Asteroids

2025DK1 help

Last update: 2025-02-23 14:31 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.785

Aphelion (Q)

3.216

Eccentricity (e)

0.608

Inclination (i)

1.7

deg

Orbit period (P)

1033.2

Earth MOID

0.00096

U parameter

6.7

Next Earth close approach

Date

2039-07-09

Nominal distance (from Earth center)

0.04472

6690674

Maximum Brightness

26.2

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

30.1

mag

Diameter

2.5 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-20

Observatory

GINOP-KHK, Piszkesteto

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.000177

1-sigma variation

0.000462

Unit

Eccentricity (e)

Value

0.607642

1-sigma variation

0.000102

Unit

Inclination (i)

Value

1.6626

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

335.1000

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

241.2774

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

10.68078

1-sigma variation

0.00297

Unit

Perihelion distance

Value

0.784785

1-sigma variation

Unit

Aphelion distance

Value

3.215569

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.774566

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.014116

1-sigma variation

Unit

MOID

Value

0.000956

1-sigma variation

Unit

Orbit Period

Value

1033.2398

1-sigma variation

Unit

U parameter

Value

6.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.13483E-7	4.71456E-8	5.36113E-8	2.52259E-8	8.80310E-8	-1.37335E-6
e	4.71456E-8	1.04130E-8	1.20481E-8	5.20329E-9	2.02030E-8	-3.03336E-7
i	5.36113E-8	1.20481E-8	4.95038E-8	-5.69465E-8	1.46111E-7	-3.51741E-7
Ω	2.52259E-8	5.20329E-9	-5.69465E-8	1.14346E-7	-2.07934E-7	-1.50210E-7
ω	8.80310E-8	2.02030E-8	1.46111E-7	-2.07934E-7	4.77031E-7	-5.91525E-7
M	-1.37335E-6	-3.03336E-7	-3.51741E-7	-1.50210E-7	-5.91525E-7	8.83640E-6

Date of computation: 2025-02-21 19:30 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

30.123

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

2.5 - 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

[-]

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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

0.8

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.682235

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-20.969999

Unit

Source

[2]

Last Observation

Value

2025-02-21.751776

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (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 2025DK1 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	1958-06-20 07:32	> 1 w	0.1302426	0.0182550	0.1119186
EARTH	1961-02-28 18:38	> 1 w	0.1015429	0.0055672	0.1235758
EARTH	1987-07-02 09:42	> 1 d	0.0405462	0.0179014	0.0458964
EARTH	1990-03-23 01:13	> 1 w	0.1810686	0.0930960	0.0293883
MARS	2016-09-22 13:10	1178.2	0.0374053	0.0330524	0.0075394
EARTH	2019-07-16 05:37	1016.2	0.1742992	0.1367357	0.0125377
EARTH	2025-02-22 01:04	< 1 min	0.0010064	0.0010060	0.0000001
MARS	2036-04-09 07:21	> 1 d	0.0287681	0.0082716	0.0173950
EARTH	2039-07-09 20:49	> 1 d	0.0447244	0.0225441	0.0236046
EARTH	2073-03-31 04:45	> 1 w	0.1905686	0.1183430	0.0241246
EARTH	2090-03-28 07:17	> 1 w	0.1805545	0.0799518	0.0336116
EARTH	2107-03-20 17:00	> 1 w	0.1624606	0.0450412	0.0392003
EARTH	2121-07-21 16:55	> 1 d	0.1982242	0.0994127	0.0331050
EARTH	2124-02-21 03:08	> 1 d	0.0336175	0.0014132	0.0260303

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
326.26096821	50.33393134	0.00095635	MINIMUM
36.00485263	180.84151246	0.02335094	MINIMUM
1.52571015	116.14582502	0.22320689	SADDLE
1.40592431	295.91657547	1.77759519	SADDLE
180.35536592	294.57371599	2.22290654	SADDLE
180.34196789	114.57069807	4.22191925	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2025DK1

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS	TS
2073-02-22.309	78260.309	-1.418	0.000	1.12 ± 0.003	1.40E5	1.10E-6	2.42E-9	-8.24	0


Based on 32 optical observations (of which 0 are rejected as outliers) from 2025/02/20.970 to 2025/02/21.752.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.24 and 1.24 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250222 170356.206 UTC.

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Download Impactor Table as: