km; 238,000 mi) 0.995[note2 2] 35–86 24.2[18] 0.9995
2016-03-24 2016 FZ13 0.000942 AU (140,900 km; 87,600 mi) 0.37 4–10 28.3[19] 0.98
2016-03-26 2016 FU6 0.00213 AU (319,000 km; 198,000 mi) 0.83 4–9 28.9[20] 0.47
2016-03-28 2016 FE15 0.00124 AU (186,000 km; 115,000 mi) 0.48 4–12 28.8[21] 0.70
2016-04-03 2016 FB13 0.00232 AU (347,000 km; 216,000 mi) 0.90 10–31 26.7[54] 1.23
2016-04-04 2016 GN134 0.00220 AU (329,000 km; 205,000 mi) 0.86 1–5 30.3[23] 0.19
2016-04-11 2016 FV13 0.00232 AU (347,000 km; 216,000 mi) 0.90 13–43 26.0[55] 1.81
2016-05-06 2016 JS5 0.00160 AU (239,000 km; 149,000 mi) 0.62 1–5 30.6[26] 0.53
2016-06-04 2016 LR51 0.00215 AU (322,000 km; 200,000 mi) 0.84 7–24 27.4[27] 0.91
2016-06-09 2016 LP10 0.00204 AU (305,000 km; 190,000 mi) 0.80 2–8 29.5[29] 0.20
2016-09-02 2016 RS1 0.00242 AU (362,000 km; 225,000 mi) 0.94 3–11 29.1[34] 0.50
2016-09-07 2016 RK40 0.00128 AU (191,000 km; 119,000 mi) 0.50 5–28 27.4[56] 1.35
2016-09-08 2016 RB1 0.00192 AU (287,000 km; 178,000 mi) 0.75 6–18 27.8[35] 0.11
2016-09-10 2016 SF1 0.00156 AU (233,000 km; 145,000 mi) 0.61 24–80 24.6[57] 1.32
2016-09-10 2016 RE34 0.00217 AU (325,000 km; 202,000 mi) 0.84 5–15 28.3[58] 1.19
2016-10-03 2016 TH 0.000908 AU (135,800 km; 84,400 mi) 0.35 3–9 29.4[41] 0.33
2016-10-07 2016 TG94 0.00179 AU (268,000 km; 166,000 mi) 0.70 3–8 29.7[42] 0.56
2016-10-10 2016 TS54 0.00210 AU (314,000 km; 195,000 mi) 0.82 6–18 27.9[43] 0.20
2016-10-18 2016 UD 0.00107 AU (160,000 km; 99,000 mi) 0.42 10–33 26.6[45] 0.19
2016-11-02 2016 VA 0.00229 AU (343,000 km; 213,000 mi) 0.89 6–27 27.3[46] 0.24
2016-11-05 XV88D4F 0.00251 AU (375,000 km; 233,000 mi) 0.98 2–7 30.0 0.095
2016-11-08 2016 VB1 0.00232 AU (347,000 km; 216,000 mi) 0.90 4–15 28.4[47] 0.70
2016-11-10 2016 VF18 0.00220 AU (329,000 km; 205,000 mi) 0.85 2–8 29.9[48] 0.18
2016-11-17 2016 WY 0.00242 AU (362,000 km; 225,000 mi) 0.94 3–10 29.3[59] 1.73
2016-11-17 2016 WT 0.00229 AU (343,000 km; 213,000 mi) 0.89 2–8 29.7[49] 0.50
2016-11-25 2016 WW2 0.000997 AU (149,100 km; 92,700 mi) 0.39 3–11 29.0[51] 0.35
2016-11-27 XWA260E 0.00256 AU (383,000 km; 238,000 mi) 0.997[note2 3] 5–15 28.3 1.12
2016-11-30 XXAA162 0.00193 AU (289,000 km; 179,000 mi) 0.75 3–9 29.3 0.22

Notes

  1. Distance from the center of the Moon to the center of the object. the Moon has a radius of approximately 1,740 km.
  2. For the Moon as well, the exact approach distance for 2016 FN56 is in high error, but with a higher certainty than to Earth: The error is slightly higher at 0.000208 AU, but as the approach distance is 0.0045 LD closer, the likelihood of a less-than-1-LD approach is nearly 0.6% higher.
  3. distance error: 0.00000445 AU, approach range: 0.995 to 0.9989 LD

Additional examples

An example list of near-Earth asteroids that passed more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2016.

Other objects

XF38FAC (Satellite 2015-007B) with an observation arc of only 17 minutes was estimated to have a chance of impacting Earth at 16:51 on 20 March 2016,[62] but turned out to be the SpaceX Falcon 9 second stage that sent Deep Space Climate Observatory out to L1.

See also

References

  1. 1 2 "JPL Small-Body Database Browser: (2016 AQ164)" (last observation: 2016-01-14).
  2. 1 2 "JPL Small-Body Database Browser: (2016 AH164)" (last observation: 2016-01-13).
  3. "JPL Small-Body Database Browser: (2016 AN165)" (last observation: 2016-01-14).
  4. "JPL Small-Body Database Browser: (2016 AN164)" (last observation: 2016-01-14).
  5. 1 2 "JPL Small-Body Database Browser: (2016 CG18)" (last observation: 2016-02-05).
  6. 1 2 "JPL Small-Body Database Browser: (2016 CW264)" (last observation: 2016-02-12).
  7. 1 2 "JPL Small-Body Database Browser: (2016 CM194)" (last observation: 2016-02-13).
  8. "JPL Small-Body Database Browser: (2016 DB)" (last observation: 2016-02-17).
  9. 1 2 "JPL Small-Body Database Browser: (2016 DY30)" (last observation: 2016-02-27).
  10. "JPL Small-Body Database Browser: (2016 DK2)" (last observation: 2016-03-01).
  11. 1 2 "JPL Small-Body Database Browser: (2016 DA31)" (last observation: 2016-02-29).
  12. 1 2 "JPL Small-Body Database Browser: (2016 EK1)" (last observation: 2016-03-03).
  13. 1 2 "JPL Small-Body Database Browser: (2016 EL1)" (last observation: 2016-03-03).
  14. 1 2 "JPL Small-Body Database Browser: (2016 EV28)" (last observation: 2016-03-07).
  15. 1 2 "JPL Small-Body Database Browser: (2016 EN157)" (last observation: 2016-03-15).
  16. 1 2 "JPL Small-Body Database Browser: (2016 EF195)" (last observation: 2016-03-17).
  17. 1 2 "JPL Small-Body Database Browser: (2016 FC1)" (last observation: 2016-03-18).
  18. 1 2 "JPL Small-Body Database Browser: (2016 FN56)" (last observation: 2016-04-05).
  19. 1 2 "JPL Small-Body Database Browser: (2016 FZ13)" (last observation: 2016-04-06).
  20. 1 2 "JPL Small-Body Database Browser: (2016 FU6)" (last observation: 2016-03-28).
  21. 1 2 "JPL Small-Body Database Browser: (2016 FE15)" (last observation: 2016-04-03).
  22. "JPL Small-Body Database Browser: (2016 GS134)" (last observation: 2016-04-07).
  23. 1 2 "JPL Small-Body Database Browser: (2016 GN134)" (last observation: 2016-04-07).
  24. "JPL Small-Body Database Browser: (2016 FW13)" (last observation: 2016-04-03).
  25. "JPL Small-Body Database Browser: (2016 GO134)" (last observation: 2016-04-08).
  26. 1 2 "JPL Small-Body Database Browser: (2016 JS5)" (last observation: 2016-05-05).
  27. 1 2 "JPL Small-Body Database Browser: (2016 LR51)" (last observation: 2016-06-13).
  28. "JPL Small-Body Database Browser: (2016 LT1)" (last observation: 2016-06-06).
  29. 1 2 "JPL Small-Body Database Browser: (2016 LP10)" (last observation: 2016-06-09).
  30. "JPL Small-Body Database Browser: (2016 NJ22)" (last observation: 2016-07-10).
  31. "JPL Small-Body Database Browser: (2016 NK22)" (last observation: 2016-07-10).
  32. "JPL Small-Body Database Browser: (2016 QA2)" (last observation: 2016-08-29).
  33. "JPL Small-Body Database Browser: (2016 RR1)" (last observation: 2016-09-06).
  34. 1 2 "JPL Small-Body Database Browser: (2016 RS1)" (last observation: 2016-09-06).
  35. 1 2 "JPL Small-Body Database Browser: (2016 RB1)" (last observation: 2016-09-06).
  36. "JPL Small-Body Database Browser: (2016 RN41)" (last observation: 2016-09-11).
  37. "JPL Small-Body Database Browser: (2016 SJ)" (last observation: 2016-09-24).
  38. "JPL Small-Body Database Browser: (2016 SU2)" (last observation: 2016-09-27).
  39. "JPL Small-Body Database Browser: (2016 SA2)" (last observation: 2016-09-26).
  40. "JPL Small-Body Database Browser: (2016 TD)" (last observation: 2016-10-02).
  41. 1 2 "JPL Small-Body Database Browser: (2016 TH)" (last observation: 2016-10-03).
  42. 1 2 "JPL Small-Body Database Browser: (2016 TG94)" (last observation: 2016-10-10).
  43. 1 2 "JPL Small-Body Database Browser: (2016 TS54)" (last observation: 2016-10-12).
  44. "JPL Small-Body Database Browser: (2016 TB19)" (last observation: 2016-10-10).
  45. 1 2 "JPL Small-Body Database Browser: (2016 UD)" (last observation: 2016-10-20).
  46. 1 2 "JPL Small-Body Database Browser: (2016 VA)" (last observation: 2016-11-01).
  47. 1 2 "JPL Small-Body Database Browser: (2016 VB1)" (last observation: 2016-11-06).
  48. 1 2 "JPL Small-Body Database Browser: (2016 VF18)" (last observation: 2016-11-11).
  49. 1 2 "JPL Small-Body Database Browser: (2016 WT)" (last observation: 2016-11-21).
  50. "JPL Small-Body Database Browser: (2016 WT3)" (last observation: 2016-11-25).
  51. 1 2 "JPL Small-Body Database Browser: (2016 Ww2)" (last observation: 2016-11-24).
  52. "JPL Small-Body Database Browser: (2016 AN66)" (last observation: 2016-01-16).
  53. "JPL Small-Body Database Browser: (2016 EG1)" (last observation: 2016-03-04).
  54. "JPL Small-Body Database Browser: (2016 FB13)" (last observation: 2016-04-02).
  55. "JPL Small-Body Database Browser: (2016 FV13)" (last observation: 2016-04-10).
  56. "JPL Small-Body Database Browser: (2016 RK40)" (last observation: 2016-09-14).
  57. "JPL Small-Body Database Browser: (2016 SF1)" (last observation: 2016-09-26).
  58. "JPL Small-Body Database Browser: (2016 RE34)" (last observation: 2016-09-17).
  59. "JPL Small-Body Database Browser: (2016 WY)" (last observation: 2016-11-21).
  60. Comet Flying by Earth Observed with Radar and Infrared. NASA press release. 24 March 2016.
  61. Near Earth Objects - Dynamic Site 2016FE13 ▹ CLOSE APPROACHES
  62. XF38FAC at Project Pluto
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