Asteroids

2025DQ help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.800

Aphelion (Q)

1.198

Eccentricity (e)

0.199

Inclination (i)

2.4

deg

Orbit period (P)

364.8

Earth MOID

0.00170

U parameter

4.7

Next Earth close approach

Date

2026-02-21

Nominal distance (from Earth center)

0.00775

1159154

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

29.9

mag

Diameter

2.8 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-18

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.999125

1-sigma variation

0.000004

Unit

Eccentricity (e)

Value

0.199072

1-sigma variation

0.000069

Unit

Inclination (i)

Value

2.4320

1-sigma variation

0.0015

Unit

Long. of Ascending Node (Ω)

Value

330.4878

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

281.2573

1-sigma variation

0.0036

Unit

Mean Anomaly (M)

Value

192.83019

1-sigma variation

0.00232

Unit

Perihelion distance

Value

0.800227

1-sigma variation

Unit

Aphelion distance

Value

1.198023

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.088272

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.008858

1-sigma variation

Unit

MOID

Value

0.001700

1-sigma variation

Unit

Orbit Period

Value

364.7777

1-sigma variation

Unit

U parameter

Value

4.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.64954E-11	2.69875E-10	5.64335E-9	2.55469E-9	1.34539E-8	8.85864E-9
e	2.69875E-10	4.82020E-9	1.02000E-7	4.59724E-8	2.47395E-7	1.60747E-7
i	5.64335E-9	1.02000E-7	2.16266E-6	9.74030E-7	5.25441E-6	3.40816E-6
Ω	2.55469E-9	4.59724E-8	9.74030E-7	4.38846E-7	2.36496E-6	1.53502E-6
ω	1.34539E-8	2.47395E-7	5.25441E-6	2.36496E-6	1.28115E-5	8.29077E-6
M	8.85864E-9	1.60747E-7	3.40816E-6	1.53502E-6	8.29077E-6	5.37525E-6

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

29.906

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

2.8 - 6*

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

323

Unit

Source

[1]

Normalized RMS of residuals

Value

0.90241

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-18.375102

Unit

Source

[2]

Last Observation

Value

2025-02-20.933484

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (4)

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 2025DQ 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	1974-09-29 03:06	274.5	0.1376561	0.1267260	0.0036488
EARTH	1975-09-24 00:45	192.6	0.0267957	0.0267342	0.0000951
EARTH	1976-08-23 17:49	369.4	0.1421232	0.1418727	0.0000840
EARTH	1976-10-15 23:08	39.2	0.1377063	0.1373711	0.0001119
EARTH	1977-11-20 21:28	1111.7	0.1934037	0.1928424	0.0001871
EARTH	1978-12-17 22:46	> 1 d	0.1992226	0.1981766	0.0003489
EARTH	1980-01-16 07:01	> 1 d	0.1615554	0.1557861	0.0019251
EARTH	1980-04-13 10:58	> 1 d	0.1771365	0.1712371	0.0019678
EARTH	1981-02-21 08:03	261.1	0.0539651	0.0378301	0.0053789
EARTH	1982-02-19 04:36	261.9	0.0806924	0.0631478	0.0058483
EARTH	2017-09-29 23:03	47.5	0.1630051	0.1600912	0.0009716
EARTH	2018-09-24 16:00	50.0	0.0343479	0.0327283	0.0005638
EARTH	2019-09-29 19:57	312.5	0.1104492	0.1081193	0.0007769
EARTH	2020-07-23 12:51	681.6	0.1921798	0.1912639	0.0003055
EARTH	2020-11-11 13:21	479.5	0.1830730	0.1822544	0.0002729
EARTH	2023-01-01 18:52	231.8	0.1858490	0.1858161	0.0000110
EARTH	2024-02-04 03:01	104.2	0.1239080	0.1237001	0.0000693
EARTH	2025-02-21 17:49	< 1 min	0.0020003	0.0019982	0.0000007
EARTH	2026-02-21 17:52	1.7	0.0077485	0.0076387	0.0000366
EARTH	2027-02-19 11:32	8.3	0.0846075	0.0840223	0.0001951
EARTH	2028-02-16 14:43	17.3	0.1670272	0.1658011	0.0004087
EARTH	2085-09-28 17:19	848.6	0.1742011	0.1173116	0.0190332
EARTH	2086-09-25 16:02	956.9	0.0929640	0.0378167	0.0191736
EARTH	2087-09-22 21:47	882.5	0.0240160	0.0204040	0.0099693
EARTH	2088-09-20 08:43	307.3	0.0533752	0.0202458	0.0208402
EARTH	2089-10-03 06:11	> 1 w	0.1174997	0.0572696	0.0202449
EARTH	2090-08-04 11:50	> 1 w	0.1689628	0.1324096	0.0123977
EARTH	2090-10-27 11:18	> 1 w	0.1633837	0.1275724	0.0119548
EARTH	2091-07-16 18:03	> 1 w	0.1974519	0.1749607	0.0075799
EARTH	2091-11-12 22:51	> 1 w	0.1905407	0.1698843	0.0069031
EARTH	2096-01-04 11:06	> 1 w	0.1874418	0.1654486	0.0074037
EARTH	2096-05-01 01:54	> 1 w	0.1981669	0.1761566	0.0073408
EARTH	2097-01-19 09:41	> 1 w	0.1588206	0.1224630	0.0122382
EARTH	2097-04-12 02:44	> 1 w	0.1696858	0.1328183	0.0123149
EARTH	2098-02-10 03:54	> 1 w	0.1124895	0.0539263	0.0197254
EARTH	2099-02-23 03:13	479.0	0.0477625	0.0041943	0.0219377
EARTH	2100-02-22 14:03	617.3	0.0124952	0.0029938	0.0157342
EARTH	2101-02-19 09:28	> 1 d	0.1151885	0.0041440	0.0388847

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
272.56616441	50.71006628	0.00170041	MINIMUM
90.97810180	253.81296835	0.01741670	MINIMUM
181.37940591	331.96511834	0.21713153	SADDLE
2.29878164	152.69007117	0.21903790	SADDLE
2.64886738	333.14482192	1.78541043	SADDLE
181.96689631	152.45127514	2.21357844	MAXIMUM

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MOID Plots

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