Asteroids

2010RX30 help

Last update: 2026-07-30 11:21 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.508

Aphelion (Q)

1.154

Eccentricity (e)

0.388

Inclination (i)

5.1

deg

Orbit period (P)

276.6

Earth MOID

0.00086

U parameter

1.1

Next Earth close approach

Date

2035-09-09

Nominal distance (from Earth center)

0.0678

10142556

Maximum Brightness

25.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.2

mag

Diameter

10 - 21*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2010-09-05

Observatory

University of Arizona 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.830859

1-sigma variation

1.020E-8

Unit

Eccentricity (e)

Value

0.388381

1-sigma variation

0.000001

Unit

Inclination (i)

Value

5.0646

1-sigma variation

1.509E-5

Unit

Long. of Ascending Node (Ω)

Value

165.9271

1-sigma variation

2.488E-6

Unit

Arg. of Perihelion (ω)

Value

320.0397

1-sigma variation

1.714E-5

Unit

Mean Anomaly (M)

Value

183.98599

1-sigma variation

0.00007

Unit

Perihelion distance

Value

0.508169

1-sigma variation

Unit

Aphelion distance

Value

1.153548

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.448304

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.003413

1-sigma variation

Unit

MOID

Value

0.000861

1-sigma variation

Unit

Orbit Period

Value

276.6236

1-sigma variation

Unit

U parameter

Value

1.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.04116E-16	5.50635E-15	1.42336E-13	-4.92984E-15	-1.72390E-13	-6.78111E-13
e	5.50635E-15	2.95141E-13	7.62019E-12	-2.58946E-13	-9.21864E-12	-3.47792E-11
i	1.42336E-13	7.62019E-12	2.27583E-10	-1.33659E-11	-2.31332E-10	-9.02420E-10
Ω	-4.92984E-15	-2.58946E-13	-1.33659E-11	6.19046E-12	2.31185E-12	3.17726E-11
ω	-1.72390E-13	-9.21864E-12	-2.31332E-10	2.31185E-12	2.93801E-10	1.09539E-9
M	-6.78111E-13	-3.47792E-11	-9.02420E-10	3.17726E-11	1.09539E-9	4.71649E-9

Date of computation: 2026-07-30 11:21 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

27.216

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

10 - 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

1073

Unit

Source

[1]

Unobserved

Value

4747

Unit

Source

[1]

Normalized RMS of residuals

Value

0.605912

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2010-09-05.43059

Unit

Source

[2]

Last Observation

Value

2013-08-13.54884

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

102 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2010RX30 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1957-06-22 08:29	< 1 min	0.1318553	0.1318230	0.0000108
VENUS	1957-11-28 05:14	1.1	0.0259531	0.0258965	0.0000189
EARTH	1960-06-22 20:03	< 1 min	0.0775921	0.0775905	0.0000005
EARTH	1963-07-06 23:01	2.7	0.1177053	0.1176943	0.0000037
EARTH	1966-07-28 11:19	2.4	0.1426501	0.1426489	0.0000004
EARTH	1969-08-18 20:51	1.1	0.1201639	0.1201593	0.0000015
VENUS	1972-01-24 07:59	< 1 min	0.0273267	0.0273238	0.0000010
EARTH	1972-09-04 22:44	< 1 min	0.0479637	0.0479625	0.0000004
EARTH	1975-09-09 10:33	< 1 min	0.0327672	0.0327558	0.0000038
EARTH	1978-09-07 16:57	< 1 min	0.1408336	0.1408183	0.0000051
VENUS	1983-06-15 23:50	< 1 min	0.0373339	0.0373113	0.0000075
EARTH	1995-06-22 20:08	< 1 min	0.1217919	0.1217784	0.0000045
VENUS	1997-08-09 05:18	< 1 min	0.0352510	0.0352351	0.0000053
EARTH	1998-06-24 07:20	< 1 min	0.0795480	0.0795441	0.0000013
EARTH	2001-07-12 01:09	1.3	0.1279426	0.1279375	0.0000017
EARTH	2004-08-04 06:16	< 1 min	0.1402682	0.1402673	0.0000003
EARTH	2007-08-27 13:14	< 1 min	0.0966660	0.0966642	0.0000006
EARTH	2010-09-08 09:50	< 1 s	0.0016559	0.0016558	0.0000000
EARTH	2013-08-19 19:09	< 1 min	0.1231190	0.1231180	0.0000004
EARTH	2016-07-19 08:46	< 1 min	0.1489390	0.1489373	0.0000005
EARTH	2019-06-21 23:43	< 1 min	0.0935270	0.0935257	0.0000004
EARTH	2022-06-19 23:55	< 1 min	0.1522454	0.1522448	0.0000002
EARTH	2035-09-09 03:38	< 1 min	0.0677988	0.0677913	0.0000025
EARTH	2038-09-01 18:21	< 1 min	0.0765500	0.0765449	0.0000017
EARTH	2041-08-03 07:20	< 1 min	0.1489275	0.1489258	0.0000006
EARTH	2044-07-02 03:59	< 1 min	0.1242470	0.1242455	0.0000005
EARTH	2047-06-19 06:21	< 1 min	0.1003075	0.1003063	0.0000004
EARTH	2060-09-06 23:43	< 1 min	0.1423492	0.1423433	0.0000020
EARTH	2063-09-08 04:33	< 1 min	0.0194495	0.0194439	0.0000019
EARTH	2066-08-10 04:19	< 1 min	0.1427731	0.1427711	0.0000007
EARTH	2069-07-02 21:41	< 1 min	0.1263484	0.1263461	0.0000008
VENUS	2069-11-15 09:05	< 1 min	0.0359342	0.0359198	0.0000048
EARTH	2072-06-18 12:10	< 1 min	0.1096384	0.1096302	0.0000028
VENUS	2083-09-23 03:01	< 1 min	0.0258787	0.0258724	0.0000021
EARTH	2085-09-08 21:12	< 1 min	0.0464133	0.0463801	0.0000111
EARTH	2088-08-26 14:38	3.2	0.1018232	0.1018000	0.0000077
EARTH	2091-07-24 22:53	4.2	0.1510184	0.1510178	0.0000002
EARTH	2094-06-22 16:19	1.2	0.0961567	0.0961472	0.0000032
EARTH	2097-06-20 04:45	< 1 min	0.1632485	0.1632288	0.0000066
EARTH	2107-09-08 10:10	< 1 min	0.1566909	0.1566892	0.0000006
EARTH	2110-09-08 17:07	< 1 min	0.0242391	0.0242322	0.0000023
VENUS	2112-04-29 15:42	< 1 min	0.0187584	0.0187538	0.0000015
EARTH	2113-08-08 19:26	1.8	0.1447609	0.1447588	0.0000007
EARTH	2116-07-02 02:02	2.2	0.1213582	0.1213471	0.0000037
EARTH	2119-06-20 10:55	< 1 min	0.1179222	0.1179023	0.0000066

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
236.74183160	241.84212360	0.00086142	MINIMUM
125.23822727	163.39447970	0.08778340	MINIMUM
176.80298975	199.83451432	0.15139949	SADDLE
0.56410181	21.82942075	0.47816128	SADDLE
1.43159217	203.07522263	1.52322220	SADDLE
180.98337074	22.63582362	2.13742366	MAXIMUM

Download:

MOID Plots

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