Asteroids

2025VC4 help

Last update: 2025-11-19 13:08 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.811

Aphelion (Q)

1.355

Eccentricity (e)

0.251

Inclination (i)

13.3

deg

Orbit period (P)

411.9

Earth MOID

0.00745

U parameter

6.8

Next Earth close approach

Date

2027-05-18

Nominal distance (from Earth center)

0.11959

17889965

Maximum Brightness

25.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.1

mag

Diameter

10 - 22*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-11-14

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

1.083353

1-sigma variation

0.000119

Unit

Eccentricity (e)

Value

0.251107

1-sigma variation

0.000131

Unit

Inclination (i)

Value

13.3060

1-sigma variation

0.0070

Unit

Long. of Ascending Node (Ω)

Value

53.5388

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

88.1878

1-sigma variation

0.0060

Unit

Mean Anomaly (M)

Value

304.77089

1-sigma variation

0.01889

Unit

Perihelion distance

Value

0.811315

1-sigma variation

Unit

Aphelion distance

Value

1.355391

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.018038

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.010795

1-sigma variation

Unit

MOID

Value

0.007451

1-sigma variation

Unit

Orbit Period

Value

411.8636

1-sigma variation

Unit

U parameter

Value

6.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.40660E-8	1.54814E-8	8.35304E-7	2.33716E-8	-7.13297E-7	2.24072E-6
e	1.54814E-8	1.70412E-8	9.19404E-7	2.57282E-8	-7.84797E-7	2.46617E-6
i	8.35304E-7	9.19404E-7	4.96067E-5	1.38802E-6	-4.23524E-5	1.33064E-4
Ω	2.33716E-8	2.57282E-8	1.38802E-6	3.88503E-8	-1.18453E-6	3.72304E-6
ω	-7.13297E-7	-7.84797E-7	-4.23524E-5	-1.18453E-6	3.62113E-5	-1.13634E-4
M	2.24072E-6	2.46617E-6	1.33064E-4	3.72304E-6	-1.13634E-4	3.56951E-4

Date of computation: 2025-11-19 13:08 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

27.127

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

10 - 22*

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

0.9

Unit

Source

[1]

Normalized RMS of residuals

Value

0.821641

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-11-14.399723

Unit

Source

[2]

Last Observation

Value

2025-11-18.75843

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

38 (4)

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 2025VC4 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	1955-11-23 12:47	> 1 d	0.1973124	0.0091801	0.1101730
EARTH	1983-05-09 15:10	> 1 d	0.0859596	0.0096370	0.0763620
EARTH	1990-11-13 00:41	634.3	0.1176124	0.0715065	0.0153719
EARTH	1992-05-12 13:33	295.3	0.0113170	0.0102914	0.0020701
EARTH	1999-11-21 14:05	477.0	0.0766386	0.0473345	0.0098339
EARTH	2018-05-10 07:39	463.7	0.0609658	0.0369688	0.0080649
EARTH	2025-11-18 00:04	< 1 s	0.0132793	0.0132584	0.0000070
EARTH	2027-05-18 19:23	45.4	0.1195870	0.1166783	0.0009696
EARTH	2034-11-22 05:25	309.0	0.1071471	0.0798673	0.0091113
EARTH	2062-05-06 09:09	404.2	0.1693402	0.1125917	0.0189164
EARTH	2069-11-09 23:37	876.2	0.1999545	0.1488621	0.0170361
EARTH	2071-05-10 07:52	945.1	0.0722427	0.0254916	0.0156850
EARTH	2078-11-12 07:12	160.4	0.1491510	0.1375185	0.0038777
EARTH	2080-05-11 11:32	94.5	0.0310376	0.0276799	0.0011203
EARTH	2087-11-10 01:13	822.2	0.1997346	0.1565853	0.0143868
EARTH	2089-05-08 22:40	900.2	0.0962585	0.0445645	0.0172667
EARTH	2098-05-05 19:00	183.2	0.1937732	0.1073626	0.0288036
EARTH	2124-11-23 03:09	1010.7	0.1306873	0.0092964	0.0432028

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
75.92210736	130.18805804	0.00745087	MINIMUM
288.43345153	315.11363027	0.01254213	MINIMUM
2.43322525	42.75729424	0.27245330	SADDLE
181.85003054	222.35182856	0.43642761	SADDLE
3.12953964	223.64601525	1.81281649	SADDLE
181.89105469	42.37168716	2.32779803	MAXIMUM

Download:

MOID Plots

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