Near-Earth asteroid

2100 Ra-Shalom (1978 RA)

2100 Ra-Shalom (1978 RA) is a near-Earth asteroid with an estimated diameter of 1.5–3.4 km (0.9–2.1 mi), in the ATE orbit class. Its next listed approach within 0.2 au is on October 15, 2035. NASA does not classify it as potentially hazardous.

Not potentially hazardous

1.5–3.4 km

Estimated diameter

16.24

Absolute magnitude (H)

Approaches within 0.2 au, 1900–2200

Upcoming close approaches to Earth

36 approaches within 0.2 au (about 30 million km) are calculated from now to 2200. The closest in the 1900–2200 record is on October 11, 1931 at about 22,351,418 km.

Future Earth approaches (JPL Close Approach Data), first 30
Date (TDB)	Nominal distance km	Lunar dist.	Speed km/s	Time uncertainty
2035-Oct-15 00:14	28,514,850	74.2	15.21	< 00:01
2038-Oct-05 16:25	23,235,541	60.4	11.65	< 00:01
2041-Sep-15 12:44	27,879,059	72.5	11.34	< 00:01
2044-Aug-25 11:03	27,271,692	70.9	11.38	< 00:01
2047-Aug-10 06:13	26,917,145	70.0	13.18	< 00:01
2057-Oct-13 22:08	24,617,826	64.0	13.76	< 00:01
2060-Sep-29 23:16	24,734,512	64.3	11.42	< 00:01
2063-Sep-10 05:29	28,317,381	73.7	11.34	< 00:01
2066-Aug-20 09:20	26,332,217	68.5	11.52	< 00:01
2069-Aug-08 09:34	29,720,609	77.3	14.5	< 00:01
2079-Oct-12 08:44	22,764,308	59.2	12.61	< 00:01
2082-Sep-24 19:30	26,273,874	68.4	11.36	< 00:01
2085-Sep-03 21:31	28,202,191	73.4	11.33	< 00:01
2088-Aug-15 00:05	25,687,450	66.8	11.9	< 00:01
2101-Oct-09 07:23	22,830,131	59.4	11.88	< 00:01
2104-Sep-19 15:31	27,443,729	71.4	11.35	< 00:01
2107-Aug-30 14:25	27,599,311	71.8	11.34	< 00:01
2110-Aug-12 17:28	25,961,214	67.5	12.63	< 00:01
2120-Oct-15 12:05	26,659,837	69.4	14.52	< 00:01
2123-Oct-04 22:01	24,041,874	62.5	11.5	< 00:01
2126-Sep-14 08:18	28,116,920	73.1	11.35	< 00:01
2129-Aug-24 08:53	26,695,740	69.4	11.42	00:01
2132-Aug-10 01:18	27,784,813	72.3	13.76	< 00:01
2142-Oct-14 19:13	23,715,750	61.7	13.21	< 00:01
2145-Sep-28 23:31	25,560,292	66.5	11.36	00:01
2148-Sep-08 02:19	28,272,502	73.5	11.35	00:01
2151-Aug-19 12:36	25,793,665	67.1	11.66	00:01
2164-Oct-11 10:53	22,791,236	59.3	12.23	00:01
2167-Sep-23 17:50	26,906,673	70.0	11.34	00:02
2170-Sep-02 18:59	27,901,499	72.6	11.34	00:02

Orbit

Orbit class: ATE — Near-Earth asteroid orbits similar to that of 2062 Aten
Orbital period: 277.2 days (0.76 years)
Minimum orbit intersection distance: 0.1497 au (22,394,801 km)
Observed: October 3, 1975 to September 4, 2026

Recent past approaches

Past Earth approaches within 0.2 au since 1900 (JPL), most recent 15
Date (TDB)	Distance km	Lunar dist.	Speed km/s
2025-Aug-12 15:42	25,865,472	67.3	12.22
2022-Aug-31 17:28	28,024,169	72.9	11.35
2019-Sep-21 20:03	26,885,729	69.9	11.34
2016-Oct-09 14:10	22,426,217	58.3	12.19
2003-Aug-17 14:30	26,097,349	67.9	11.66
2000-Sep-06 01:01	28,357,772	73.8	11.34
1997-Sep-26 23:29	25,503,445	66.3	11.38
1994-Oct-12 22:42	23,178,694	60.3	13.11
1984-Aug-08 05:05	28,383,204	73.8	13.85
1981-Aug-22 11:08	26,933,601	70.1	11.42
1978-Sep-12 09:04	28,190,223	73.3	11.34
1975-Oct-03 00:21	23,868,340	62.1	11.51
1972-Oct-13 18:23	26,103,332	67.9	14.45
1962-Aug-10 19:49	26,411,504	68.7	12.68
1959-Aug-28 17:50	27,784,813	72.3	11.35

← 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: 2100 Ra-Shalom (1978 RA)

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