Asteroids

2025CA2 help

Last update: 2025-02-22 05:33 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.918

Aphelion (Q)

1.477

Eccentricity (e)

0.233

Inclination (i)

5.3

deg

Orbit period (P)

478.6

Earth MOID

0.01856

U parameter

7.6

Next Earth close approach

Date

2042-04-23

Nominal distance (from Earth center)

0.12076

18065654

Maximum Brightness

27.3

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-05

Observatory

Pan-STARRS 2, Haleakala

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

1.197511

1-sigma variation

0.000481

Unit

Eccentricity (e)

Value

0.233485

1-sigma variation

0.000382

Unit

Inclination (i)

Value

5.2565

1-sigma variation

0.0075

Unit

Long. of Ascending Node (Ω)

Value

321.5164

1-sigma variation

0.0025

Unit

Arg. of Perihelion (ω)

Value

245.2241

1-sigma variation

0.0063

Unit

Mean Anomaly (M)

Value

21.31979

1-sigma variation

0.00497

Unit

Perihelion distance

Value

0.917911

1-sigma variation

Unit

Aphelion distance

Value

1.477112

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.242726

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.043954

1-sigma variation

Unit

MOID

Value

0.018560

1-sigma variation

Unit

Orbit Period

Value

478.6497

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.31331E-7	1.83414E-7	3.59538E-6	1.18466E-6	-7.22391E-7	-1.97510E-6
e	1.83414E-7	1.45875E-7	2.85861E-6	9.41060E-7	-4.42599E-7	-1.62565E-6
i	3.59538E-6	2.85861E-6	5.60239E-5	1.84423E-5	-8.93373E-6	-3.17488E-5
Ω	1.18466E-6	9.41060E-7	1.84423E-5	6.07472E-6	-3.18630E-6	-1.03505E-5
ω	-7.22391E-7	-4.42599E-7	-8.93373E-6	-3.18630E-6	3.96868E-5	-1.09933E-5
M	-1.97510E-6	-1.62565E-6	-3.17488E-5	-1.03505E-5	-1.09933E-5	2.47322E-5

Date of computation: 2025-02-19 15:19 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

26.028

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

17 - 40*

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

0.703123

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-05.431885

Unit

Source

[2]

Last Observation

Value

2025-02-09.44233

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 2025CA2 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	1954-07-02 09:29	> 1 d	0.1360266	0.0773610	0.0398892
EARTH	1958-02-23 20:02	> 1 w	0.0292618	0.0167662	0.0581910
EARTH	1975-07-03 03:00	578.6	0.1476296	0.1093516	0.0135398
EARTH	1979-03-16 14:51	> 1 w	0.0881573	0.0196377	0.0229817
EARTH	2000-06-10 03:33	> 1 w	0.0986532	0.0712829	0.0481098
EARTH	2004-02-14 01:02	> 1 d	0.0956636	0.0154687	0.0950299
EARTH	2021-06-24 15:08	> 1 d	0.0739675	0.0738860	0.0005777
EARTH	2025-02-18 04:32	< 1 min	0.0340919	0.0339435	0.0000495
EARTH	2042-04-23 22:48	> 1 mo	0.1207614	0.1120441	0.0052649
EARTH	2059-06-29 14:51	> 1 d	0.0878540	0.0720514	0.0463192
EARTH	2063-02-19 00:40	> 1 w	0.0337122	0.0189530	0.0697381
EARTH	2076-07-03 12:59	> 1 w	0.1368998	0.0688629	0.2006982
EARTH	2080-02-20 21:33	> 1 w	0.0226914	0.0196374	0.1488864
EARTH	2093-06-19 08:59	> 1 mo	0.0869486	0.0681780	1.2565805
EARTH	2110-02-26 11:49	> 1 mo	0.0363630	0.0192486	4.2091220
EARTH	2123-07-05 07:35	> 1 mo	0.1269727	0.0718884	1.4214265

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
315.68002674	49.11010121	0.01856027	MINIMUM
54.62508271	170.93917893	0.07297617	MINIMUM
9.59997611	115.69236347	0.12127287	SADDLE
183.88122795	288.08605598	0.49255388	SADDLE
4.33602442	288.96924041	1.91133860	SADDLE
182.25071415	106.80635435	2.47925567	MAXIMUM

Download:

MOID Plots

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