Asteroids

2024JW16 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.510

Aphelion (Q)

3.501

Eccentricity (e)

0.746

Inclination (i)

5.4

deg

Orbit period (P)

1037.2

Earth MOID

0.00440

U parameter

9.0

Next Earth close approach

Date

2055-12-03

Nominal distance (from Earth center)

0.09521

14243203

Maximum Brightness

18.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

20.9

mag

Diameter

170 - 400*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2024-05-10

Observatory

ATLAS Chile, Rio Hurtado

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.005297

1-sigma variation

0.031307

Unit

Eccentricity (e)

Value

0.745821

1-sigma variation

0.004610

Unit

Inclination (i)

Value

5.3899

1-sigma variation

0.0240

Unit

Long. of Ascending Node (Ω)

Value

259.0284

1-sigma variation

0.0595

Unit

Arg. of Perihelion (ω)

Value

79.8434

1-sigma variation

0.1016

Unit

Mean Anomaly (M)

Value

175.83209

1-sigma variation

4.05676

Unit

Perihelion distance

Value

0.509704

1-sigma variation

Unit

Aphelion distance

Value

3.500890

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.230705

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040324

1-sigma variation

Unit

MOID

Value

0.004397

1-sigma variation

Unit

Orbit Period

Value

1037.2097

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.80136E-4	1.44332E-4	7.50199E-4	1.86174E-3	-3.18024E-3	-1.27005E-1
e	1.44332E-4	2.12539E-5	1.10473E-4	2.74152E-4	-4.68307E-4	-1.87024E-2
i	7.50199E-4	1.10473E-4	5.74249E-4	1.42482E-3	-2.43384E-3	-9.72102E-2
Ω	1.86174E-3	2.74152E-4	1.42482E-3	3.53695E-3	-6.04193E-3	-2.41243E-1
ω	-3.18024E-3	-4.68307E-4	-2.43384E-3	-6.04193E-3	1.03212E-2	4.12093E-1
M	-1.27005E-1	-1.87024E-2	-9.72102E-2	-2.41243E-1	4.12093E-1	1.64573E1

Date of computation: 2025-11-24 16:53 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

20.937

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

170 - 400*

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

665

Unit

Source

[1]

Normalized RMS of residuals

Value

0.513066

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-05-10.189719

Unit

Source

[2]

Last Observation

Value

2024-05-16.615334

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

37 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2024JW16 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1953-05-15 06:05	> 1 mo	0.1074360	0.0395181	15.3834577
EARTH	1970-05-28 00:28	> 1 mo	0.1225037	0.0391341	0.8949796
VENUS	1976-02-23 17:24	> 1 mo	0.0335215	0.0122361	5.2154172
EARTH	2001-12-02 07:09	> 1 mo	0.1030832	0.0064505	1.9584089
EARTH	2018-12-10 01:39	> 1 mo	0.0281611	0.0047466	0.8353420
EARTH	2024-05-16 20:36	< 1 min	0.0832920	0.0817609	0.0005104
EARTH	2055-12-03 14:13	> 1 mo	0.0952099	0.0006325	3.4541290
EARTH	2061-05-13 05:02	> 1 mo	0.1767005	0.0271943	2.8593448
EARTH	2078-06-02 22:16	> 1 mo	0.1950861	0.0271425	0.4560964
88 Thisbe	2086-03-29 04:43	> 1 w	0.0039309	0.0031307	0.2037938
VENUS	2087-02-21 10:28	> 1 mo	0.0448708	0.0435778	0.2528563
EARTH	2109-12-07 06:32	> 1 mo	0.0532058	0.0041289	6.2888409
EARTH	2115-05-17 00:39	> 1 mo	0.1354824	0.0213316	3.4806010
VENUS	2118-04-10 02:17	> 1 mo	0.0464709	0.0248701	2.0180170

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
47.01506450	335.47657188	0.00439731	MINIMUM
311.72473746	137.81031821	0.03173751	MINIMUM
358.73374765	235.81829867	0.50490088	SADDLE
358.64305411	55.54289554	1.49948215	SADDLE
179.82132382	57.21274364	2.51539034	SADDLE
179.76708580	237.18754585	4.50762102	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2024JW16

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2050-12-09.149	70149.149	4.683	0.000	0.89 ± 0.087	1.49E5	5.81E-11	2.25E3	-7.45
2062-12-09.675	74532.675	-4.480	0.000	0.76 ± 0.083	7.81E5	3.74E-11	9.25E2	-8.11
2082-12-07.783	81835.783	0.604	2.378	1.11 ± 0.092	8.52E6	6.10E-11	1.42E3	-7.93
2103-12-08.384	89505.384	0.904	0.000	0.29 ± 0.073	1.93E6	2.99E-7	1.43E3	-4.38
2106-12-08.161	90601.161	0.901	0.000	0.92 ± 0.084	5.49E6	1.07E-7	1.43E3	-4.84
2116-12-09.351	94255.351	1.437	0.000	0.84 ± 0.075	4.84E5	6.41E-7	1.56E3	-4.08
2116-12-09.360	94255.360	1.446	0.000	0.83 ± 0.079	2.92E5	9.24E-7	1.57E3	-3.92
2116-12-09.379	94255.379	1.456	2.644	1.10 ± 0.082	1.67E5	1.42E-9	1.54E3	-6.74
2116-12-09.385	94255.385	1.451	0.000	0.89 ± 0.087	1.67E6	1.06E-7	1.56E3	-4.87
2116-12-09.386	94255.386	1.452	0.000	0.96 ± 0.081	1.89E6	7.49E-8	1.56E3	-5.02
2121-12-07.671	96079.671	0.989	0.000	0.47 ± 0.089	1.02E7	4.79E-8	1.44E3	-5.26
2121-12-07.675	96079.675	0.980	0.000	1.00 ± 0.092	4.04E6	5.44E-8	1.43E3	-5.21


Based on 37 optical observations (of which 0 are rejected as outliers) from 2024/05/10.190 to 2024/05/16.615.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.11 and 1.11 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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