Asteroids

2026BQ4 help

Last update: 2026-02-10 13:02 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.328

Aphelion (Q)

1.039

Eccentricity (e)

0.520

Inclination (i)

12.8

deg

Orbit period (P)

206.4

Earth MOID

0.02870

U parameter

7.4

Next Earth close approach

Date

2030-02-16

Nominal distance (from Earth center)

0.09264

13858183

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.3

mag

Diameter

40 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-20

Observatory

ATLAS South Africa, Sutherland

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

0.683419

1-sigma variation

0.000090

Unit

Eccentricity (e)

Value

0.519994

1-sigma variation

0.000256

Unit

Inclination (i)

Value

12.8438

1-sigma variation

0.0119

Unit

Long. of Ascending Node (Ω)

Value

126.5914

1-sigma variation

0.0014

Unit

Arg. of Perihelion (ω)

Value

189.0314

1-sigma variation

0.0006

Unit

Mean Anomaly (M)

Value

35.28150

1-sigma variation

0.03440

Unit

Perihelion distance

Value

0.328045

1-sigma variation

Unit

Aphelion distance

Value

1.038793

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.039850

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.687005

1-sigma variation

Unit

MOID

Value

0.028696

1-sigma variation

Unit

Orbit Period

Value

206.3616

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.06434E-9	-2.29744E-8	-1.06859E-6	1.24024E-7	5.52035E-8	3.08870E-6
e	-2.29744E-8	6.54519E-8	3.04430E-6	-3.53332E-7	-1.57248E-7	-8.79944E-6
i	-1.06859E-6	3.04430E-6	1.41600E-4	-1.64348E-5	-7.31415E-6	-4.09278E-4
Ω	1.24024E-7	-3.53332E-7	-1.64348E-5	1.90760E-6	8.48802E-7	4.75022E-5
ω	5.52035E-8	-1.57248E-7	-7.31415E-6	8.48802E-7	3.80549E-7	2.11356E-5
M	3.08870E-6	-8.79944E-6	-4.09278E-4	4.75022E-5	2.11356E-5	1.18302E-3

Date of computation: 2026-02-10 13:02 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

24.341

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

40 - 80*

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

0.547886

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-20.907065

Unit

Source

[2]

Last Observation

Value

2026-02-09.087087

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

72 (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

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 2026BQ4 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	1952-01-21 08:16	> 1 d	0.0305243	0.0303984	0.0019676
EARTH	1956-02-15 17:49	> 1 d	0.0859739	0.0790549	0.0084219
EARTH	1961-01-16 12:08	796.4	0.1852481	0.0927672	0.0319212
MERCURY	1963-09-19 10:30	> 1 d	0.0245150	0.0241231	0.0118935
EARTH	1965-01-23 11:06	> 1 d	0.0347840	0.0313382	0.0091460
EARTH	1969-02-17 18:23	> 1 d	0.0985421	0.0846969	0.0148953
EARTH	1974-01-16 06:30	431.9	0.1435186	0.0443934	0.0393567
EARTH	1978-01-28 20:16	> 1 d	0.0503333	0.0399086	0.0139108
MERCURY	1980-02-05 08:36	> 1 d	0.0381909	0.0248978	0.0707799
EARTH	1982-02-20 13:04	> 1 d	0.1259842	0.0920061	0.0276002
EARTH	1987-01-16 17:08	885.8	0.0911872	0.0369516	0.0391400
EARTH	1991-02-04 23:58	> 1 d	0.0660183	0.0589942	0.0095152
EARTH	1995-02-21 19:06	293.6	0.1650098	0.0992160	0.0322991
MERCURY	1996-06-22 09:16	> 1 d	0.0408258	0.0250994	0.0668342
EARTH	2000-01-18 11:19	> 1 d	0.0500003	0.0320653	0.0237891
EARTH	2004-02-10 21:01	> 1 d	0.0757266	0.0712141	0.0055424
MERCURY	2011-02-28 06:49	> 1 d	0.0299790	0.0249729	0.0177846
EARTH	2013-01-19 21:19	1280.3	0.0311363	0.0294438	0.0032859
EARTH	2017-02-13 22:35	1251.6	0.0837672	0.0790592	0.0021812
MERCURY	2025-11-05 23:03	65.6	0.0457712	0.0450558	0.0002435
EARTH	2026-01-22 08:00	< 1 s	0.0300054	0.0299483	0.0000190
EARTH	2030-02-16 19:39	403.8	0.0926362	0.0888758	0.0013614
EARTH	2035-01-17 01:29	167.7	0.1664745	0.1396620	0.0090014
EARTH	2039-01-26 08:38	> 1 d	0.0413729	0.0327997	0.0046393
MERCURY	2042-03-26 05:03	> 1 d	0.0248230	0.0248205	0.0003606
EARTH	2043-02-19 21:49	1075.8	0.1114599	0.0924362	0.0084448
EARTH	2048-01-16 23:31	63.7	0.1167910	0.0580376	0.0210230
EARTH	2052-02-01 21:42	> 1 d	0.0594908	0.0483940	0.0075797
EARTH	2056-02-22 00:11	677.1	0.1452315	0.0992506	0.0209255
MERCURY	2058-08-11 06:17	> 1 d	0.0251732	0.0249761	0.0080872
EARTH	2061-01-17 00:35	1325.0	0.0683449	0.0330235	0.0272054
EARTH	2065-02-07 12:49	> 1 d	0.0720921	0.0660599	0.0073379
EARTH	2069-02-21 16:33	129.0	0.1836982	0.1104441	0.0302620
EARTH	2074-01-19 07:02	> 1 d	0.0361796	0.0289608	0.0183257
MERCURY	2074-12-28 04:33	> 1 d	0.0383207	0.0257213	0.0593865
EARTH	2078-02-12 15:20	> 1 d	0.0811169	0.0757343	0.0087503
EARTH	2087-01-21 11:14	> 1 d	0.0277999	0.0277378	0.0022050
MERCURY	2089-09-05 13:59	> 1 d	0.0274078	0.0252916	0.0444499
EARTH	2091-02-15 13:56	> 1 d	0.0880434	0.0810223	0.0163630
EARTH	2096-01-18 00:13	> 1 d	0.1919534	0.0436600	0.0824105
EARTH	2100-01-23 19:57	> 1 w	0.0309267	0.0281245	0.0269399
EARTH	2104-02-19 08:48	> 1 w	0.0980796	0.0860987	0.0451065
MERCURY	2104-05-15 12:28	> 1 w	0.0290424	0.0256392	0.1184665
EARTH	2109-01-17 16:38	> 1 d	0.1530942	0.0401487	0.1584117
EARTH	2113-01-28 11:12	> 1 w	0.0461180	0.0343855	0.0699946
EARTH	2117-02-21 06:52	> 1 w	0.1198131	0.0928700	0.1137555
MERCURY	2120-10-01 09:36	> 1 w	0.0260895	0.0255564	0.0916963
EARTH	2122-01-17 20:18	> 1 d	0.1048672	0.0355710	0.2086584
EARTH	2126-02-03 22:02	> 1 mo	0.0633380	0.0522007	0.0656135

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
153.99241027	19.34671059	0.02869567	MINIMUM
358.03159262	212.31373654	0.68743457	SADDLE
357.79234138	31.82977115	1.31424401	SADDLE
178.82408835	212.91939929	2.05374777	MAXIMUM

Download:

MOID Plots

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