Asteroids

2026RC help

Last update: 2026-09-04 13:22 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.679

Aphelion (Q)

1.073

Eccentricity (e)

0.225

Inclination (i)

7.1

deg

Orbit period (P)

299.3

Earth MOID

0.00119

U parameter

6.3

Next Earth close approach

Date

2031-07-23

Nominal distance (from Earth center)

0.11073

16564866

Maximum Brightness

26.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.9

mag

Diameter

4 - 10*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-02

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

0.875663

1-sigma variation

0.000032

Unit

Eccentricity (e)

Value

0.224892

1-sigma variation

0.000082

Unit

Inclination (i)

Value

7.1335

1-sigma variation

0.0035

Unit

Long. of Ascending Node (Ω)

Value

340.7506

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

142.2198

1-sigma variation

0.0011

Unit

Mean Anomaly (M)

Value

131.68937

1-sigma variation

0.00339

Unit

Perihelion distance

Value

0.678734

1-sigma variation

Unit

Aphelion distance

Value

1.072593

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.001900

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.284852

1-sigma variation

Unit

MOID

Value

0.001189

1-sigma variation

Unit

Orbit Period

Value

299.2983

1-sigma variation

Unit

U parameter

Value

6.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.02500E-9	-2.63043E-9	-1.11487E-7	3.40856E-9	2.83963E-8	-1.02181E-7
e	-2.63043E-9	6.76344E-9	2.86569E-7	-8.74362E-9	-7.50340E-8	2.66377E-7
i	-1.11487E-7	2.86569E-7	1.21437E-5	-3.70666E-7	-3.16516E-6	1.12612E-5
Ω	3.40856E-9	-8.74362E-9	-3.70666E-7	1.13433E-8	9.37996E-8	-3.38602E-7
ω	2.83963E-8	-7.50340E-8	-3.16516E-6	9.37996E-8	1.14599E-6	-3.52085E-6
M	-1.02181E-7	2.66377E-7	1.12612E-5	-3.38602E-7	-3.52085E-6	1.15116E-5

Date of computation: 2026-09-04 13:22 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

28.864

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

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

[-]

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

0.800377

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-02.371364

Unit

Source

[2]

Last Observation

Value

2026-09-03.934711

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

13 (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 2026RC 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	1952-06-21 18:57	> 1 w	0.1222812	0.1222037	0.0022273
EARTH	1957-09-07 06:43	> 1 w	0.0387227	0.0042610	0.5268388
EARTH	1966-06-15 09:47	> 1 d	0.1362098	0.1237172	0.0524199
EARTH	1971-09-07 12:51	> 1 d	0.0302064	0.0039315	0.1128291
EARTH	1980-07-17 14:59	> 1 w	0.1133081	0.1077475	0.0077968
EARTH	1989-06-16 08:10	431.6	0.1891257	0.1254213	0.0293627
EARTH	1994-09-07 13:42	> 1 d	0.0498468	0.0047150	0.0765627
EARTH	2003-09-04 04:59	651.4	0.0123832	0.0027498	0.0041154
EARTH	2012-06-16 09:39	269.9	0.1324001	0.1281498	0.0015680
EARTH	2017-09-06 06:34	70.0	0.1199828	0.1108075	0.0030589
EARTH	2026-09-03 23:07	< 1 min	0.0019462	0.0019437	0.0000008
EARTH	2031-07-23 16:42	1322.4	0.1107293	0.1090607	0.0005692
EARTH	2036-06-04 21:25	8.3	0.1366516	0.1308443	0.0020974
EARTH	2052-09-05 00:45	43.4	0.0845229	0.0691980	0.0051096
EARTH	2057-08-24 01:22	815.6	0.0609400	0.0563504	0.0015357
EARTH	2062-06-10 09:40	513.6	0.1178772	0.1176863	0.0001115
EARTH	2078-09-04 23:23	619.4	0.0155434	0.0031692	0.0090698
EARTH	2083-08-25 17:02	> 1 w	0.0563308	0.0122651	0.0551726
VENUS	2084-10-30 15:36	> 1 w	0.0230034	0.0221859	0.0235129
EARTH	2088-07-13 05:20	> 1 mo	0.1151853	0.1094214	0.0401617
EARTH	2093-06-05 21:13	> 1 d	0.1317949	0.1172629	0.2149499
EARTH	2114-09-06 22:49	> 1 d	0.0610209	0.0054817	0.3606853
VENUS	2114-12-21 00:58	> 1 mo	0.0228090	0.0227225	0.0307627
EARTH	2119-08-29 21:41	> 1 mo	0.0439837	0.0065877	0.6271952
EARTH	2124-07-14 06:05	> 1 mo	0.1144548	0.1095357	0.0700315

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
227.04233787	237.55958026	0.00118922	MINIMUM
354.99766026	12.20707047	0.31250728	SADDLE
0.96043721	199.50489510	1.69349611	SADDLE
182.22543682	20.85808987	2.05563990	MAXIMUM

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MOID Plots

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