Asteroids

2025DR1 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.955

Aphelion (Q)

1.657

Eccentricity (e)

0.269

Inclination (i)

3.4

deg

Orbit period (P)

545.3

Earth MOID

0.01061

U parameter

7.2

Next Earth close approach

Date

2025-02-25

Nominal distance (from Earth center)

0.01861

2783344

Maximum Brightness

20.7

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

27.2

mag

Diameter

9 - 21*

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

1.306291

1-sigma variation

0.000327

Unit

Eccentricity (e)

Value

0.268751

1-sigma variation

0.000203

Unit

Inclination (i)

Value

3.4418

1-sigma variation

0.0022

Unit

Long. of Ascending Node (Ω)

Value

330.0664

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

225.2978

1-sigma variation

0.0075

Unit

Mean Anomaly (M)

Value

23.60255

1-sigma variation

0.00884

Unit

Perihelion distance

Value

0.955224

1-sigma variation

Unit

Aphelion distance

Value

1.657359

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.483994

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.030238

1-sigma variation

Unit

MOID

Value

0.010611

1-sigma variation

Unit

Orbit Period

Value

545.3289

1-sigma variation

Unit

U parameter

Value

7.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.07068E-7	6.62684E-8	7.15679E-7	1.64949E-7	7.72404E-7	-2.65135E-6
e	6.62684E-8	4.12274E-8	4.43200E-7	1.01081E-7	5.81682E-7	-1.69259E-6
i	7.15679E-7	4.43200E-7	4.78946E-6	1.10561E-6	5.27916E-6	-1.77826E-5
Ω	1.64949E-7	1.01081E-7	1.10561E-6	2.62807E-7	6.91062E-7	-3.83828E-6
ω	7.72404E-7	5.81682E-7	5.27916E-6	6.91062E-7	5.63268E-5	-4.43903E-5
M	-2.65135E-6	-1.69259E-6	-1.77826E-5	-3.83828E-6	-4.43903E-5	7.82317E-5

Date of computation: 2025-02-22 11:58 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

27.244

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

9 - 21*

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

0.560291

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-20.345503

Unit

Source

[2]

Last Observation

Value

2025-02-22.22792

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

22 (1)

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 2025DR1 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	1951-06-01 20:13	> 1 d	0.1257616	0.0624850	0.0700115
EARTH	2019-02-15 02:35	148.0	0.1162211	0.1112403	0.0016604
EARTH	2022-02-23 03:15	1319.6	0.0334348	0.0155191	0.0063459
EARTH	2025-02-25 11:18	< 1 min	0.0186055	0.0185683	0.0000124
EARTH	2028-02-16 04:04	715.2	0.1063982	0.0853202	0.0070292
EARTH	2089-06-09 03:37	> 1 d	0.1813129	0.0617155	0.0742954
EARTH	2092-05-30 15:35	> 1 w	0.0884145	0.0613239	0.0507712
EARTH	2095-05-14 09:35	> 1 w	0.0614708	0.0607961	0.0063163
EARTH	2098-04-08 01:56	> 1 mo	0.0642730	0.0457287	0.0126019
EARTH	2101-03-09 18:28	> 1 w	0.0297893	0.0100408	0.0378107
EARTH	2104-03-01 12:38	> 1 d	0.0121312	0.0121130	0.0006163
EARTH	2107-02-22 15:35	> 1 w	0.0496860	0.0107357	0.2366438
EARTH	2110-02-14 00:20	> 1 w	0.1485784	0.0067638	0.2603296

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
332.45926862	56.54930498	0.01061081	MINIMUM
31.56847226	133.28556450	0.06066513	MINIMUM
11.43521937	107.17778952	0.06671393	SADDLE
182.56477834	275.58726301	0.66111238	SADDLE
3.66684759	276.93696233	1.95315811	SADDLE
181.87948047	95.06890260	2.65777939	MAXIMUM

Download:

MOID Plots

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