Asteroids

2000EM26 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.436

Aphelion (Q)

1.199

Eccentricity (e)

0.467

Inclination (i)

3.8

deg

Orbit period (P)

269.8

Earth MOID

0.01845

U parameter

1.6

A₂

-165.0

10^-15au/days²

Next Earth close approach

Date

2031-02-18

Nominal distance (from Earth center)

0.03106

4646193

Maximum Brightness

17.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.5

mag

Diameter

80 - 190*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2000-03-05

Observatory

Lincoln Laboratory ETS, New Mexico

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.817233

1-sigma variation

2.073E-8

Unit

Eccentricity (e)

Value

0.466744

1-sigma variation

4.341E-7

Unit

Inclination (i)

Value

3.8362

1-sigma variation

8.990E-6

Unit

Long. of Ascending Node (Ω)

Value

344.9107

1-sigma variation

4.410E-5

Unit

Arg. of Perihelion (ω)

Value

24.4192

1-sigma variation

4.585E-5

Unit

Mean Anomaly (M)

Value

60.56090

1-sigma variation

0.00013

Unit

Perihelion distance

Value

0.435794

1-sigma variation

Unit

Aphelion distance

Value

1.198672

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.559749

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.118751

1-sigma variation

Unit

MOID

Value

0.018454

1-sigma variation

Unit

Orbit Period

Value

269.8468

1-sigma variation

Unit

U parameter

Value

1.6

1-sigma variation

Unit

A₂

Value

-165.04554

1-sigma variation

18.22310

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	4.29676E-16	-8.53271E-15	-1.11445E-13	-7.45612E-14	1.19753E-13	-2.45033E-12	3.72948E-7
e	-8.53271E-15	1.88435E-13	2.76472E-12	2.75773E-12	-2.64151E-12	4.66657E-11	-7.36641E-6
i	-1.11445E-13	2.76472E-12	8.08149E-11	2.43422E-10	-2.00068E-10	5.25023E-10	-8.79216E-5
Ω	-7.45612E-14	2.75773E-12	2.43422E-10	1.94512E-9	-1.84010E-9	2.45235E-10	-2.48727E-5
ω	1.19753E-13	-2.64151E-12	-2.00068E-10	-1.84010E-9	2.10253E-9	-1.31171E-9	1.11378E-4
M	-2.45033E-12	4.66657E-11	5.25023E-10	2.45235E-10	-1.31171E-9	1.58045E-8	-2.23281E-3
A₂	3.72948E-7	-7.36641E-6	-8.79216E-5	-2.48727E-5	1.11378E-4	-2.23281E-3	3.32080E2

Date of computation: 2025-09-10 00:30 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

22.507

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

80 - 190*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

7358

Unit

Source

[1]

Unobserved

Value

1980

Unit

Source

[1]

Normalized RMS of residuals

Value

0.718012

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-03-05.24192

Unit

Source

[2]

Last Observation

Value

2020-04-27.294166

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

97 (4)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2000EM26 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1950-05-04 05:36	< 1 min	0.1951350	0.1950678	0.0000224
EARTH	1955-02-17 19:05	< 1 min	0.0197654	0.0197635	0.0000007
EARTH	1958-03-16 22:59	2.1	0.1885356	0.1885286	0.0000023
EARTH	1961-04-23 15:19	1.6	0.1536001	0.1535901	0.0000034
EARTH	1964-05-06 04:52	< 1 min	0.1175986	0.1175817	0.0000056
EARTH	1969-02-18 00:08	< 1 min	0.0860854	0.0860639	0.0000072
EARTH	1972-03-05 12:02	1.5	0.1572749	0.1572649	0.0000033
EARTH	1975-04-13 04:08	1.2	0.1860637	0.1860609	0.0000009
EARTH	1978-05-07 19:31	< 1 min	0.0638350	0.0638316	0.0000011
EARTH	1983-02-20 17:24	< 1 min	0.1660258	0.1660161	0.0000033
EARTH	1986-02-24 13:08	< 1 min	0.1096474	0.1096417	0.0000019
EARTH	1989-04-03 04:17	< 1 min	0.1991850	0.1991841	0.0000003
EARTH	1992-05-06 05:05	< 1 min	0.0719678	0.0719668	0.0000003
EARTH	2000-02-19 09:53	< 1 min	0.0473417	0.0473412	0.0000002
EARTH	2003-03-24 18:45	< 1 min	0.1987032	0.1987024	0.0000003
EARTH	2006-05-01 09:33	< 1 min	0.1187297	0.1187263	0.0000012
EARTH	2009-05-05 01:57	< 1 min	0.1720671	0.1720625	0.0000015
EARTH	2014-02-17 18:29	< 1 min	0.0366552	0.0366544	0.0000003
EARTH	2017-03-10 08:23	< 1 min	0.1731314	0.1731305	0.0000003
EARTH	2020-04-14 00:11	< 1 min	0.1844517	0.1844507	0.0000003
EARTH	2023-05-08 10:21	< 1 min	0.0602667	0.0602663	0.0000001
EARTH	2031-02-18 14:24	< 1 min	0.0310579	0.0310506	0.0000024
EARTH	2034-03-18 14:23	< 1 min	0.1920242	0.1920212	0.0000010
EARTH	2037-04-22 13:59	< 1 min	0.1605827	0.1605791	0.0000012
EARTH	2040-05-07 09:04	< 1 min	0.0905165	0.0905097	0.0000023
EARTH	2045-02-20 03:25	< 1 min	0.1566484	0.1566338	0.0000049
EARTH	2048-02-23 13:46	< 1 min	0.0975793	0.0975672	0.0000040
EARTH	2054-05-02 09:40	< 1 min	0.1162595	0.1162516	0.0000026
EARTH	2057-05-06 01:06	< 1 min	0.1546279	0.1546163	0.0000039
EARTH	2062-02-18 15:26	< 1 min	0.0855673	0.0855511	0.0000054
EARTH	2065-03-02 09:48	1.1	0.1429010	0.1428915	0.0000031
EARTH	2068-04-05 03:41	1.2	0.1995767	0.1995759	0.0000003
EARTH	2071-05-06 16:39	< 1 min	0.0839359	0.0839300	0.0000020
EARTH	2074-05-05 02:07	< 1 min	0.1956725	0.1956638	0.0000029
EARTH	2079-02-18 10:30	< 1 min	0.0529125	0.0529016	0.0000036
EARTH	2082-03-05 20:18	< 1 min	0.1565707	0.1565655	0.0000017
EARTH	2085-04-07 11:52	< 1 min	0.1977409	0.1977404	0.0000002
EARTH	2088-05-06 10:49	< 1 min	0.0802023	0.0802011	0.0000004
EARTH	2091-05-05 11:11	< 1 min	0.1957157	0.1957143	0.0000005
EARTH	2096-02-18 21:12	< 1 min	0.0597459	0.0597444	0.0000005
EARTH	2099-03-05 03:39	< 1 min	0.1522551	0.1522543	0.0000003
EARTH	2102-04-08 04:48	< 1 min	0.1983239	0.1983225	0.0000004
EARTH	2105-05-07 20:17	< 1 min	0.0796443	0.0796418	0.0000008
VENUS	2108-06-01 18:04	< 1 min	0.0472472	0.0472450	0.0000007
VENUS	2112-02-10 08:35	< 1 min	0.0431378	0.0431366	0.0000004
EARTH	2113-02-19 02:10	< 1 min	0.0301787	0.0301779	0.0000003
VENUS	2115-10-21 11:45	< 1 min	0.0415804	0.0415796	0.0000003
EARTH	2116-03-11 03:20	< 1 min	0.1714965	0.1714958	0.0000002
EARTH	2119-04-14 22:59	< 1 min	0.1879081	0.1879066	0.0000005
EARTH	2122-05-09 15:49	< 1 min	0.0618829	0.0618821	0.0000003

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
117.10371486	45.97356668	0.01853437	MINIMUM
239.38852470	124.22354211	0.06000521	MINIMUM
179.43872428	85.93147316	0.20209032	SADDLE
356.21663311	262.91900340	0.56571004	SADDLE
356.08114966	82.68501016	1.43407905	SADDLE
178.44458151	265.33146620	2.19941064	MAXIMUM

Download:

MOID Plots

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