Asteroids

2025DJ22 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.750

Aphelion (Q)

1.549

Eccentricity (e)

0.348

Inclination (i)

14.2

deg

Orbit period (P)

449.9

Earth MOID

0.00315

U parameter

4.6

Next Earth close approach

Date

2031-09-01

Nominal distance (from Earth center)

0.01456

2178685

Maximum Brightness

19.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-27

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

1.149130

1-sigma variation

0.000005

Unit

Eccentricity (e)

Value

0.347543

1-sigma variation

0.000006

Unit

Inclination (i)

Value

14.1581

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

340.0982

1-sigma variation

3.454E-6

Unit

Arg. of Perihelion (ω)

Value

267.8389

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

163.03155

1-sigma variation

0.00086

Unit

Perihelion distance

Value

0.749758

1-sigma variation

Unit

Aphelion distance

Value

1.548502

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.014162

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.005579

1-sigma variation

Unit

MOID

Value

0.003150

1-sigma variation

Unit

Orbit Period

Value

449.9373

1-sigma variation

Unit

U parameter

Value

4.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.64041E-11	2.93471E-11	7.71931E-10	1.71371E-11	2.33701E-10	-4.42848E-9
e	2.93471E-11	3.31353E-11	8.75607E-10	1.93381E-11	3.31724E-10	-4.92569E-9
i	7.71931E-10	8.75607E-10	2.34154E-8	5.10565E-10	9.28359E-9	-1.29589E-7
Ω	1.71371E-11	1.93381E-11	5.10565E-10	1.19308E-11	1.91823E-10	-2.87647E-9
ω	2.33701E-10	3.31724E-10	9.28359E-9	1.91823E-10	1.20836E-8	-3.96987E-8
M	-4.42848E-9	-4.92569E-9	-1.29589E-7	-2.87647E-9	-3.96987E-8	7.42769E-7

Date of computation: 2025-09-10 00:30 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

27.009

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

11 - 24*

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

199

Unit

Source

[1]

Normalized RMS of residuals

Value

0.821701

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-26.321405

Unit

Source

[2]

Last Observation

Value

2025-03-01.047376

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

55 (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

2025-03-01

Unit

Source

[3]

Last Observation

Value

2025-03-01

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

3 (0)

Unit

Source

[1]

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
[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 2025DJ22 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1958-03-02 00:42	> 1 w	0.0094148	0.0026296	0.1585636
EARTH	1963-02-21 22:31	> 1 d	0.1726687	0.0021574	0.1266566
EARTH	1969-09-07 13:52	> 1 d	0.1771914	0.0124073	0.0617598
EARTH	1974-08-30 21:16	631.8	0.0159443	0.0156031	0.0019461
EARTH	1979-08-21 05:48	477.1	0.1984450	0.1751959	0.0077497
EARTH	1994-03-12 08:21	155.4	0.1780322	0.1727938	0.0017462
EARTH	1999-03-01 05:22	31.8	0.0174981	0.0161806	0.0004400
EARTH	2010-08-28 15:47	38.2	0.0625224	0.0608412	0.0005607
EARTH	2025-03-01 10:58	< 1 s	0.0037326	0.0037325	0.0000000
EARTH	2031-09-01 01:13	18.4	0.0145636	0.0138826	0.0002292
EARTH	2041-02-23 16:32	41.4	0.1217790	0.1198627	0.0006388
EARTH	2052-03-04 09:07	95.0	0.0698670	0.0659102	0.0013190
EARTH	2058-08-25 14:46	75.8	0.1355264	0.1324185	0.0010360
EARTH	2069-09-02 12:24	23.6	0.0268008	0.0259327	0.0002898
EARTH	2079-02-25 09:10	93.5	0.1021549	0.0977194	0.0014785
EARTH	2090-03-11 14:01	231.4	0.1756449	0.1670226	0.0028742
EARTH	2096-09-02 13:42	225.8	0.0300066	0.0201216	0.0033233
EARTH	2106-03-03 09:29	467.9	0.0091505	0.0059125	0.0049769
EARTH	2112-09-05 17:22	222.6	0.0839773	0.0760747	0.0026376

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
292.98941056	57.73840746	0.00345202	MINIMUM
70.15374337	237.06514918	0.00854590	MINIMUM
1.90301111	147.76665193	0.34034205	SADDLE
181.16696015	326.81585035	0.63962442	SADDLE
1.80102363	327.63193194	1.72300726	SADDLE
180.82571476	146.58245699	2.54364260	MAXIMUM

Download:

MOID Plots

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