# List of asteroid close approaches to Earth in 2015

Below is the list of asteroid close approaches to Earth in 2015.

## Timeline of known close approaches less than one lunar distance from Earth in 2015

A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00257 AU) from Earth in 2015, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS).
The CNEOS database of close approaches lists some close approaches a full orbit or more before the discovery of the object, derived by orbit calculation. The list below only includes close approaches that are evidenced by observations, thus the pre-discovery close approaches would only be included if the object was found by precovery, but there was no such close approach in 2015.
This list and relevant databases do not consider impacts as close approaches, thus this list does not include any of the 43 objects that collided with Earth's atmosphere in 2015, none of which were discovered in advance, but were observed visually or recorded by sensors designed to detect detonation of nuclear devices.
Rows highlighted red indicate objects which were not discovered until after closest approach
Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach
Rows highlighted green indicate objects discovered more than one week before closest approach
Rows highlighted turquoise indicate objects discovered more than 7 weeks before closest approach
Rows highlighted blue indicate objects discovered more than one year before closest approach (i.e. objects successfully cataloged on a previous orbit, rather than being detected during final approach)
| Date of closest approach | Date discovered | Object | Nominal geocentric distance (AU) | Nominal geocentric distance (LD) | Size (m) (approximate) | (H) (abs. mag.) | Closer approach to Moon | Refs |
| 2015-01-14 | 2015-01-15 | 2015 AQ$_{43}$ | 0.00105 AU (157,000 km; 98,000 mi) | 0.41 | 6.7–15 | 28.0 | | data · 2015 AQ43 |
| 2015-01-18 | 2015-01-27 | 2015 BP513 | 0.00160 AU (239,000 km; 149,000 mi) | 0.62 | 12–27 | 26.7 | Yes | data · 2015 BP513 |
| 2015-01-20 | 2015-01-21 | 2015 BE$_{511}$ | 0.00108 AU (162,000 km; 100,000 mi) | 0.42 | 5.1–11 | 28.6 | | data · 2015 BE511 |
| 2015-02-11 | 2015-02-12 | 2015 CH$_{13}$ | 0.00189 AU (283,000 km; 176,000 mi) | 0.73 | 5.1–11 | 28.6 | | data · 2015 CH13 |
| 2015-02-17 | 2015-02-18 | 2015 DD$_1$ | 0.000262 AU (39,200 km; 24,400 mi) | 0.10 | 2.2–4.9 | 30.4 | | data · 2015 DD1 |
| 2015-02-18 | 2015-02-19 | 2015 DQ$_{224}$ | 0.000723 AU (108,200 km; 67,200 mi) | 0.28 | 3.7–8.2 | 29.3 | | data · 2015 DQ224 |
| 2015-03-10 | 2015-03-11 | 2015 ET | 0.000835 AU (124,900 km; 77,600 mi) | 0.33 | 12–27 | 26.7 | | data · 2015 ET |
| 2015-03-12 | 2015-03-11 | 2015 EO$_6$ | 0.000732 AU (109,500 km; 68,000 mi) | 0.28 | 2.4–5.4 | 30.2 | | data · 2015 EO6 |
| 2015-03-16 | 2015-03-17 | 2015 FU$_{344}$ | 0.00255 AU (381,000 km; 237,000 mi) | 0.99 | 1.7–3.8 | 31.0 | | data · 2015 FU344 |
| 2015-03-28 | 2015-03-25 | 2015 FM$_{118}$ | 0.00238 AU (356,000 km; 221,000 mi) | 0.92 | 4.8–11 | 28.7 | | data · 2015 FM118 |
| 2015-04-12 | 2015-04-11 | 2015 GU | 0.000739 AU (110,600 km; 68,700 mi) | 0.29 | 5.6–12 | 28.4 | | data · 2015 GU |
| 2015-04-14 | 2015-04-16 | 2015 HG$_{182}$ | 0.00220 AU (329,000 km; 205,000 mi) | 0.86 | 4.8–11 | 28.7 | Yes | data · 2015 HG182 |
| 2015-04-16 | 2015-04-15 | 2015 GL$_{13}$ | 0.00124 AU (186,000 km; 115,000 mi) | 0.48 | 4.6–10 | 28.8 | Yes | data · 2015 GL13 |
| 2015-04-21 | 2015-04-18 | 2015 HD$_1$ | 0.000395 AU (59,100 km; 36,700 mi) | 0.15 | 8.8–20 | 27.4 | | data · 2015 HD1 |
| 2015-05-15 | 2015-05-12 | 2015 JF$_1$ | 0.00208 AU (311,000 km; 193,000 mi) | 0.81 | 6.4–14 | 28.1 | Yes | data · 2015 JF1 |
| 2015-05-23 | 2015-05-25 | 2015 KW$_{121}$ | 0.00191 AU (286,000 km; 178,000 mi) | 0.74 | 16–36 | 26.1 | | data · 2015 KW121 |
| 2015-06-08 | 2015-06-07 | 2015 LF | 0.00132 AU (197,000 km; 123,000 mi) | 0.51 | 13–28 | 26.6 | | data · 2015 LF |
| 2015-08-06 | 2015-08-07 | 2015 PK | 0.000531 AU (79,400 km; 49,400 mi) | 0.21 | 6.3–14 | 28.1 | | data · 2015 PK |
| 2015-09-22 | 2015-09-24 | 2015 SK$_7$ | 0.000178 AU (26,600 km; 16,500 mi) | 0.07 | 4.4–9.9 | 28.9 | | data · 2015 SK7 |
| 2015-10-13 | 2015-10-11 | 2015 TC25 | 0.000741 AU (110,900 km; 68,900 mi) | 0.29 | 3.6–8.1 2 | 29.3 | | data · 2015 TC25 |
| 2015-10-22 | 2015-10-24 | 2015 UM$_{52}$ | 0.000871 AU (130,300 km; 81,000 mi) | 0.34 | 7.3–16 | 27.8 | | data · 2015 UM52 |
| 2015-11-05 | 2015-11-07 | 2015 VP$_{64}$ | 0.00187 AU (280,000 km; 174,000 mi) | 0.73 | 5.8–13 | 28.3 | Yes | data · 2015 VP64 |
| 2015-11-06 | 2015-11-08 | 2015 VU$_{64}$ | 0.000671 AU (100,400 km; 62,400 mi) | 0.26 | 2–4.5 | 30.6 | | data · 2015 VU64 |
| 2015-11-15 | 2015-11-14 | 2015 VY$_{105}$ | 0.000231 AU (34,600 km; 21,500 mi) | 0.09 | 4.2–9.4 | 29.0 | | data · 2015 VY105 |
| 2015-11-20 | 2015-11-21 | 2015 WP$_2$ | 0.00154 AU (230,000 km; 143,000 mi) | 0.60 | 2.5–5.7 | 30.1 | Yes | data · 2015 WP2 |
| 2015-12-13 | 2015-12-16 | 2015 YJ | 0.000476 AU (71,200 km; 44,200 mi) | 0.19 | 6.1–14 | 28.2 | | data · 2015 YJ |
| 2015-12-15 | 2015-12-06 | 2015 XY261 | 0.00193 AU (289,000 km; 179,000 mi) | 0.75 | 9.7–22 | 27.2 | | data · 2015 XY261 |

### Warning times by size

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.
Absolute magnitude H ≥ 30 (smallest)
(size of a person for comparison)
Absolute magnitude 30 > H ≥ 29
Absolute magnitude 29 > H ≥ 28
Absolute magnitude 28 > H ≥ 27
Absolute magnitude 27 > H ≥ 26
* After closest approach: 3 (75.0%)
* < 24 hours before: 0 (0.0%)
* up to 7 days before: 1 (25.0%)
* > one week before: 0 (0.0%)
* > 7 weeks before: 0 (0.0%)
* > one year before: 0 (0.0%)
Absolute magnitude 26 > H ≥ 25
None
Absolute magnitude 25 > H (largest)
None