Asteroids

2024HR help

Last update: 2025-03-17 23:53 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.040

Aphelion (Q)

1.649

Eccentricity (e)

0.227

Inclination (i)

32.8

deg

Orbit period (P)

569.3

Earth MOID

0.04862

U parameter

8.0

Next Earth close approach

Date

2038-04-27

Nominal distance (from Earth center)

0.18762

28068010

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.5

mag

Diameter

30 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-04-18

Observatory

Catalina Sky 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

1.344322

1-sigma variation

0.001190

Unit

Eccentricity (e)

Value

0.226694

1-sigma variation

0.000644

Unit

Inclination (i)

Value

32.7584

1-sigma variation

0.0312

Unit

Long. of Ascending Node (Ω)

Value

30.0054

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

202.1329

1-sigma variation

0.0279

Unit

Mean Anomaly (M)

Value

226.45051

1-sigma variation

0.28085

Unit

Perihelion distance

Value

1.039572

1-sigma variation

Unit

Aphelion distance

Value

1.649073

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.619451

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.049211

1-sigma variation

Unit

MOID

Value

0.048624

1-sigma variation

Unit

Orbit Period

Value

569.3162

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.41617E-6	7.65826E-7	3.70874E-5	-3.17129E-7	-3.29917E-5	-3.34208E-4
e	7.65826E-7	4.14153E-7	2.00550E-5	-1.71474E-7	-1.78274E-5	-1.80739E-4
i	3.70874E-5	2.00550E-5	9.71373E-4	-8.30729E-6	-8.64719E-4	-8.75200E-3
Ω	-3.17129E-7	-1.71474E-7	-8.30729E-6	7.10783E-8	7.40568E-6	7.48301E-5
ω	-3.29917E-5	-1.78274E-5	-8.64719E-4	7.40568E-6	7.80799E-4	7.77857E-3
M	-3.34208E-4	-1.80739E-4	-8.75200E-3	7.48301E-5	7.77857E-3	7.88756E-2

Date of computation: 2025-02-19 13:28 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

24.462

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

30 - 80*

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

332

Unit

Source

[1]

Normalized RMS of residuals

Value

0.734112

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-04-18.324049

Unit

Source

[2]

Last Observation

Value

2024-04-20.92965

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

45 (2)

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 2024HR 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	1957-04-16 10:19	> 1 w	0.1285895	0.0462164	0.5806282
EARTH	1971-04-22 02:53	> 1 w	0.0548560	0.0484308	0.1597048
EARTH	2010-04-15 05:56	> 1 d	0.1710082	0.0442166	0.1098834
EARTH	2024-04-20 20:03	< 1 min	0.0488886	0.0487302	0.0000528
EARTH	2038-04-27 13:01	> 1 d	0.1876231	0.0429775	0.1112656
EARTH	2063-04-15 09:44	> 1 w	0.1770948	0.0439135	0.2757555
EARTH	2077-04-21 03:57	> 1 w	0.0485943	0.0484580	0.0251270
EARTH	2091-04-28 01:03	> 1 w	0.1900645	0.0426902	0.8608040
EARTH	2116-04-16 01:59	> 1 mo	0.1702904	0.0443317	1.5663879

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
343.00012166	107.89734576	0.04842285	MINIMUM
124.66613008	269.05240794	0.58080237	MINIMUM
69.06704906	215.09372343	0.65008342	SADDLE
233.36049975	349.90268380	0.82743928	SADDLE
21.98953710	332.31993279	2.00025498	SADDLE
173.93456042	123.29595607	2.64800811	MAXIMUM

Download:

MOID Plots

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