Asteroids

2025SV4 help

Last update: 2025-09-24 02:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.928

Aphelion (Q)

1.950

Eccentricity (e)

0.355

Inclination (i)

0.4

deg

Orbit period (P)

630.7

Earth MOID

0.00041

U parameter

7.0

Next Earth close approach

Date

2044-09-16

Nominal distance (from Earth center)

0.0479

7165100

Maximum Brightness

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

30.1

mag

Diameter

2.5 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-09-23

Observatory

Catalina Sky 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

1.439336

1-sigma variation

0.000302

Unit

Eccentricity (e)

Value

0.354978

1-sigma variation

0.000145

Unit

Inclination (i)

Value

0.4234

1-sigma variation

3.702E-5

Unit

Long. of Ascending Node (Ω)

Value

183.9544

1-sigma variation

0.0008

Unit

Arg. of Perihelion (ω)

Value

221.3787

1-sigma variation

0.0037

Unit

Mean Anomaly (M)

Value

12.27548

1-sigma variation

0.00118

Unit

Perihelion distance

Value

0.928404

1-sigma variation

Unit

Aphelion distance

Value

1.950269

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.717197

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.009668

1-sigma variation

Unit

MOID

Value

0.000408

1-sigma variation

Unit

Orbit Period

Value

630.7277

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.13997E-8	4.37176E-8	5.66992E-9	2.36957E-7	-1.09766E-6	-3.53702E-7
e	4.37176E-8	2.09114E-8	2.72731E-9	1.13225E-7	-5.24627E-7	-1.69289E-7
i	5.66992E-9	2.72731E-9	1.37058E-9	6.98664E-9	-5.42580E-8	-2.43041E-8
Ω	2.36957E-7	1.13225E-7	6.98664E-9	6.73054E-7	-2.95029E-6	-8.99300E-7
ω	-1.09766E-6	-5.24627E-7	-5.42580E-8	-2.95029E-6	1.34461E-5	4.18637E-6
M	-3.53702E-7	-1.69289E-7	-2.43041E-8	-8.99300E-7	4.18637E-6	1.38564E-6

Date of computation: 2025-09-24 02:15 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

30.103

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

0.7

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.491759

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-23.332144

Unit

Source

[2]

Last Observation

Value

2025-09-24.05369

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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 2025SV4 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	1955-12-05 10:14	> 1 mo	0.0076976	0.0029962	1.4930011
EARTH	1968-10-16 02:22	> 1 mo	0.0452017	0.0018818	3.0005541
EARTH	1981-09-22 10:24	> 1 w	0.0095782	0.0006551	0.1099357
EARTH	1992-10-09 00:30	> 1 mo	0.0371992	0.0011471	0.1311220
EARTH	2003-12-03 14:04	> 1 d	0.0171748	0.0032396	0.0135714
EARTH	2014-10-22 13:11	> 1 w	0.0512429	0.0387500	0.0041673
EARTH	2025-09-23 20:51	< 1 s	0.0015366	0.0015351	0.0000005
EARTH	2044-09-16 09:59	> 1 d	0.0478957	0.0005544	0.0342012
EARTH	2056-12-25 11:28	> 1 d	0.0653071	0.0072381	0.0688270
EARTH	2075-12-08 07:08	438.6	0.0305167	0.0296350	0.0002945
EARTH	2094-09-10 17:16	> 1 d	0.1117937	0.0005826	0.0669777
EARTH	2106-11-22 23:13	> 1 w	0.0564162	0.0099327	0.0193364
EARTH	2119-01-04 21:27	> 1 d	0.1702861	0.1039656	0.0221199

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
328.50230579	260.54122575	0.00040819	MINIMUM
27.03805266	342.74788911	0.00710442	MINIMUM
357.68601708	301.57913069	0.06312527	SADDLE
178.86794206	122.81834973	0.94000540	SADDLE
357.57993678	121.44319486	1.93851249	SADDLE
178.88360055	302.83726253	2.94147496	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2025SV4

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2069-09-24.942	77013.942	1.543	0.000	1.83 ± 0.002	4.05E6	2.09E-8	1.11E-3	-10.17	0
2070-09-25.146	77379.146	2.795	0.000	1.45 ± 0.001	1.11E4	1.69E-6	1.11E-3	-8.27	0
2077-09-24.881	79935.881	2.822	0.000	1.35 ± 0.001	1.82E5	1.51E-7	1.11E-3	-9.38	0
2079-09-23.833	80664.833	1.633	0.000	0.92 ± 0.001	1.14E6	3.00E-7	1.11E-3	-9.10	0
2082-09-25.425	81762.425	0.408	0.000	1.67 ± 0.001	8.01E4	7.62E-6	1.10E-3	-7.72	0
2084-09-24.701	82492.701	1.961	0.000	0.50 ± 0.000	3.60E5	5.91E-7	1.11E-3	-8.85	0
2086-09-25.166	83223.166	1.352	0.000	1.61 ± 0.002	5.48E6	5.49E-8	1.11E-3	-9.89	0
2090-09-24.923	84683.923	1.421	0.000	1.26 ± 0.000	5.87E6	6.83E-8	1.11E-3	-9.83	0
2091-09-25.545	85049.545	1.963	0.000	1.38 ± 0.003	6.06E5	2.65E-7	1.11E-3	-9.24	0
2091-12-11.526	85126.526	-0.930	0.000	1.43 ± 0.251	2.11E6	3.51E-7	1.10E-3	-9.12	0
2092-09-23.574	85413.574	0.896	0.000	1.05 ± 0.001	2.17E5	4.41E-6	1.11E-3	-8.02	0
2095-09-24.200	86509.200	1.218	0.000	0.83 ± 0.001	3.66E6	1.73E-7	1.11E-3	-9.45	0
2095-09-24.308	86509.308	1.215	0.000	1.27 ± 0.001	1.16E6	5.86E-7	1.11E-3	-8.92	0
2095-09-25.281	86510.281	1.656	0.000	1.09 ± 0.003	4.65E6	6.58E-8	1.11E-3	-9.87	0
2095-09-25.626	86510.626	1.281	0.000	0.89 ± 0.001	4.91E6	1.17E-7	1.11E-3	-9.62	0
2099-09-24.685	87970.685	-4.104	0.000	1.82 ± 0.001	1.59E4	4.72E-9	1.09E-3	-11.05	0
2099-09-25.715	87971.715	0.407	0.000	1.49 ± 0.000	2.14E7	3.87E-8	1.11E-3	-10.13	0
2100-09-24.414	88335.414	1.215	0.000	1.72 ± 0.000	9.28E7	6.92E-9	1.11E-3	-10.88	0
2101-09-25.724	88701.724	1.356	0.000	0.20 ± 0.000	3.43E6	1.72E-7	1.11E-3	-9.49	0
2102-09-26.040	89067.040	1.018	0.000	1.51 ± 0.000	6.05E6	8.56E-8	1.11E-3	-9.80	0
2102-09-26.072	89067.072	1.221	0.000	0.29 ± 0.000	6.67E6	1.05E-7	1.11E-3	-9.71	0
2104-09-24.326	89796.326	0.957	0.000	0.57 ± 0.004	2.04E6	4.62E-7	1.11E-3	-9.07	0
2104-09-24.394	89796.394	0.928	0.000	0.85 ± 0.001	7.33E5	1.17E-6	1.11E-3	-8.67	0
2104-09-24.506	89796.506	0.960	0.000	1.74 ± 0.001	3.83E5	9.20E-7	1.11E-3	-8.78	0
2106-09-25.519	90527.519	-0.341	0.000	0.64 ± 0.001	2.13E4	6.19E-5	1.10E-3	-6.96	0
2106-09-26.252	90528.252	0.844	0.000	1.53 ± 0.002	1.63E5	4.59E-6	1.11E-3	-8.09	0
2106-09-26.289	90528.289	0.843	0.000	0.83 ± 0.001	1.13E5	9.12E-6	1.11E-3	-7.80	0
2107-09-25.269	90892.269	1.019	0.000	0.73 ± 0.001	2.25E7	3.66E-8	1.11E-3	-10.19	0
2107-09-26.083	90893.083	1.434	0.000	0.49 ± 0.000	2.97E7	1.73E-8	1.11E-3	-10.52	0
2107-12-14.246	90972.246	-0.880	0.071	1.88 ± 2.219	5.68E5	6.23E-7	1.15E-3	-8.95	0
2108-09-24.781	91257.781	1.550	0.000	0.53 ± 0.001	1.45E6	2.95E-7	1.11E-3	-9.29	0
2108-09-26.116	91259.116	-2.964	0.000	1.68 ± 0.001	1.47E4	5.42E-7	1.10E-3	-9.04	0
2109-09-24.655	91622.655	1.633	0.000	1.49 ± 0.000	3.49E7	6.99E-9	1.11E-3	-10.92	0
2109-09-24.682	91622.682	0.960	0.000	1.73 ± 0.000	7.71E7	4.88E-9	1.11E-3	-11.08	0
2109-09-24.857	91622.857	0.895	0.000	1.55 ± 0.003	7.38E6	7.94E-8	1.10E-3	-9.87	0
2110-09-26.526	91989.526	2.148	0.000	1.58 ± 0.001	2.96E5	3.15E-7	1.11E-3	-9.28	0
2110-09-26.575	91989.575	1.305	0.000	1.82 ± 0.000	4.79E6	5.96E-8	1.11E-3	-10.00	0
2111-09-25.700	92353.700	-0.345	0.000	0.49 ± 0.001	5.17E6	2.62E-7	1.10E-3	-9.36	0
2112-09-24.682	92718.682	1.239	0.000	0.63 ± 0.001	2.00E6	3.25E-7	1.11E-3	-9.27	0
2112-09-24.991	92718.991	1.698	0.000	1.52 ± 0.001	4.91E4	4.23E-6	1.11E-3	-8.16	0
2113-09-25.230	93084.230	-0.336	0.000	0.88 ± 0.001	2.70E6	4.57E-7	1.11E-3	-9.13	0
2113-09-26.386	93085.386	1.394	0.000	0.44 ± 0.032	3.58E7	1.53E-8	1.11E-3	-10.60	0
2114-09-25.151	93449.151	0.895	0.000	0.92 ± 0.008	2.91E7	2.99E-8	1.11E-3	-10.32	0
2114-12-14.185	93529.185	0.476	3.640	1.87 ± 11.366	1.81E6	3.16E-10	1.16E-3	-12.28	0
2115-09-26.846	93815.846	1.319	0.000	1.60 ± 0.000	7.49E6	4.36E-8	1.11E-3	-10.16	0
2116-09-26.488	94181.488	1.150	0.000	0.34 ± 0.000	4.68E6	1.62E-7	1.11E-3	-9.60	0
2117-09-26.069	94546.069	2.243	0.000	1.58 ± 0.000	1.63E8	6.17E-10	1.11E-3	-12.02	0
2118-09-24.965	94909.965	0.931	0.000	1.86 ± 0.000	5.60E7	8.66E-9	1.11E-3	-10.87	0
2118-09-25.170	94910.170	0.897	0.000	0.43 ± 0.000	5.26E7	1.87E-8	1.11E-3	-10.54	0
2118-09-25.488	94910.488	-4.128	0.000	0.77 ± 0.001	4.80E5	5.63E-10	1.09E-3	-12.07	0
2118-09-25.530	94910.530	-0.379	0.000	1.01 ± 0.002	9.43E4	1.25E-5	1.10E-3	-7.72	0
2118-09-26.310	94911.310	1.624	0.000	1.75 ± 0.001	2.93E6	7.97E-8	1.11E-3	-9.91	0
2119-09-25.901	95275.901	1.161	0.000	1.44 ± 0.003	2.13E6	3.55E-7	1.11E-3	-9.27	0
2120-09-25.039	95641.039	-0.342	0.000	0.43 ± 0.000	2.07E8	6.66E-9	1.10E-3	-11.00	0
2120-09-26.137	95642.137	-2.985	0.000	1.43 ± 0.001	5.04E5	2.22E-8	1.09E-3	-10.48	0
2122-09-26.044	96372.044	0.667	0.000	0.62 ± 0.063	8.63E7	1.30E-8	1.11E-3	-10.72	0
2123-09-25.250	96736.250	0.960	0.354	1.87 ± 0.011	2.62E7	1.07E-9	1.11E-3	-11.80	0
2123-09-25.831	96736.831	-0.350	0.000	0.69 ± 0.002	2.62E6	4.96E-7	1.10E-3	-9.14	0
2124-09-24.665	97101.665	1.015	0.000	0.83 ± 0.008	2.46E7	3.24E-8	1.11E-3	-10.33	0
2125-09-25.228	97467.228	-0.380	0.000	1.15 ± 0.000	1.48E7	7.35E-8	1.10E-3	-9.98	n/a
2125-09-25.396	97467.396	-0.318	0.000	1.73 ± 0.001	3.78E5	2.53E-6	1.10E-3	-8.44	n/a
2125-09-25.452	97467.452	0.180	0.000	1.64 ± 0.001	1.55E6	6.98E-7	1.11E-3	-9.00	n/a
2125-09-26.192	97468.192	0.688	0.000	0.65 ± 0.001	4.65E6	2.38E-7	1.11E-3	-9.47	n/a


Based on 18 optical observations (of which 0 are rejected as outliers) from 2025/09/23.332 to 2025/09/24.054.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.86 and 1.86 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250924 023204.900 UTC.

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