Near-Earth asteroid

2017 UL44

2017 UL44 is a near-Earth asteroid with an estimated diameter of 46–103 m (151–338 ft). It passes Earth on October 29, 2026 at about 34,840,714 km (90.6 lunar distances). NASA does not classify it as potentially hazardous.

Not potentially hazardous

46–103 m

Estimated diameter

23.8

Absolute magnitude (H)

Approaches within 0.2 au, 1900–2200

This week’s flyby

Closest approach: 2026-Oct-29 23:19 UTC
Miss distance: 34,840,714 km · 90.6 lunar distances · 0.2329 au
Relative speed: 14.14 km/s (31,631 mph)

Upcoming close approaches to Earth

6 approaches within 0.2 au (about 30 million km) are calculated from now to 2200. The closest in the 1900–2200 record is on November 3, 2017 at about 5,108,767 km.

Future Earth approaches (JPL Close Approach Data)
Date (TDB)	Nominal distance km	Lunar dist.	Speed km/s	Time uncertainty
2031-Nov-02 18:02	20,707,337	53.9	17.86	1_00:18
2040-Nov-02 20:54	16,526,077	43.0	14.46	1_07:50
2054-Nov-04 03:17	5,288,285	13.8	15.73	10:37
2068-Nov-01 02:45	27,545,456	71.7	18.84	4_16:42
2077-Nov-04 00:20	6,133,513	16.0	15.2	10:23
2192-Nov-03 06:19	22,468,104	58.4	14.24	1_23:02

Recent past approaches

Past Earth approaches within 0.2 au since 1900 (JPL), most recent 10
Date (TDB)	Distance km	Lunar dist.	Speed km/s
2017-Nov-03 19:46	5,108,767	13.3	15.37
2008-Oct-31 15:39	28,758,695	74.8	19.05
1994-Nov-03 16:33	11,584,859	30.1	14.73
1985-Nov-03 10:55	6,507,507	16.9	16
1976-Nov-01 19:04	19,513,546	50.8	17.69
1944-Oct-30 23:09	29,725,097	77.3	14.14
1935-Nov-01 11:35	26,510,239	69.0	14.17
1926-Nov-01 18:41	23,923,691	62.2	14.21
1917-Nov-01 23:49	21,452,335	55.8	14.26
1908-Nov-02 03:44	18,535,176	48.2	14.36

← 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: 2017 UL44

Distances are nominal predictions and can change with new observations. OpenOrbit is not affiliated with or endorsed by NASA or JPL.