Asteroids

2026BT3 help

Last update: 2026-01-22 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.969

Aphelion (Q)

3.762

Eccentricity (e)

0.590

Inclination (i)

0.6

deg

Orbit period (P)

1328.9

Earth MOID

0.01030

U parameter

7.3

Next Earth close approach

Date

2036-11-24

Nominal distance (from Earth center)

0.05671

8483226

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.1

mag

Diameter

10 - 23*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-20

Observatory

JPL SynTrack Robotic Telescope, Auberry

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

2.365492

1-sigma variation

0.001497

Unit

Eccentricity (e)

Value

0.590246

1-sigma variation

0.000261

Unit

Inclination (i)

Value

0.6437

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

1.8437

1-sigma variation

0.0117

Unit

Arg. of Perihelion (ω)

Value

95.6064

1-sigma variation

0.0119

Unit

Mean Anomaly (M)

Value

348.44547

1-sigma variation

0.01074

Unit

Perihelion distance

Value

0.969270

1-sigma variation

Unit

Aphelion distance

Value

3.761713

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.633153

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.458946

1-sigma variation

Unit

MOID

Value

0.010297

1-sigma variation

Unit

Orbit Period

Value

1328.8643

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.24061E-6	3.90950E-7	4.02475E-7	-4.41788E-6	3.35211E-6	1.60727E-5
e	3.90950E-7	6.82146E-8	7.01929E-8	-7.65781E-7	5.79617E-7	2.80446E-6
i	4.02475E-7	7.01929E-8	7.75363E-8	-1.61364E-6	1.45027E-6	2.88152E-6
Ω	-4.41788E-6	-7.65781E-7	-1.61364E-6	1.37168E-4	-1.39471E-4	-3.08160E-5
ω	3.35211E-6	5.79617E-7	1.45027E-6	-1.39471E-4	1.42460E-4	2.31352E-5
M	1.60727E-5	2.80446E-6	2.88152E-6	-3.08160E-5	2.31352E-5	1.15302E-4

Date of computation: 2026-01-22 13:00 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

27.073

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

10 - 23*

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

0.65791

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-19.329686

Unit

Source

[2]

Last Observation

Value

2026-01-21.514699

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

64 (6)

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 100 points and a final date not exceeding 2080/07/22 14:12.

Close Approaches for 2026BT3 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	1957-02-01 19:01	> 1 mo	0.0628562	0.0101967	1.2004893
EARTH	1997-01-08 19:16	> 1 mo	0.0259394	0.0096423	0.0488672
EARTH	2026-01-18 07:20	< 1 min	0.0137219	0.0137055	0.0000055
EARTH	2036-11-24 14:11	> 1 w	0.0567069	0.0113622	0.0553842
EARTH	2066-02-09 00:02	> 1 w	0.1142336	0.0088090	0.1327417
EARTH	2077-01-09 09:45	> 1 mo	0.0116339	0.0100480	0.0187014
EARTH	2117-01-26 07:01	> 1 mo	0.0327325	0.0093472	0.4413838
MARS	2120-06-15 16:45	> 1 w	0.0446670	0.0328968	0.0838313

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
8.41906872	12.43160084	0.01029679	MINIMUM
351.45236499	339.74010543	0.01091055	MINIMUM
359.83689379	355.89641255	0.01803667	SADDLE
359.90074046	176.02242394	1.98736581	SADDLE
179.97477888	176.11475910	2.74367391	SADDLE
179.97619410	356.11610015	4.74524750	MAXIMUM

Download:

MOID Plots

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