Asteroids

2026RF3 help

Last update: 2026-09-15 13:01 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.662

Aphelion (Q)

2.129

Eccentricity (e)

0.526

Inclination (i)

12.4

deg

Orbit period (P)

602.2

Earth MOID

0.00174

U parameter

8.4

Next Earth close approach

Date

2041-03-10

Nominal distance (from Earth center)

0.0732

10950124

Maximum Brightness

23.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.4

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-09-08

Observatory

MARGO, Nauchnyi

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

1.395611

1-sigma variation

0.002063

Unit

Eccentricity (e)

Value

0.525531

1-sigma variation

0.000976

Unit

Inclination (i)

Value

12.4038

1-sigma variation

0.0225

Unit

Long. of Ascending Node (Ω)

Value

345.1699

1-sigma variation

0.0018

Unit

Arg. of Perihelion (ω)

Value

268.4963

1-sigma variation

0.0062

Unit

Mean Anomaly (M)

Value

339.75678

1-sigma variation

0.01838

Unit

Perihelion distance

Value

0.662175

1-sigma variation

Unit

Aphelion distance

Value

2.129048

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.016129

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.004662

1-sigma variation

Unit

MOID

Value

0.001743

1-sigma variation

Unit

Orbit Period

Value

602.2061

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.25550E-6	2.01350E-6	4.64547E-5	3.76309E-6	1.26949E-5	3.79257E-5
e	2.01350E-6	9.52708E-7	2.19809E-5	1.78057E-6	6.00435E-6	1.79448E-5
i	4.64547E-5	2.19809E-5	5.07166E-4	4.10831E-5	1.38462E-4	4.14019E-4
Ω	3.76309E-6	1.78057E-6	4.10831E-5	3.32799E-6	1.12172E-5	3.35378E-5
ω	1.26949E-5	6.00435E-6	1.38462E-4	1.12172E-5	3.82490E-5	1.13123E-4
M	3.79257E-5	1.79448E-5	4.14019E-4	3.35378E-5	1.13123E-4	3.38002E-4

Date of computation: 2026-09-15 13:01 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

26.425

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

14 - 30*

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

0.686706

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-09-08.01868

Unit

Source

[2]

Last Observation

Value

2026-09-14.214753

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

37 (2)

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 2026RF3 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	1962-03-12 00:08	> 1 mo	0.1007429	0.0040609	11.0187275
EARTH	1970-09-11 03:11	> 1 mo	0.0872598	0.0068054	9.4504913
EARTH	1985-03-06 13:45	> 1 w	0.0104452	0.0004747	0.2853900
EARTH	1993-09-15 09:07	> 1 w	0.1844383	0.0042413	0.2797504
EARTH	1998-08-26 15:52	> 1 w	0.1679439	0.0006918	0.2693070
EARTH	2013-03-12 03:57	> 1 w	0.1036874	0.0016559	0.1751179
EARTH	2026-09-05 14:52	< 1 min	0.0201943	0.0200855	0.0000363
EARTH	2041-03-10 05:52	> 1 w	0.0731971	0.0002878	0.2131376
EARTH	2049-09-15 01:26	> 1 w	0.1708083	0.0023059	0.2422577
EARTH	2069-03-03 06:06	> 1 w	0.0606253	0.0024339	0.3944474
EARTH	2077-09-08 20:39	> 1 w	0.0414112	0.0041946	0.1306986
EARTH	2097-02-28 01:35	> 1 mo	0.1309240	0.0028270	0.8481609
EARTH	2105-09-07 00:35	> 1 mo	0.0154229	0.0024722	1.1332330
EARTH	2120-02-29 11:11	> 1 mo	0.1351549	0.0029824	15.7210061

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
303.33306258	60.35029385	0.00174331	MINIMUM
58.33871254	240.16878497	0.00588996	MINIMUM
1.18270183	150.66644835	0.39442816	SADDLE
180.42811843	329.70211438	1.18533956	SADDLE
1.13688489	330.60192923	1.63861296	SADDLE
180.34541224	149.66184107	3.12746576	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2026RF3

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2077-09-07.637	79918.637	1.975	0.74 ± 0.077	3.61E6	3.28E-8	4.35E-1	-7.96
2106-09-08.731	90510.731	-0.377	0.82 ± 0.013	3.85E5	1.80E-6	4.27E-1	-6.42
2116-09-08.170	94163.170	-1.725	0.77 ± 0.022	5.09E6	3.78E-8	4.22E-1	-8.15


Based on 37 optical observations (of which 2 are rejected as outliers) from 2026/09/08.019 to 2026/09/14.215.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.19 and 1.19 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260915 134335.208 UTC.

Download this part as:

Download Impactor Table as: