Asteroids

2025LL help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.986

Aphelion (Q)

3.698

Eccentricity (e)

0.579

Inclination (i)

0.8

deg

Orbit period (P)

1308.9

Earth MOID

0.00099

U parameter

8.0

Next Earth close approach

Date

2068-06-16

Nominal distance (from Earth center)

0.12814

19169724

Maximum Brightness

20.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.2

mag

Diameter

100 - 210*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-06-05

Observatory

Pan-STARRS 1, Haleakala

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.341788

1-sigma variation

0.003864

Unit

Eccentricity (e)

Value

0.579073

1-sigma variation

0.000694

Unit

Inclination (i)

Value

0.8311

1-sigma variation

0.0006

Unit

Long. of Ascending Node (Ω)

Value

324.9896

1-sigma variation

0.0165

Unit

Arg. of Perihelion (ω)

Value

342.8163

1-sigma variation

0.0150

Unit

Mean Anomaly (M)

Value

339.98044

1-sigma variation

0.05197

Unit

Perihelion distance

Value

0.985722

1-sigma variation

Unit

Aphelion distance

Value

3.697854

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.009228

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

2.490694

1-sigma variation

Unit

MOID

Value

0.000989

1-sigma variation

Unit

Orbit Period

Value

1308.9402

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.49268E-5	2.68046E-6	2.35786E-6	6.37163E-5	-5.76924E-5	2.00804E-4
e	2.68046E-6	4.81340E-7	4.23411E-7	1.14417E-5	-1.03599E-5	3.60592E-5
i	2.35786E-6	4.23411E-7	3.72573E-7	1.00521E-5	-9.09912E-6	3.17191E-5
Ω	6.37163E-5	1.14417E-5	1.00521E-5	2.73480E-4	-2.47848E-4	8.57168E-4
ω	-5.76924E-5	-1.03599E-5	-9.09912E-6	-2.47848E-4	2.24703E-4	-7.76141E-4
M	2.00804E-4	3.60592E-5	3.17191E-5	8.57168E-4	-7.76141E-4	2.70135E-3

Date of computation: 2025-07-29 02:36 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

22.219

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

100 - 210*

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

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.623136

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-06-02.426528

Unit

Source

[2]

Last Observation

Value

2025-06-27.411459

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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

Close Approaches for 2025LL 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	1964-09-04 08:06	> 1 mo	0.0786158	0.0013372	0.3633322
EARTH	2007-09-18 13:48	> 1 w	0.1943112	0.0038885	0.2632249
EARTH	2025-06-16 02:49	< 1 min	0.1206444	0.1203131	0.0001104
EARTH	2068-06-16 10:10	> 1 mo	0.1281417	0.0107614	0.5074472
EARTH	2093-08-22 00:59	> 1 w	0.0127414	0.0023163	0.0524933
MARS	2125-05-07 08:03	> 1 mo	0.0336867	0.0319922	1.3368539
EARTH	2125-09-18 11:23	> 1 mo	0.1491952	0.0043541	5.3537374

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
11.06098995	227.50047764	0.00098866	MINIMUM
347.96566129	182.53740904	0.00963514	MINIMUM
359.25342081	204.52392999	0.02937808	SADDLE
359.44331396	24.88531549	1.97089328	SADDLE
179.84773330	25.38426964	2.71266066	SADDLE
179.84608261	205.38023195	4.71254212	MAXIMUM

Download:

MOID Plots

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