NASA / JPL ID: 3831212

Asteroid 2018 TZ1 Close Approach

Not flagged as hazardousNASA/JPL page

Notable Pass

Asteroid 2018 TZ1 is a near-Earth object catalogued by NASA under reference ID 3831212. Its estimated diameter is 27–59 m (average 43 m), inferred from brightness rather than measured directly. Its closest catalogued approach to Earth occurs on Tue, Sep 27, 2095, missing by 5,404,273 km — 14.05 lunar distances. NASA does not classify it as a potentially hazardous asteroid.

This score ranks how notable the asteroid approach is. It is not an impact prediction.

Closest approach

Approach date

2095-Sep-27 17:14

Miss distance (km)

5,404,273 km

Miss distance (LD)

14.05 LD

Miss distance (AU)

0.0361 AU

Relative velocity

6.7 km/s

Orbitfall Index

29/100

Size and brightness

Diameter range

27–59 m

Average diameter

43 m

Absolute magnitude

25.00

Related close approaches

Date	Orbiting	Miss (km)	Miss (LD)	Velocity (km/s)	Index
27/09/19Sat, Sep 27, 1919	Earth	6,537,115	17.00	7.1	23
14/04/26Wed, Apr 14, 1926	Earth	45,807,769	119.11	14.0	21
08/01/27Sat, Jan 8, 1927	Earth	49,421,519	128.51	5.7	17
08/10/27Sat, Oct 8, 1927	Earth	51,654,201	134.32	15.3	21
18/04/34Wed, Apr 18, 1934	Earth	10,714,396	27.86	6.3	17
19/04/72Wed, Apr 19, 1972	Earth	12,710,143	33.05	7.6	17
26/09/80Fri, Sep 26, 1980	Earth	5,725,297	14.89	6.7	27
15/04/87Wed, Apr 15, 1987	Earth	43,952,097	114.29	13.6	20
07/01/88Thu, Jan 7, 1988	Earth	49,494,619	128.70	5.7	17
08/10/88Sat, Oct 8, 1988	Earth	54,777,131	142.44	15.9	22
15/04/95Sat, Apr 15, 1995	Earth	14,896,189	38.73	5.7	17
07/04/02Sun, Apr 7, 2002	Earth	74,688,593	194.21	19.5	23
11/02/03Tue, Feb 11, 2003	Earth	45,239,297	117.64	5.9	17
01/10/03Wed, Oct 1, 2003	Earth	23,472,073	61.03	10.2	19
19/04/10Mon, Apr 19, 2010	Earth	19,965,844	51.92	9.1	18
07/12/10Tue, Dec 7, 2010	Earth	45,635,671	118.67	5.4	16
17/03/18Sat, Mar 17, 2018	Earth	32,723,580	85.09	5.7	17
26/09/18Wed, Sep 26, 2018	Earth	8,469,369	22.02	6.0	17
12/04/25Sat, Apr 12, 2025	Earth	54,117,497	140.72	15.5	21
18/01/26Sun, Jan 18, 2026	Earth	48,994,375	127.40	5.8	17
06/10/26Tue, Oct 6, 2026	Earth	43,654,128	113.51	13.8	21
19/04/33Tue, Apr 19, 2033	Earth	11,317,081	29.43	7.1	17
18/11/33Fri, Nov 18, 2033	Earth	40,667,081	105.75	5.2	16
26/09/41Thu, Sep 26, 2041	Earth	6,271,958	16.31	6.3	24
11/04/48Sat, Apr 11, 2048	Earth	57,355,607	149.14	16.1	22
05/10/49Tue, Oct 5, 2049	Earth	39,132,043	101.76	13.0	20
16/04/79Sun, Apr 16, 2079	Earth	38,407,171	99.87	12.5	20
10/10/80Thu, Oct 10, 2080	Earth	58,513,892	152.15	16.6	22
18/04/87Fri, Apr 18, 2087	Earth	11,330,837	29.46	6.2	17
06/11/87Thu, Nov 6, 2087	Earth	36,604,345	95.18	5.1	16
27/09/95Tue, Sep 27, 2095	Earth	5,404,273	14.05	6.7	29

Data source

All figures on this page come from NASA's Near Earth Object Web Service, maintained by the Center for Near-Earth Object Studies at JPL. The Orbitfall Index is calculated by Orbitfall from those values — see the methodology and the NASA asteroid tracker overview. For current passes, see asteroids passing Earth today.

Asteroid guide

Learn about close approaches

Asteroids passing Earth today

Today's catalogued close approaches, ranked.

Near-Earth objects today

What counts as a near-Earth object, and today's list.

Asteroid close approaches

What a close approach is and how it's measured.

NASA asteroid tracker

Where the data comes from and how often it updates.

Potentially hazardous asteroids

What NASA's PHA label does and doesn't mean.

Lunar distance explained

1 LD = 384,400 km — the yardstick for flybys.

Close approach explained

Why a close approach is a schedule, not a warning.

How NASA tracks asteroids

From first detection to orbit refinement.