Asteroids

2025QJ17 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.026

Aphelion (Q)

1.752

Eccentricity (e)

0.261

Inclination (i)

7.7

deg

Orbit period (P)

597.7

Earth MOID

0.02513

U parameter

7.4

Next Earth close approach

Date

2043-09-11

Nominal distance (from Earth center)

0.04514

6752592

Maximum Brightness

20.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.5

mag

Diameter

21 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-08-28

Observatory

Mt. Lemmon 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.388637

1-sigma variation

0.000513

Unit

Eccentricity (e)

Value

0.261388

1-sigma variation

0.000258

Unit

Inclination (i)

Value

7.7314

1-sigma variation

0.0058

Unit

Long. of Ascending Node (Ω)

Value

173.0232

1-sigma variation

0.0017

Unit

Arg. of Perihelion (ω)

Value

193.7610

1-sigma variation

0.0045

Unit

Mean Anomaly (M)

Value

153.64708

1-sigma variation

0.08206

Unit

Perihelion distance

Value

1.025664

1-sigma variation

Unit

Aphelion distance

Value

1.751609

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.740168

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.025783

1-sigma variation

Unit

MOID

Value

0.025127

1-sigma variation

Unit

Orbit Period

Value

597.6973

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.62768E-7	1.32124E-7	2.96701E-6	8.63006E-7	-2.28097E-6	-4.20643E-5
e	1.32124E-7	6.64338E-8	1.49186E-6	4.33932E-7	-1.14691E-6	-2.11506E-5
i	2.96701E-6	1.49186E-6	3.35019E-5	9.74525E-6	-2.57543E-5	-4.74965E-4
Ω	8.63006E-7	4.33932E-7	9.74525E-6	2.83678E-6	-7.48841E-6	-1.38154E-4
ω	-2.28097E-6	-1.14691E-6	-2.57543E-5	-7.48841E-6	1.98048E-5	3.65138E-4
M	-4.20643E-5	-2.11506E-5	-4.74965E-4	-1.38154E-4	3.65138E-4	6.73373E-3

Date of computation: 2026-03-17 23:26 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

25.526

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

21 - 50*

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

199

Unit

Source

[1]

Normalized RMS of residuals

Value

0.473035

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-28.227828

Unit

Source

[2]

Last Observation

Value

2025-10-02.623546

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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 2025QJ17 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	1961-09-11 23:19	> 1 w	0.0403283	0.0215583	0.1256134
EARTH	1984-09-06 21:04	> 1 w	0.0664205	0.0143050	0.0709309
EARTH	2002-10-17 00:02	> 1 d	0.1538047	0.0327627	0.0713055
EARTH	2025-09-11 14:29	< 1 min	0.0434212	0.0433133	0.0000360
EARTH	2043-09-11 19:25	> 1 w	0.0451383	0.0209335	0.0471493
EARTH	2074-09-28 06:33	> 1 w	0.0531364	0.0150466	0.0950767
EARTH	2092-09-19 20:39	> 1 w	0.0274811	0.0255518	0.0149779
EARTH	2110-10-09 02:00	> 1 mo	0.0956432	0.0086554	0.8032005

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
351.03144614	254.68701937	0.02527827	MINIMUM
179.05857665	84.07913111	0.75355699	SADDLE
356.80943332	82.17783591	2.02443851	SADDLE
177.65344829	263.01138526	2.75372443	MAXIMUM

Download:

MOID Plots

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