Asteroids

2026FJ help

Last update: 2026-03-27 13:01 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.915

Aphelion (Q)

1.061

Eccentricity (e)

0.074

Inclination (i)

1.0

deg

Orbit period (P)

358.7

Earth MOID

0.00872

U parameter

5.5

Next Earth close approach

Date

2027-03-31

Nominal distance (from Earth center)

0.0954

14271860

Maximum Brightness

25.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.4

mag

Diameter

9 - 19*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-03-17

Observatory

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

0.988052

1-sigma variation

0.000013

Unit

Eccentricity (e)

Value

0.073705

1-sigma variation

0.000060

Unit

Inclination (i)

Value

0.9959

1-sigma variation

0.0008

Unit

Long. of Ascending Node (Ω)

Value

161.8517

1-sigma variation

0.0060

Unit

Arg. of Perihelion (ω)

Value

133.8489

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

331.66485

1-sigma variation

0.00074

Unit

Perihelion distance

Value

0.915228

1-sigma variation

Unit

Aphelion distance

Value

1.060876

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.044468

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.073926

1-sigma variation

Unit

MOID

Value

0.008716

1-sigma variation

Unit

Orbit Period

Value

358.7306

1-sigma variation

Unit

U parameter

Value

5.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.81866E-10	-8.13675E-10	-1.09148E-8	-8.13717E-8	-1.25578E-8	-5.66970E-9
e	-8.13675E-10	3.65003E-9	4.89335E-8	3.64620E-7	5.47918E-8	2.72364E-8
i	-1.09148E-8	4.89335E-8	6.56193E-7	4.89062E-6	7.38163E-7	3.59512E-7
Ω	-8.13717E-8	3.64620E-7	4.89062E-6	3.64588E-5	5.52118E-6	2.64350E-6
ω	-1.25578E-8	5.47918E-8	7.38163E-7	5.52118E-6	1.08528E-6	1.20655E-7
M	-5.66970E-9	2.72364E-8	3.59512E-7	2.64350E-6	1.20655E-7	5.42726E-7

Date of computation: 2026-03-27 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

27.44

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

9 - 19*

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

0.515986

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-03-08.381296

Unit

Source

[2]

Last Observation

Value

2026-03-26.154345

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

51 (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

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 2026FJ 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	1950-07-22 05:12	> 1 w	0.1051191	0.1013789	0.0012645
EARTH	1951-03-05 18:25	> 1 w	0.0557763	0.0269332	0.0104625
EARTH	1951-05-05 01:14	> 1 mo	0.0661540	0.0225002	0.0145514
EARTH	1952-04-04 12:48	818.6	0.0701468	0.0079838	0.0251398
EARTH	1988-11-08 10:56	126.8	0.1320560	0.1308612	0.0003983
EARTH	1989-11-04 15:01	220.4	0.0203093	0.0195892	0.0002445
EARTH	1990-08-05 18:39	> 1 d	0.1046841	0.1040890	0.0001986
EARTH	1991-02-09 15:06	> 1 d	0.0669675	0.0651787	0.0005985
EARTH	1991-05-26 07:35	> 1 d	0.0845294	0.0820174	0.0008374
EARTH	1992-03-31 09:30	66.0	0.0652188	0.0572897	0.0026460
EARTH	2023-11-04 22:04	3.0	0.0403491	0.0402669	0.0000274
EARTH	2024-09-03 00:16	97.7	0.0881205	0.0879076	0.0000710
EARTH	2025-01-04 04:42	57.0	0.0722634	0.0720987	0.0000549
EARTH	2025-07-01 06:22	45.1	0.1032682	0.1030793	0.0000630
EARTH	2026-03-31 08:37	< 1 min	0.0198268	0.0197878	0.0000130
EARTH	2027-03-31 06:03	2.7	0.0954015	0.0950677	0.0001113
EARTH	2070-11-02 19:44	130.4	0.1610737	0.1479329	0.0043818
EARTH	2071-10-29 17:52	164.5	0.0415503	0.0298517	0.0040002
EARTH	2072-10-04 19:20	> 1 d	0.0566763	0.0539917	0.0008977
EARTH	2072-11-20 17:47	> 1 d	0.0538641	0.0512803	0.0008631
EARTH	2073-08-03 15:41	> 1 d	0.0975736	0.0960045	0.0005250
EARTH	2074-01-19 03:37	> 1 d	0.0782380	0.0765130	0.0005760
EARTH	2074-06-19 01:42	> 1 d	0.0953925	0.0936376	0.0005882
EARTH	2075-03-23 17:28	> 1 d	0.0371710	0.0191526	0.0062136
EARTH	2076-03-30 06:42	750.6	0.0487361	0.0315809	0.0057869
EARTH	2077-03-27 04:19	467.7	0.1549193	0.1496598	0.0017535
EARTH	2125-10-29 01:44	> 1 d	0.0955391	0.0135571	0.1864174
EARTH	2126-10-26 02:19	243.9	0.0145166	0.0131694	0.0659307

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
260.13222879	86.33382897	0.00871634	MINIMUM
93.70906684	290.10933448	0.01360949	MINIMUM
176.82213307	8.22034359	0.07823910	SADDLE
356.83502113	188.03978134	0.10213896	SADDLE
357.75623011	9.04437948	1.89895310	SADDLE
178.04706442	189.33619059	2.07740938	MAXIMUM

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MOID Plots

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