Asteroids

2024CU help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.969

Aphelion (Q)

2.715

Eccentricity (e)

0.474

Inclination (i)

2.0

deg

Orbit period (P)

913.1

Earth MOID

0.00084

U parameter

5.3

Next Earth close approach

Date

2029-02-10

Nominal distance (from Earth center)

0.00532

796286

Maximum Brightness

19.3

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-02-05

Observatory

Kitt Peak-Bok

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

1.841905

1-sigma variation

0.000048

Unit

Eccentricity (e)

Value

0.474131

1-sigma variation

0.000014

Unit

Inclination (i)

Value

2.0137

1-sigma variation

4.712E-5

Unit

Long. of Ascending Node (Ω)

Value

320.5312

1-sigma variation

1.210E-5

Unit

Arg. of Perihelion (ω)

Value

198.1674

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

171.45049

1-sigma variation

0.00674

Unit

Perihelion distance

Value

0.968601

1-sigma variation

Unit

Aphelion distance

Value

2.715209

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.586979

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.002862

1-sigma variation

Unit

MOID

Value

0.000840

1-sigma variation

Unit

Orbit Period

Value

913.0601

1-sigma variation

Unit

U parameter

Value

5.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.33224E-9	6.79723E-10	2.25799E-9	-1.11440E-10	4.58840E-9	-3.25722E-7
e	6.79723E-10	1.98103E-10	6.58089E-10	-3.24593E-11	1.33746E-9	-9.49304E-8
i	2.25799E-9	6.58089E-10	2.22014E-9	-1.66605E-10	4.50911E-9	-3.15355E-7
Ω	-1.11440E-10	-3.24593E-11	-1.66605E-10	1.46495E-10	-3.36641E-10	1.55550E-8
ω	4.58840E-9	1.33746E-9	4.50911E-9	-3.36641E-10	9.33395E-9	-6.40877E-7
M	-3.25722E-7	-9.49304E-8	-3.15355E-7	1.55550E-8	-6.40877E-7	4.54904E-5

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

26.279

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

15 - 30*

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

376

Unit

Source

[1]

Normalized RMS of residuals

Value

0.50645

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-02-05.195139

Unit

Source

[2]

Last Observation

Value

2024-05-14.205766

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

46 (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 2024CU 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	1960-03-19 12:12	> 1 d	0.0238945	0.0238054	0.0009848
EARTH	1992-03-16 01:03	> 1 d	0.0267135	0.0253250	0.0009467
EARTH	2024-02-11 08:57	< 1 s	0.0046227	0.0046224	0.0000001
EARTH	2029-02-10 14:33	475.8	0.0053228	0.0032886	0.0006834
MARS	2056-09-20 21:06	> 1 w	0.0394701	0.0393933	0.0149933
EARTH	2067-02-03 13:36	> 1 mo	0.0168305	0.0006790	0.3242992
EARTH	2072-03-29 21:53	> 1 mo	0.0345108	0.0237955	1.5762518
EARTH	2120-01-19 15:41	> 1 mo	0.1282958	0.0052204	22.9623121
EARTH	2125-03-14 15:39	> 1 mo	0.0255249	0.0243612	1.9483439

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
348.67963150	37.41289666	0.00047148	MINIMUM
12.35163096	76.41249434	0.02273481	MINIMUM
4.10361272	62.81213204	0.02526109	SADDLE
180.59040110	237.49413365	1.70705987	SADDLE
1.63189719	238.69970302	1.97762881	SADDLE
180.54602972	57.46199301	3.70604253	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2024CU

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2079-02-09.274	80438.274	-0.993	0.69 ± 0.032	8.56E6	9.70E-8	2.08E-8	-7.76
2083-02-09.205	81899.205	-4.437	1.23 ± 0.003	1.67E6	4.34E-11	9.32E-12	-11.13
2100-02-09.390	88108.390	2.170	1.56 ± 0.000	4.80E5	1.54E-7	3.31E-8	-7.70
2100-02-09.399	88108.399	-0.084	0.12 ± 0.000	2.22E6	6.51E-7	1.40E-7	-7.08
2100-02-09.446	88108.446	-1.989	1.69 ± 0.001	3.70E5	2.06E-7	4.43E-8	-7.58
2100-02-09.457	88108.457	1.065	0.57 ± 0.000	9.80E4	8.00E-6	1.72E-6	-5.99
2100-02-09.519	88108.519	-0.835	0.56 ± 0.000	2.41E4	4.10E-5	8.81E-6	-5.28
2105-02-08.914	89933.914	-0.293	1.36 ± 0.011	3.47E6	2.72E-7	5.89E-8	-7.48
2105-02-09.157	89934.157	0.629	0.62 ± 0.000	6.17E4	1.81E-5	3.93E-6	-5.66
2106-02-09.544	90299.544	-3.751	1.54 ± 0.000	6.55E3	1.17E-7	2.51E-8	-7.86
2108-02-10.059	91030.059	-2.171	1.23 ± 0.000	1.91E4	5.63E-6	1.21E-6	-6.18
2110-02-09.804	91760.804	0.945	1.12 ± 0.000	2.97E4	2.50E-5	5.39E-6	-5.55
2110-02-09.839	91760.839	3.648	1.25 ± 0.000	2.49E5	5.47E-9	1.18E-9	-9.21
2110-02-09.914	91760.914	-0.939	1.22 ± 0.002	2.08E5	4.47E-6	9.64E-7	-6.29
2110-02-09.946	91760.946	0.248	1.04 ± 0.000	2.05E4	5.63E-5	1.21E-5	-5.19
2111-02-09.633	92125.633	-3.280	1.73 ± 0.000	4.08E4	4.76E-8	1.03E-8	-8.27
2116-02-09.555	93951.555	-3.236	1.14 ± 0.000	3.55E4	2.11E-7	4.57E-8	-7.65
2116-02-09.558	93951.558	-3.231	0.68 ± 0.000	2.90E4	2.50E-7	5.41E-8	-7.58
2116-02-09.604	93951.604	-3.242	0.81 ± 0.000	8.38E4	8.93E-8	1.94E-8	-8.02
2118-02-09.643	94682.643	-0.024	1.69 ± 0.022	5.76E6	9.21E-8	1.99E-8	-8.02
2118-02-09.731	94682.731	-0.004	0.77 ± 0.000	5.44E6	2.42E-7	5.22E-8	-7.60
2118-02-09.769	94682.769	-1.888	1.34 ± 0.000	2.50E5	8.96E-7	1.94E-7	-7.03
2120-02-10.213	95413.213	0.100	0.28 ± 0.000	1.21E6	1.17E-6	2.54E-7	-6.92
2120-02-10.284	95413.284	1.356	0.76 ± 0.000	2.05E4	2.55E-5	5.51E-6	-5.59
2123-02-09.865	96508.865	0.539	1.20 ± 0.000	2.30E6	4.85E-7	1.05E-7	-7.32


Based on 46 optical observations (of which 0 are rejected as outliers) from 2024/02/05.195 to 2024/05/14.206.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.82 and 1.82 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250305 082729.522 UTC.

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