Asteroids

2024HY1 help

Last update: 2024-05-15 18:30 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.860

Aphelion (Q)

1.734

Eccentricity (e)

0.337

Inclination (i)

2.3

deg

Orbit period (P)

539.6

Earth MOID

0.00177

U parameter

7.3

Next Earth close approach

Date

2027-05-06

Nominal distance (from Earth center)

0.13149

19671224

Maximum Brightness

25.8

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

27.4

mag

Diameter

9 - 20*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-04-29

Observatory

Mt. Lemmon Survey

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.297179

1-sigma variation

0.000387

Unit

Eccentricity (e)

Value

0.336968

1-sigma variation

0.000242

Unit

Inclination (i)

Value

2.2649

1-sigma variation

0.0018

Unit

Long. of Ascending Node (Ω)

Value

37.7128

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

112.4340

1-sigma variation

0.0058

Unit

Mean Anomaly (M)

Value

16.99241

1-sigma variation

0.01518

Unit

Perihelion distance

Value

0.860071

1-sigma variation

Unit

Aphelion distance

Value

1.734286

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.328133

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.011691

1-sigma variation

Unit

MOID

Value

0.001775

1-sigma variation

Unit

Orbit Period

Value

539.6326

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.50010E-7	9.35932E-8	7.08602E-7	-2.35812E-7	2.23632E-6	-5.87938E-6
e	9.35932E-8	5.84000E-8	4.42091E-7	-1.46968E-7	1.39412E-6	-3.66808E-6
i	7.08602E-7	4.42091E-7	3.34747E-6	-1.11394E-6	1.05664E-5	-2.77729E-5
Ω	-2.35812E-7	-1.46968E-7	-1.11394E-6	3.76140E-7	-3.54734E-6	9.24618E-6
ω	2.23632E-6	1.39412E-6	1.05664E-5	-3.54734E-6	3.35651E-5	-8.76795E-5
M	-5.87938E-6	-3.66808E-6	-2.77729E-5	9.24618E-6	-8.76795E-5	2.30437E-4

Date of computation: 2024-05-07 11:58 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

27.395

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

9 - 20*

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 ODIM	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

0.438693

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-04-29.317326

Unit

Source

[2]

Last Observation

Value

2024-05-07.35495

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

54 (5)

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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2024HY1 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1956-05-09 01:22	394.6	0.1902663	0.1705738	0.0065649
EARTH	1959-04-20 07:18	> 1 w	0.0355619	0.0020530	0.0755526
EARTH	1962-02-04 09:22	> 1 mo	0.1267014	0.0678319	0.0215067
EARTH	1964-12-13 14:10	> 1 d	0.0907563	0.0301660	0.0870229
EARTH	1990-05-07 12:48	> 1 d	0.1520341	0.0004788	0.0583868
EARTH	1993-03-29 06:04	> 1 w	0.1012040	0.0102191	0.0411286
EARTH	1996-01-02 03:16	> 1 w	0.0705044	0.0301470	0.0588155
EARTH	2024-04-25 09:53	< 1 min	0.0029981	0.0029918	0.0000021
EARTH	2027-05-06 23:08	675.6	0.1314940	0.1075736	0.0079735
MARS	2028-05-06 15:21	26.3	0.0356218	0.0098363	0.0091843
EARTH	2073-12-14 18:20	> 1 d	0.1470658	0.0347911	0.0891725
EARTH	2076-12-25 13:34	> 1 w	0.0355265	0.0354698	0.0046253
EARTH	2080-01-24 11:18	> 1 mo	0.1054110	0.0394236	0.0829990
EARTH	2083-03-04 01:38	> 1 mo	0.1257985	0.0791206	0.0313898
EARTH	2086-04-11 12:57	> 1 mo	0.0711666	0.0030537	0.2444766
MARS	2088-01-14 19:09	> 1 d	0.0434181	0.0191347	0.2273965
EARTH	2089-04-29 10:57	> 1 w	0.0343559	0.0006038	0.2918902
EARTH	2092-05-10 20:43	> 1 w	0.1996580	0.0018461	0.1461643

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