Near-Earth asteroid
2015 WZ12
2015 WZ12 is a near-Earth asteroid with an estimated diameter of 15–33 m (49–108 ft). It passes Earth on October 30, 2026 at about 10,266,782 km (26.7 lunar distances). NASA does not classify it as potentially hazardous.
Not potentially hazardous
15–33 m
Estimated diameter
26.3
Absolute magnitude (H)
37
Approaches within 0.2 au, 1900–2200
This week’s flyby
- Closest approach
- 2026-Oct-30 07:46 UTC
- Miss distance
- 10,266,782 km · 26.7 lunar distances · 0.06863 au
- Relative speed
- 10.34 km/s (23,127 mph)
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Upcoming close approaches to Earth
28 approaches within 0.2 au (about 30 million km) are calculated from now to 2200. The closest in the 1900–2200 record is on December 6, 1977 at about 837,748 km.
| Date (TDB) | Nominal distance km | Lunar dist. | Speed km/s | Time uncertainty |
|---|---|---|---|---|
| 2026-Oct-30 07:46 | 10,266,902 | 26.7 | 10.34 | 05:33 |
| 2034-Nov-25 17:24 | 4,561,239 | 11.9 | 7.72 | 1_17:48 |
| 2042-Dec-13 17:16 | 15,230,559 | 39.6 | 11.84 | 00:32 |
| 2045-Oct-30 20:47 | 8,218,907 | 21.4 | 9.76 | 06:25 |
| 2053-Nov-25 21:16 | 4,516,360 | 11.7 | 7.73 | 01:17 |
| 2061-Dec-11 20:45 | 6,366,885 | 16.6 | 9.79 | 06:32 |
| 2064-Oct-28 08:52 | 19,966,828 | 51.9 | 12.8 | 00:35 |
| 2069-Dec-13 08:53 | 19,589,841 | 51.0 | 12.9 | 01:19 |
| 2072-Oct-29 12:17 | 9,396,242 | 24.4 | 10.17 | 10:59 |
| 2080-Nov-11 17:12 | 4,655,486 | 12.1 | 7.89 | 4_16:06 |
| 2088-Dec-10 23:21 | 5,024,992 | 13.1 | 9.45 | 1_19:10 |
| 2091-Oct-29 17:09 | 15,971,069 | 41.5 | 11.84 | 01:08 |
| 2099-Nov-22 08:29 | 4,852,955 | 12.6 | 7.71 | 3_10:33 |
| 2107-Dec-15 03:02 | 13,655,294 | 35.5 | 11.46 | 10:05 |
| 2110-Oct-31 17:59 | 9,198,773 | 23.9 | 10.12 | 2_05:31 |
| 2126-Dec-14 04:37 | 8,527,079 | 22.2 | 10.26 | 1_09:30 |
| 2129-Oct-30 08:19 | 15,097,417 | 39.3 | 11.63 | 03:49 |
| 2137-Nov-13 05:56 | 4,603,126 | 12.0 | 7.91 | 2_09:25 |
| 2145-Dec-11 16:52 | 3,716,011 | 9.67 | 9.15 | 4_00:40 |
| 2148-Oct-30 05:37 | 17,493,975 | 45.5 | 12.23 | 00:18 |
| 2156-Nov-23 16:02 | 4,745,244 | 12.3 | 7.72 | 13:01 |
| 2164-Dec-14 12:53 | 20,236,104 | 52.6 | 13 | 06:46 |
| 2167-Nov-06 20:22 | 4,139,373 | 10.8 | 8.5 | 6_04:09 |
| 2175-Dec-14 04:01 | 7,426,038 | 19.3 | 9.97 | 5_05:22 |
| 2178-Oct-31 15:49 | 11,626,747 | 30.2 | 10.75 | 2_21:42 |
| 2189-Oct-31 14:49 | 29,476,764 | 76.7 | 15.12 | 1_07:50 |
| 2194-Dec-14 22:45 | 22,556,367 | 58.7 | 13.53 | 04:26 |
| 2197-Nov-07 12:53 | 3,871,593 | 10.1 | 8.35 | 3_18:28 |
Recent past approaches
| Date (TDB) | Distance km | Lunar dist. | Speed km/s |
|---|---|---|---|
| 2023-Dec-14 03:29 | 13,495,224 | 35.1 | 11.45 |
| 2015-Dec-01 09:33 | 3,391,384 | 8.82 | 7.89 |
| 2007-Oct-30 05:34 | 11,728,473 | 30.5 | 10.7 |
| 2004-Dec-12 08:15 | 8,322,130 | 21.6 | 10.24 |
| 1996-Nov-09 17:53 | 4,809,572 | 12.5 | 7.99 |
| 1993-Dec-12 12:46 | 27,790,796 | 72.3 | 14.82 |
| 1988-Oct-28 17:52 | 22,369,370 | 58.2 | 13.38 |
| 1985-Dec-08 11:14 | 1,151,904 | 3.00 | 8.7 |
| 1977-Dec-06 08:13 | 837,748 | 2.18 | 8.38 |
← All asteroids passing Earth this week
Sources
- Size, hazard status and this week’s approach — NASA NeoWs (copy taken Oct 28, 2026, 2:39 AM EDT)
- Close-approach list — JPL SBDB Close Approach Data API (copy taken Oct 28, 2026, 2:39 AM EDT)
- Full orbit details — JPL Small-Body Database: 2015 WZ12
Distances are nominal predictions and can change with new observations. OpenOrbit is not affiliated with or endorsed by NASA or JPL.