Asteroids

2000TL1 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.936

Aphelion (Q)

1.740

Eccentricity (e)

0.300

Inclination (i)

3.6

deg

Orbit period (P)

565.4

Earth MOID

0.03506

U parameter

0.0

Next Earth close approach

Date

2031-06-04

Nominal distance (from Earth center)

0.05113

7649253

Maximum Brightness

19.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.3

mag

Diameter

60 - 130*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2000-10-01

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.338108

1-sigma variation

2.397E-9

Unit

Eccentricity (e)

Value

0.300325

1-sigma variation

1.237E-7

Unit

Inclination (i)

Value

3.6059

1-sigma variation

9.128E-6

Unit

Long. of Ascending Node (Ω)

Value

27.1656

1-sigma variation

4.537E-5

Unit

Arg. of Perihelion (ω)

Value

279.4890

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

251.19396

1-sigma variation

0.00002

Unit

Perihelion distance

Value

0.936240

1-sigma variation

Unit

Aphelion distance

Value

1.739976

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.163443

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.277621

1-sigma variation

Unit

MOID

Value

0.035059

1-sigma variation

Unit

Orbit Period

Value

565.3731

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.74388E-18	-2.83141E-16	6.69052E-15	3.45059E-14	-4.67547E-14	1.09214E-14
e	-2.83141E-16	1.53122E-14	-2.90516E-13	-1.76259E-12	1.67980E-12	-1.78587E-13
i	6.69052E-15	-2.90516E-13	8.33166E-11	-6.87930E-11	-4.90091E-11	6.78494E-11
Ω	3.45059E-14	-1.76259E-12	-6.87930E-11	2.05881E-9	-2.42006E-9	2.27512E-10
ω	-4.67547E-14	1.67980E-12	-4.90091E-11	-2.42006E-9	3.81917E-9	-7.84766E-10
M	1.09214E-14	-1.78587E-13	6.78494E-11	2.27512E-10	-7.84766E-10	3.12428E-10

Date of computation: 2026-03-17 23:26 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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

23.28

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

60 - 130*

Unit

Source

[4]

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]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

6405

Unit

Source

[1]

Unobserved

Value

3097

Unit

Source

[1]

Normalized RMS of residuals

Value

0.570154

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-04-02.508757

Unit

Source

[2]

Last Observation

Value

2017-10-15.877546

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

42 (0)

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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2000TL1 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1952-09-10 16:32	< 1 min	0.0478055	0.0478044	0.0000004
MARS	1961-05-03 23:07	< 1 min	0.0481347	0.0481339	0.0000002
EARTH	1966-06-01 04:45	< 1 min	0.0632524	0.0632514	0.0000004
EARTH	1983-07-15 05:07	< 1 min	0.0964834	0.0964828	0.0000002
EARTH	2000-09-13 11:27	< 1 min	0.0412677	0.0412672	0.0000002
EARTH	2014-05-23 14:39	< 1 min	0.1664518	0.1664503	0.0000005
EARTH	2017-09-27 00:15	< 1 min	0.1029752	0.1029748	0.0000001
EARTH	2031-06-04 23:34	< 1 min	0.0511321	0.0511316	0.0000002
EARTH	2048-06-12 14:02	< 1 min	0.0579091	0.0579079	0.0000004
EARTH	2065-07-27 03:01	1.3	0.0993753	0.0993749	0.0000001
EARTH	2082-09-12 14:08	< 1 min	0.0452411	0.0452384	0.0000009
EARTH	2099-09-14 18:20	< 1 min	0.0405790	0.0405755	0.0000012
EARTH	2116-09-01 00:09	4.3	0.0729362	0.0729214	0.0000049

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
36.19479591	254.34493665	0.03517682	MINIMUM
321.19862837	153.54866166	0.04868688	MINIMUM
357.61103619	202.49179225	0.10071396	SADDLE
179.12265370	24.46374264	0.75920909	SADDLE
358.60875663	23.86413460	1.92059325	SADDLE
179.27490324	204.56724177	2.75524680	MAXIMUM

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MOID Plots

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