Asteroids

2026BJ1 help

Last update: 2026-01-26 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.656

Aphelion (Q)

1.991

Eccentricity (e)

0.505

Inclination (i)

25.9

deg

Orbit period (P)

556.0

Earth MOID

0.02449

U parameter

8.5

Next Earth close approach

Date

2041-07-29

Nominal distance (from Earth center)

0.05741

8588074

Maximum Brightness

21.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.5

mag

Diameter

50 - 120*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-17

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.323291

1-sigma variation

0.002074

Unit

Eccentricity (e)

Value

0.504539

1-sigma variation

0.000896

Unit

Inclination (i)

Value

25.8523

1-sigma variation

0.0415

Unit

Long. of Ascending Node (Ω)

Value

124.7403

1-sigma variation

0.0026

Unit

Arg. of Perihelion (ω)

Value

94.1245

1-sigma variation

0.0394

Unit

Mean Anomaly (M)

Value

281.44007

1-sigma variation

0.21730

Unit

Perihelion distance

Value

0.655640

1-sigma variation

Unit

Aphelion distance

Value

1.990942

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.038705

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.064838

1-sigma variation

Unit

MOID

Value

0.024494

1-sigma variation

Unit

Orbit Period

Value

556.0085

1-sigma variation

Unit

U parameter

Value

8.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.30150E-6	1.85791E-6	8.61594E-5	5.41435E-6	-8.17157E-5	4.50692E-4
e	1.85791E-6	8.02470E-7	3.72141E-5	2.33857E-6	-3.52943E-5	1.94663E-4
i	8.61594E-5	3.72141E-5	1.72578E-3	1.08450E-4	-1.63676E-3	9.02740E-3
Ω	5.41435E-6	2.33857E-6	1.08450E-4	6.81513E-6	-1.02856E-4	5.67292E-4
ω	-8.17157E-5	-3.52943E-5	-1.63676E-3	-1.02856E-4	1.55240E-3	-8.56181E-3
M	4.50692E-4	1.94663E-4	9.02740E-3	5.67292E-4	-8.56181E-3	4.72216E-2

Date of computation: 2026-01-26 12:45 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

23.459

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

50 - 120*

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

0.526537

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-17.321777

Unit

Source

[2]

Last Observation

Value

2026-01-25.443069

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

80 (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

Close Approaches for 2026BJ1 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	1956-01-19 20:18	> 1 w	0.1892174	0.0175372	0.2932293
EARTH	1959-01-31 05:07	> 1 w	0.0970013	0.0208410	0.3878003
EARTH	1971-07-29 03:55	> 1 mo	0.0697977	0.0398904	0.5603633
EARTH	1991-01-26 07:21	> 1 mo	0.0373889	0.0230557	0.6967941
EARTH	2006-08-01 12:23	> 1 w	0.0425666	0.0417926	0.0516242
EARTH	2026-01-26 10:47	< 1 s	0.0329740	0.0328149	0.0000530
EARTH	2041-07-29 22:38	> 1 w	0.0574077	0.0440281	0.1362895
EARTH	2061-01-19 20:19	> 1 w	0.1787822	0.0221750	0.4993193
EARTH	2064-01-30 19:00	> 1 w	0.0784623	0.0251163	0.5164218
EARTH	2079-08-03 23:21	> 1 w	0.0652298	0.0453948	0.3093932
EARTH	2099-01-26 16:55	> 1 w	0.0372749	0.0273221	0.1524997
EARTH	2114-07-29 11:57	966.8	0.0837427	0.0707100	0.0054574
EARTH	2117-08-10 18:48	> 1 d	0.1746321	0.0900206	0.0306108

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
298.88436227	25.26145346	0.02449358	MINIMUM
59.82074696	207.74604609	0.04326266	MINIMUM
359.53781878	115.59957927	0.50625170	SADDLE
179.37449825	298.10648852	1.17906985	SADDLE
1.14379038	298.77206385	1.60848372	SADDLE
181.42171011	119.41214971	2.93267659	MAXIMUM

Download:

MOID Plots

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