Asteroids

2024JA2 help

Last update: 2024-05-18 23:53 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.496

Aphelion (Q)

3.675

Eccentricity (e)

0.762

Inclination (i)

12.6

deg

Orbit period (P)

1100.0

Earth MOID

0.00719

U parameter

8.0

Next Earth close approach

Date

2027-05-05

Nominal distance (from Earth center)

0.02096

3135666

Maximum Brightness

18.2

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-05-05

Observatory

Moonbase South Observatory, Hakos

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

2.085389

1-sigma variation

0.003558

Unit

Eccentricity (e)

Value

0.762374

1-sigma variation

0.000487

Unit

Inclination (i)

Value

12.6374

1-sigma variation

0.0097

Unit

Long. of Ascending Node (Ω)

Value

44.8323

1-sigma variation

1.017E-5

Unit

Arg. of Perihelion (ω)

Value

77.9510

1-sigma variation

0.0023

Unit

Mean Anomaly (M)

Value

4.44081

1-sigma variation

0.01737

Unit

Perihelion distance

Value

0.495543

1-sigma variation

Unit

Aphelion distance

Value

3.675236

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.236655

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.029674

1-sigma variation

Unit

MOID

Value

0.007191

1-sigma variation

Unit

Orbit Period

Value

1099.9658

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.26585E-5	1.73182E-6	3.44406E-5	-3.06187E-8	8.05852E-6	-6.18121E-5
e	1.73182E-6	2.36931E-7	4.71187E-6	-4.18802E-9	1.10246E-6	-8.45657E-6
i	3.44406E-5	4.71187E-6	9.37108E-5	-8.30105E-8	2.19205E-5	-1.68176E-4
Ω	-3.06187E-8	-4.18802E-9	-8.30105E-8	1.03409E-10	-1.97451E-8	1.49511E-7
ω	8.05852E-6	1.10246E-6	2.19205E-5	-1.97451E-8	5.13791E-6	-3.93501E-5
M	-6.18121E-5	-8.45657E-6	-1.68176E-4	1.49511E-7	-3.93501E-5	3.01833E-4

Date of computation: 2024-05-13 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

24.051

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

40 - 90*

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 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

0.700843

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-05-03.43948

Unit

Source

[2]

Last Observation

Value

2024-05-10.307438

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

65 (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

[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 2024JA2 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	1951-10-28 08:23	> 1 mo	0.1761143	0.0915664	5.9822645
EARTH	1954-10-26 02:44	> 1 mo	0.1541802	0.0902951	2.8689864
VENUS	1954-11-12 04:22	> 1 mo	0.0247991	0.0218405	1.9523860
EARTH	1957-10-25 03:33	> 1 mo	0.1440025	0.0887279	2.6117940
EARTH	1960-10-23 18:39	> 1 mo	0.1317448	0.0882498	2.2638495
EARTH	1963-10-25 23:13	> 1 mo	0.1400786	0.0850869	2.1780997
EARTH	1966-10-28 10:31	> 1 mo	0.1743377	0.0880385	2.0883833
VENUS	1976-01-14 15:24	> 1 mo	0.0417443	0.0397507	0.4642948
VENUS	2012-01-29 16:26	> 1 w	0.0300654	0.0298147	0.0234663
EARTH	2018-04-25 07:09	> 1 d	0.1490348	0.0061442	0.0869264
EARTH	2021-04-30 04:44	> 1 d	0.0661796	0.0064037	0.0476928
EARTH	2024-05-03 02:16	< 1 s	0.0085830	0.0085651	0.0000060
EARTH	2027-05-05 04:40	> 1 d	0.0209606	0.0066711	0.0451675
EARTH	2030-05-07 21:57	1336.5	0.0804643	0.0251253	0.0185831
EARTH	2033-05-10 17:21	881.2	0.1329016	0.0954039	0.0125003
EARTH	2036-05-12 08:42	> 1 d	0.1720844	0.0444116	0.0425686
EARTH	2078-05-14 01:39	> 1 d	0.1646442	0.0104835	0.1139696
EARTH	2081-05-11 23:49	> 1 d	0.1174506	0.0153648	0.0844623
EARTH	2084-05-07 00:04	> 1 d	0.0264600	0.0150259	0.0410201
EARTH	2087-05-04 15:47	794.8	0.0411214	0.0139938	0.0109848
EARTH	2090-04-29 23:11	> 1 d	0.1181960	0.0156756	0.0680283
EARTH	2093-04-25 14:43	> 1 w	0.1928334	0.0261715	0.1220324
EARTH	2122-10-25 19:25	> 1 mo	0.1690037	0.0670595	0.4899266

Download as: