Asteroids

2024BU4 help

Last update: 2025-04-09 08:00 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.694

Aphelion (Q)

1.176

Eccentricity (e)

0.258

Inclination (i)

14.8

deg

Orbit period (P)

330.0

Earth MOID

0.05213

U parameter

5.6

Next Earth close approach

Date

2043-02-12

Nominal distance (from Earth center)

0.11404

17059712

Maximum Brightness

20.5

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

23.5

mag

Diameter

50 - 120*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-01-31

Observatory

Mt. Lemmon Survey

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

0.934651

1-sigma variation

0.000013

Unit

Eccentricity (e)

Value

0.257984

1-sigma variation

0.000069

Unit

Inclination (i)

Value

14.8066

1-sigma variation

0.0055

Unit

Long. of Ascending Node (Ω)

Value

324.3807

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

46.9232

1-sigma variation

0.0026

Unit

Mean Anomaly (M)

Value

233.18980

1-sigma variation

0.02099

Unit

Perihelion distance

Value

0.693526

1-sigma variation

Unit

Aphelion distance

Value

1.175776

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.270234

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.071354

1-sigma variation

Unit

MOID

Value

0.052131

1-sigma variation

Unit

Orbit Period

Value

330.0447

1-sigma variation

Unit

U parameter

Value

5.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.66566E-10	8.87016E-10	7.12864E-8	-6.29547E-9	3.37415E-8	-2.70860E-7
e	8.87016E-10	4.72627E-9	3.79812E-7	-3.35424E-8	1.79674E-7	-1.44269E-6
i	7.12864E-8	3.79812E-7	3.05238E-5	-2.69562E-6	1.44394E-5	-1.15941E-4
Ω	-6.29547E-9	-3.35424E-8	-2.69562E-6	2.38090E-7	-1.27524E-6	1.02391E-5
ω	3.37415E-8	1.79674E-7	1.44394E-5	-1.27524E-6	6.83537E-6	-5.48677E-5
M	-2.70860E-7	-1.44269E-6	-1.15941E-4	1.02391E-5	-5.48677E-5	4.40486E-4

Date of computation: 2025-04-09 08:00 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

23.509

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

50 - 120*

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

[-]

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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

489

Unit

Source

[1]

Normalized RMS of residuals

Value

0.594628

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-01-31.46199

Unit

Source

[2]

Last Observation

Value

2024-02-29.07108

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

102 (1)

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 2024BU4 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	1968-02-14 17:14	> 1 d	0.1305004	0.1005029	0.0106846
VENUS	1973-03-02 12:02	588.3	0.0347562	0.0317760	0.0037948
EARTH	1977-02-04 12:47	39.2	0.0741274	0.0604133	0.0054391
EARTH	1996-02-10 04:48	496.6	0.0934757	0.0840832	0.0032461
VENUS	2002-01-30 08:32	149.6	0.0350958	0.0328507	0.0009645
EARTH	2005-02-04 23:21	32.9	0.1316034	0.1261800	0.0018171
EARTH	2015-02-25 14:52	232.1	0.1925036	0.1904388	0.0006900
EARTH	2024-02-06 05:53	< 1 min	0.0524356	0.0523836	0.0000173
EARTH	2043-02-12 06:23	273.9	0.1140371	0.1099603	0.0013717
VENUS	2046-05-15 19:57	152.1	0.0460774	0.0405991	0.0019568
EARTH	2052-02-05 15:28	31.4	0.1102281	0.1050159	0.0017515
EARTH	2071-02-07 07:34	30.2	0.0632974	0.0624907	0.0002726
VENUS	2075-04-14 18:13	15.1	0.0450199	0.0441938	0.0002771
EARTH	2080-02-06 13:54	1.7	0.1581801	0.1569415	0.0004131
EARTH	2099-02-07 13:28	134.3	0.0650268	0.0620099	0.0010569
EARTH	2108-02-07 10:04	48.5	0.1492613	0.1425139	0.0022578
VENUS	2117-09-26 02:40	151.6	0.0434706	0.0391007	0.0016059

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
111.52704372	34.01772121	0.05263468	MINIMUM
285.40363391	180.91500805	0.21919897	MINIMUM
207.96432943	109.62446026	0.29415102	SADDLE
14.49080365	288.87728082	0.35250771	SADDLE
358.97168035	88.58577776	1.68553736	SADDLE
173.63269680	262.77263259	2.16781868	MAXIMUM

Download:

MOID Plots

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