Asteroids

2003SW130 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.615

Aphelion (Q)

1.153

Eccentricity (e)

0.304

Inclination (i)

3.7

deg

Orbit period (P)

303.4

Earth MOID

0.00065

U parameter

6.2

Next Earth close approach

Date

2028-11-23

Nominal distance (from Earth center)

0.16174

24195509

Maximum Brightness

26.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

4 - 10*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2003-09-20

Observatory

LPL/Spacewatch II

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

0.883741

1-sigma variation

0.000018

Unit

Eccentricity (e)

Value

0.304350

1-sigma variation

0.000131

Unit

Inclination (i)

Value

3.6740

1-sigma variation

0.0018

Unit

Long. of Ascending Node (Ω)

Value

176.2977

1-sigma variation

0.0025

Unit

Arg. of Perihelion (ω)

Value

47.7511

1-sigma variation

0.0096

Unit

Mean Anomaly (M)

Value

344.31413

1-sigma variation

0.28281

Unit

Perihelion distance

Value

0.614774

1-sigma variation

Unit

Aphelion distance

Value

1.152707

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.330436

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.003150

1-sigma variation

Unit

MOID

Value

0.000655

1-sigma variation

Unit

Orbit Period

Value

303.4489

1-sigma variation

Unit

U parameter

Value

6.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.22280E-10	2.35112E-9	3.23593E-8	4.44198E-8	1.71902E-7	-5.07682E-6
e	2.35112E-9	1.72397E-8	2.37758E-7	3.24299E-7	1.25618E-6	-3.70613E-5
i	3.23593E-8	2.37758E-7	3.28295E-6	4.46479E-6	1.73002E-5	-5.10222E-4
Ω	4.44198E-8	3.24299E-7	4.46479E-6	6.12309E-6	2.36991E-5	-6.99806E-4
ω	1.71902E-7	1.25618E-6	1.73002E-5	2.36991E-5	9.17426E-5	-2.70854E-3
M	-5.07682E-6	-3.70613E-5	-5.10222E-4	-6.99806E-4	-2.70854E-3	7.99812E-2

Date of computation: 2025-09-10 00:30 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

28.96

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

4 - 10*

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

Unit

Source

[1]

Unobserved

Value

8068

Unit

Source

[1]

Normalized RMS of residuals

Value

0.904291

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2003-09-20.13152

Unit

Source

[2]

Last Observation

Value

2003-09-28.127112

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

27 (3)

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 2003SW130 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	1953-12-27 03:04	> 1 w	0.0651179	0.0296344	0.8116973
EARTH	1957-09-18 23:06	> 1 w	0.0670054	0.0021435	1.3620069
EARTH	1962-10-24 21:20	> 1 mo	0.1547564	0.0401033	0.3404870
EARTH	1967-12-23 12:01	> 1 mo	0.0718301	0.0304880	1.1048299
EARTH	1976-09-25 19:12	> 1 mo	0.0816121	0.0037283	0.6932745
EARTH	1981-11-28 15:13	> 1 mo	0.1442574	0.0475458	0.2076189
EARTH	1986-12-25 12:28	> 1 d	0.1383731	0.0274797	0.2555493
EARTH	1990-09-19 00:57	19.5	0.0013109	0.0011802	0.0002746
EARTH	1995-12-21 08:45	40.2	0.1806051	0.1781901	0.0008056
EARTH	1999-11-21 12:42	192.5	0.1471840	0.1464842	0.0002333
EARTH	2003-09-19 05:38	< 1 min	0.0010822	0.0010803	0.0000006
EARTH	2008-09-19 04:09	51.9	0.0233706	0.0205964	0.0009248
EARTH	2013-09-28 21:32	172.2	0.0981607	0.0971230	0.0003459
EARTH	2018-10-17 12:28	910.0	0.1478653	0.1458949	0.0006573
EARTH	2023-11-05 16:50	> 1 d	0.1691231	0.1688998	0.0000763
EARTH	2028-11-23 15:17	> 1 d	0.1617370	0.1583655	0.0011300
EARTH	2033-12-13 10:52	> 1 d	0.1275230	0.1190782	0.0028494
EARTH	2038-12-28 04:43	436.4	0.0737209	0.0667787	0.0026851
EARTH	2043-12-29 19:56	123.7	0.0756878	0.0674837	0.0032053
EARTH	2048-12-26 20:02	276.0	0.1520541	0.1348336	0.0058164
EARTH	2052-09-21 10:53	250.8	0.1754060	0.1579479	0.0058194
EARTH	2057-09-19 01:20	139.4	0.0710847	0.0568567	0.0047427
EARTH	2062-09-19 06:02	61.4	0.0121329	0.0056202	0.0021729
EARTH	2067-10-19 11:17	> 1 d	0.1498380	0.1280700	0.0073226
EARTH	2072-11-27 06:23	> 1 w	0.1550574	0.1186700	0.0131500
EARTH	2077-12-28 18:54	34.8	0.0636413	0.0619699	0.0130977
EARTH	2086-09-18 22:38	> 1 d	0.0057579	0.0009520	0.1130413
EARTH	2091-09-19 16:16	> 1 mo	0.0714623	0.0005830	4.8267924
EARTH	2096-09-21 02:43	> 1 mo	0.1578869	0.0003449	10.2288719
EARTH	2102-12-30 17:02	> 1 mo	0.1315560	0.0606377	15.7477550
EARTH	2108-01-01 22:34	> 1 mo	0.0659879	0.0608813	7.5475298
EARTH	2112-12-29 08:02	> 1 mo	0.0846242	0.0608620	14.5061340
EARTH	2117-12-12 19:12	> 1 mo	0.1375871	0.0664397	12.1196950
EARTH	2122-11-22 21:24	> 1 mo	0.1691141	0.1161349	3.8579767

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
116.71296199	254.26353460	0.00079030	MINIMUM
249.20804507	355.40409378	0.06180294	MINIMUM
184.21461606	305.50259561	0.16991054	SADDLE
4.76035541	127.05854877	0.39637098	SADDLE
4.03495447	306.07358218	1.60499899	SADDLE
181.96015051	123.88013220	2.16074558	MAXIMUM

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MOID Plots

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