Asteroids

2026RS2 help

Last update: 2026-09-08 01:00 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.743

Aphelion (Q)

1.250

Eccentricity (e)

0.254

Inclination (i)

2.7

deg

Orbit period (P)

363.2

Earth MOID

0.00063

U parameter

6.6

Next Earth close approach

Date

2027-08-26

Nominal distance (from Earth center)

0.13548

20267919

Maximum Brightness

27.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

2.7 - 6*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-05

Observatory

Kitt Peak-Bok

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

0.996313

1-sigma variation

0.000071

Unit

Eccentricity (e)

Value

0.254418

1-sigma variation

0.000367

Unit

Inclination (i)

Value

2.6706

1-sigma variation

0.0051

Unit

Long. of Ascending Node (Ω)

Value

162.9256

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

288.1895

1-sigma variation

0.0187

Unit

Mean Anomaly (M)

Value

192.79033

1-sigma variation

0.04283

Unit

Perihelion distance

Value

0.742833

1-sigma variation

Unit

Aphelion distance

Value

1.249793

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.127923

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.003422

1-sigma variation

Unit

MOID

Value

0.000629

1-sigma variation

Unit

Orbit Period

Value

363.2388

1-sigma variation

Unit

U parameter

Value

6.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.04883E-9	1.07625E-8	1.06044E-7	-8.96496E-9	-5.95538E-7	2.59597E-6
e	1.07625E-8	1.34898E-7	1.87415E-6	-1.54157E-7	4.31191E-6	1.30127E-5
i	1.06044E-7	1.87415E-6	2.64933E-5	-2.17699E-6	6.96565E-5	1.64622E-4
Ω	-8.96496E-9	-1.54157E-7	-2.17699E-6	1.78956E-7	-5.67527E-6	-1.36310E-5
ω	-5.95538E-7	4.31191E-6	6.96565E-5	-5.67527E-6	3.48502E-4	6.66444E-5
M	2.59597E-6	1.30127E-5	1.64622E-4	-1.36310E-5	6.66444E-5	1.83439E-3

Date of computation: 2026-09-08 01:00 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

29.992

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

2.7 - 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

0.906243

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-05.236041

Unit

Source

[2]

Last Observation

Value

2026-09-05.902396

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 2026RS2 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	2006-04-13 11:12	170.0	0.1405652	0.1307526	0.0032758
EARTH	2007-04-11 03:10	196.3	0.0831893	0.0727129	0.0035222
EARTH	2008-04-08 04:16	194.6	0.0361613	0.0295356	0.0026252
EARTH	2009-04-06 20:33	157.5	0.0329447	0.0276059	0.0022946
EARTH	2010-04-06 06:20	94.8	0.0761730	0.0642242	0.0040320
EARTH	2011-04-17 06:22	> 1 d	0.1277722	0.1159415	0.0039483
EARTH	2012-02-23 20:42	> 1 d	0.1751996	0.1667708	0.0028204
EARTH	2012-05-05 00:54	> 1 d	0.1687257	0.1602474	0.0028267
EARTH	2013-05-18 13:38	> 1 d	0.1971799	0.1910442	0.0020455
EARTH	2021-07-31 13:54	> 1 d	0.1892474	0.1864652	0.0009277
EARTH	2022-08-12 13:00	1274.1	0.1617385	0.1583951	0.0011148
EARTH	2022-10-18 14:51	> 1 d	0.1745609	0.1711675	0.0011314
EARTH	2023-08-27 06:43	751.1	0.1249374	0.1211507	0.0012624
EARTH	2024-09-05 20:39	124.7	0.0800998	0.0768206	0.0010931
EARTH	2025-09-07 07:04	6.5	0.0364905	0.0345271	0.0006545
EARTH	2026-09-06 19:08	< 1 min	0.0023848	0.0023685	0.0000054
EARTH	2027-08-26 22:50	448.0	0.1354827	0.1333530	0.0007099
EARTH	2032-02-06 22:29	> 1 d	0.1792294	0.1717610	0.0024945
EARTH	2032-04-26 23:21	> 1 d	0.1839693	0.1751294	0.0029467
EARTH	2033-03-25 07:56	111.0	0.0694958	0.0529806	0.0055610
EARTH	2034-03-30 19:01	270.8	0.0659664	0.0492181	0.0056701
EARTH	2072-09-02 21:20	986.7	0.0810619	0.0333284	0.0159126
EARTH	2073-09-07 20:36	416.9	0.0506187	0.0064893	0.0147205
EARTH	2074-08-11 08:47	> 1 d	0.1734433	0.1527989	0.0068883
EARTH	2074-10-22 20:30	> 1 w	0.1744645	0.1563623	0.0060416
EARTH	2079-03-11 20:11	> 1 d	0.1311910	0.1092677	0.0073251
EARTH	2079-04-03 09:12	> 1 d	0.1303354	0.1090407	0.0070991
EARTH	2080-03-27 21:52	310.2	0.0226734	0.0182060	0.0068623
EARTH	2081-04-04 05:00	594.7	0.1731703	0.1236498	0.0165544
EARTH	2111-09-06 03:22	> 1 d	0.0672040	0.0017185	0.0735587
EARTH	2112-09-09 03:40	> 1 d	0.0984661	0.0035044	0.0639844
EARTH	2117-03-25 07:39	136.9	0.1092850	0.0699210	0.0132700
EARTH	2118-03-31 08:58	499.0	0.0631262	0.0613613	0.0005887

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
267.22251119	240.12528672	0.00062869	MINIMUM
89.91098670	90.37562502	0.02554858	MINIMUM
178.69160355	165.52670336	0.23873158	SADDLE
358.21616912	344.74809345	0.24416200	SADDLE
358.66679893	165.33106687	1.75875625	SADDLE
179.37124984	346.06412571	2.23322041	MAXIMUM

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MOID Plots

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