Asteroids

2025DN1 help

Last update: 2025-02-23 10:01 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.958

Aphelion (Q)

1.324

Eccentricity (e)

0.160

Inclination (i)

35.2

deg

Orbit period (P)

445.0

Earth MOID

0.08022

U parameter

9.0

Next Earth close approach

Date

2035-08-25

Nominal distance (from Earth center)

0.17362

25973587

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

24.3

mag

Diameter

40 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-20

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.140739

1-sigma variation

0.004224

Unit

Eccentricity (e)

Value

0.160255

1-sigma variation

0.001032

Unit

Inclination (i)

Value

35.1903

1-sigma variation

0.2513

Unit

Long. of Ascending Node (Ω)

Value

153.0591

1-sigma variation

0.0016

Unit

Arg. of Perihelion (ω)

Value

263.9876

1-sigma variation

0.9205

Unit

Mean Anomaly (M)

Value

135.78924

1-sigma variation

1.35449

Unit

Perihelion distance

Value

0.957930

1-sigma variation

Unit

Aphelion distance

Value

1.323549

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.140906

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.082981

1-sigma variation

Unit

MOID

Value

0.080221

1-sigma variation

Unit

Orbit Period

Value

445.0184

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.78459E-5	4.23047E-6	1.06138E-3	-6.80576E-6	3.88791E-3	-5.72164E-3
e	4.23047E-6	1.06404E-6	2.50160E-4	-1.60219E-6	9.18000E-4	-1.35978E-3
i	1.06138E-3	2.50160E-4	6.31621E-2	-4.05060E-4	2.31316E-1	-3.40209E-1
Ω	-6.80576E-6	-1.60219E-6	-4.05060E-4	2.59797E-6	-1.48335E-3	2.18137E-3
ω	3.88791E-3	9.18000E-4	2.31316E-1	-1.48335E-3	8.47240E-1	-1.24631E0
M	-5.72164E-3	-1.35978E-3	-3.40209E-1	2.18137E-3	-1.24631E0	1.83463E0

Date of computation: 2025-02-21 22:00 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

24.258

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

40 - 80*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.803163

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-20.258324

Unit

Source

[2]

Last Observation

Value

2025-02-21.89356

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

21 (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 2025DN1 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	1957-08-28 06:17	> 1 mo	0.0845847	0.0793574	0.5891670
EARTH	1958-02-18 22:44	> 1 d	0.1411183	0.1365096	0.4429731
EARTH	1968-08-23 17:37	> 1 mo	0.1938473	0.0802001	1.5062601
EARTH	1985-08-30 00:25	> 1 w	0.1630517	0.0829124	1.0356162
EARTH	1986-02-19 13:34	> 1 w	0.1544977	0.1372678	0.5487259
EARTH	1996-08-26 13:15	> 1 w	0.0972214	0.0792189	0.4978330
EARTH	1997-02-18 20:12	> 1 d	0.1797843	0.1400509	0.5302838
EARTH	2024-08-28 13:23	138.5	0.0932500	0.0918335	0.0006185
EARTH	2025-02-18 23:24	7.8	0.1372267	0.1343308	0.0009653
EARTH	2035-08-25 05:39	> 1 w	0.1736227	0.0829116	0.3044718
EARTH	2052-08-30 05:03	> 1 w	0.1825115	0.0822193	0.7420347
EARTH	2053-02-19 17:21	> 1 w	0.1649138	0.1376154	0.4630344
EARTH	2063-08-27 22:20	> 1 w	0.0872066	0.0796236	0.4363935
EARTH	2064-02-19 19:04	> 1 d	0.1680763	0.1387763	0.6178171
EARTH	2091-08-29 19:48	> 1 mo	0.1048360	0.0798484	1.2949172
EARTH	2092-02-19 23:57	> 1 w	0.1357198	0.1356133	0.0108451
EARTH	2102-08-26 17:05	> 1 mo	0.1545658	0.0808962	2.1109322
EARTH	2119-09-01 08:38	> 1 w	0.1996849	0.0844314	2.5311526
EARTH	2120-02-21 21:17	> 1 w	0.1753301	0.1381508	1.7291537

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
286.97459437	233.09220300	0.08022129	MINIMUM
83.26652741	47.34989723	0.13554244	MINIMUM
5.05885687	321.48186994	0.58878082	SADDLE
185.64974780	138.77844953	0.76510947	SADDLE
1.23752785	136.09650650	1.87817217	SADDLE
144.09725461	277.51473696	2.22211498	MAXIMUM

Download:

MOID Plots

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