When does 1997 XF11 pass Earth?
1997 XF11: closest approach October 2028
1997 XF11 passes Earth on October 26, 2028 at 06:43 UTC, 929,228 km from Earth's centre (2.4 lunar distances).
Distance through the flyby
lunar distances, ±12 h (JPL Horizons)Can you see it?
JPL Horizons gives a brightest apparent magnitude of 8.6 as seen from Earth's centre, at 18:44 UTC on Oct 26, 2028: a binocular object. At closest approach it is overhead at about 21°N, 4°W, where the Sun is up or in twilight. Seen from the ground, its position and brightness differ from the geocentric values, the more so the closer it comes.
Impact risk
1997 XF11 is not on JPL's Sentry impact-monitoring list: no possible impact has been found for it.
Physical data
| Absolute magnitude H | 17.01 |
| Diameter | 704 m |
| Geometric albedo | 0.772 |
| Rotation period | 3.259 h |
| Orbit class | Apollo |
| Potentially hazardous asteroid (PHA) | yes |
JPL Small-Body Database: 35396 (1997 XF11).
Every close approach, 1900–2200
All passes within 0.2 au (78 lunar distances) computed by JPL. None comes closer than the 2028 pass. The uncertainty column is JPL's 3-sigma timing uncertainty; it grows for dates far from today.
| Date | Lunar dist. | Distance | km/s | Time ± |
|---|---|---|---|---|
| Jun 8, 1912 | 67.6 | 25.99 million km | 9.8 | 00:09 |
| May 7, 1919 | 73.5 | 28.25 million km | 19.5 | 00:03 |
| Oct 31, 1924 | 39.1 | 15.03 million km | 17.1 | 00:04 |
| May 18, 1945 | 11.7 | 4.50 million km | 13.7 | < 00:01 |
| Oct 25, 1957 | 6.0 | 2.30 million km | 13.6 | < 00:01 |
| May 19, 1971 | 12.3 | 4.74 million km | 13.6 | < 00:01 |
| May 8, 1997 | 60.5 | 23.26 million km | 18.5 | < 00:01 |
| Oct 31, 2002 | 24.8 | 9.52 million km | 16.0 | < 00:01 |
| Jun 10, 2016 | 70.0 | 26.93 million km | 9.8 | < 00:01 |
| Oct 26, 2028 | 2.4 | 929,228 km | 13.9 | < 00:01 |
| Jun 8, 2035 | 68.0 | 26.14 million km | 9.7 | 00:03 |
| Nov 4, 2040 | 59.4 | 22.83 million km | 18.6 | 00:01 |
| May 10, 2078 | 47.9 | 18.43 million km | 17.6 | 00:03 |
| Oct 9, 2083 | 60.5 | 23.24 million km | 10.0 | 00:08 |
| May 19, 2090 | 14.4 | 5.54 million km | 13.4 | 00:02 |
| Oct 27, 2095 | 5.1 | 1.96 million km | 13.7 | 00:02 |
| May 19, 2102 | 12.7 | 4.87 million km | 13.6 | 00:20 |
| Oct 15, 2107 | 52.3 | 20.12 million km | 10.3 | 02:09 |
| May 12, 2114 | 40.8 | 15.70 million km | 17.0 | 01:12 |
| Nov 2, 2148 | 31.4 | 12.06 million km | 16.4 | 03:38 |
| May 26, 2155 | 36.6 | 14.08 million km | 11.5 | 06:10 |
| Oct 23, 2160 | 27.7 | 10.64 million km | 12.0 | 04:55 |
| May 16, 2167 | 22.6 | 8.69 million km | 15.5 | 01:21 |
Questions
Will 1997 XF11 hit Earth?
1997 XF11 is not on JPL's Sentry impact-monitoring list: no possible impact has been found for it.
How close will 1997 XF11 come?
929,228 km from Earth's centre, 922,857 km above the surface, on Oct 26, 2028 at 06:43 UTC (NASA JPL).
How big is 1997 XF11?
700 m (measured). Its rotation period is 3.259 hours.
Can I see 1997 XF11?
At its brightest about magnitude 8.6 (JPL Horizons, geocentric): a binocular object.
Sources: NASA/JPL CNEOS close-approach data, Sentry, Small-Body Database and Horizons (geocentric ephemeris). Data fetched 30 Oct 2026, 00:24 UTC; refreshed weekly. Times converted from TDB to UTC.