Asteroids

2025DJ53 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.680

Aphelion (Q)

1.356

Eccentricity (e)

0.332

Inclination (i)

26.9

deg

Orbit period (P)

375.1

Earth MOID

0.06287

U parameter

1.9

Next Earth close approach

Date

2026-05-11

Nominal distance (from Earth center)

0.11959

17890703

Maximum Brightness

16.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.9

mag

Diameter

400 - 1000*

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

1.017931

1-sigma variation

7.023E-8

Unit

Eccentricity (e)

Value

0.332230

1-sigma variation

0.000001

Unit

Inclination (i)

Value

26.8890

1-sigma variation

3.215E-5

Unit

Long. of Ascending Node (Ω)

Value

45.5878

1-sigma variation

8.915E-6

Unit

Arg. of Perihelion (ω)

Value

300.9006

1-sigma variation

3.176E-5

Unit

Mean Anomaly (M)

Value

111.45536

1-sigma variation

0.00005

Unit

Perihelion distance

Value

0.679744

1-sigma variation

Unit

Aphelion distance

Value

1.356119

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.217334

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.081509

1-sigma variation

Unit

MOID

Value

0.062872

1-sigma variation

Unit

Orbit Period

Value

375.1251

1-sigma variation

Unit

U parameter

Value

1.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.93185E-15	-1.96824E-14	-6.41577E-13	-2.03219E-13	-1.56881E-12	-1.82724E-12
e	-1.96824E-14	3.72749E-13	1.58525E-11	3.26110E-12	1.58539E-11	3.02058E-11
i	-6.41577E-13	1.58525E-11	1.03392E-9	1.37109E-10	7.66217E-10	1.15404E-9
Ω	-2.03219E-13	3.26110E-12	1.37109E-10	7.94737E-11	1.48885E-10	2.17205E-10
ω	-1.56881E-12	1.58539E-11	7.66217E-10	1.48885E-10	1.00852E-9	1.13079E-9
M	-1.82724E-12	3.02058E-11	1.15404E-9	2.17205E-10	1.13079E-9	2.70963E-9

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

18.859

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

400 - 1000*

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

460

Unit

Source

[1]

Unobserved

Value

251

Unit

Source

[1]

Normalized RMS of residuals

Value

0.476286

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2024-02-10.643757

Unit

Source

[2]

Last Observation

Value

2025-05-15.182032

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

178 (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

Close Approaches for 2025DJ53 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	1951-11-18 21:57	3.4	0.1903797	0.1903720	0.0000026
EARTH	1985-05-06 14:57	< 1 min	0.1814857	0.1814698	0.0000053
EARTH	1986-05-10 09:19	< 1 min	0.0677562	0.0677488	0.0000025
EARTH	1987-05-11 20:45	< 1 min	0.1270998	0.1270813	0.0000062
EARTH	1994-11-20 09:03	1.6	0.1895157	0.1895141	0.0000005
EARTH	2025-05-09 22:11	< 1 s	0.0838671	0.0838668	0.0000001
EARTH	2026-05-11 20:33	< 1 min	0.1195920	0.1195904	0.0000005
EARTH	2062-05-08 04:20	< 1 min	0.1565521	0.1564985	0.0000179
EARTH	2063-05-11 17:12	< 1 min	0.0664216	0.0664083	0.0000044
EARTH	2064-05-10 19:05	< 1 min	0.1804518	0.1803970	0.0000183
EARTH	2070-11-20 12:56	3.9	0.1902188	0.1902155	0.0000011
EARTH	2101-05-11 06:58	1.0	0.0792902	0.0792250	0.0000218
EARTH	2102-05-13 00:05	< 1 min	0.1200822	0.1199900	0.0000307
EARTH	2109-11-23 12:34	5.1	0.1918157	0.1918070	0.0000029

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
262.88393340	127.92938242	0.06287177	MINIMUM
55.31702682	317.55879293	0.19009496	MINIMUM
340.88437800	219.96000640	0.50203204	SADDLE
157.75590154	50.42847288	0.61722466	SADDLE
349.89071509	54.11474454	1.63497307	SADDLE
185.35493051	251.34726553	2.31902247	MAXIMUM

Download:

MOID Plots

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