Asteroids

2023BL1 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.839

Aphelion (Q)

3.098

Eccentricity (e)

0.574

Inclination (i)

11.6

deg

Orbit period (P)

1008.5

Earth MOID

0.00176

U parameter

7.0

Next Earth close approach

Date

2045-05-18

Nominal distance (from Earth center)

0.18992

28412002

Maximum Brightness

25.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.1

mag

Diameter

16 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-01-18

Observatory

Pan-STARRS 2, Haleakala

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

1.968136

1-sigma variation

0.000573

Unit

Eccentricity (e)

Value

0.573897

1-sigma variation

0.000135

Unit

Inclination (i)

Value

11.5854

1-sigma variation

0.0023

Unit

Long. of Ascending Node (Ω)

Value

304.8316

1-sigma variation

4.987E-5

Unit

Arg. of Perihelion (ω)

Value

234.1915

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

66.02555

1-sigma variation

0.18554

Unit

Perihelion distance

Value

0.838628

1-sigma variation

Unit

Aphelion distance

Value

3.097643

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.971529

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.003574

1-sigma variation

Unit

MOID

Value

0.001764

1-sigma variation

Unit

Orbit Period

Value

1008.5117

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.28597E-7	7.73874E-8	1.29366E-6	2.85029E-8	-2.01790E-7	-1.06356E-4
e	7.73874E-8	1.82254E-8	3.04666E-7	6.71235E-9	-4.75166E-8	-2.50477E-5
i	1.29366E-6	3.04666E-7	5.09335E-6	1.12246E-7	-7.94601E-7	-4.18713E-4
Ω	2.85029E-8	6.71235E-9	1.12246E-7	2.48683E-9	-1.76023E-8	-9.22545E-6
ω	-2.01790E-7	-4.75166E-8	-7.94601E-7	-1.76023E-8	1.26086E-7	6.53123E-5
M	-1.06356E-4	-2.50477E-5	-4.18713E-4	-9.22545E-6	6.53123E-5	3.44239E-2

Date of computation: 2026-03-17 23:26 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

26.142

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

16 - 40*

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

1180

Unit

Source

[1]

Normalized RMS of residuals

Value

0.335534

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-01-18.370521

Unit

Source

[2]

Last Observation

Value

2023-01-25.285609

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

95 (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 2023BL1 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	1976-02-05 18:40	> 1 w	0.0892900	0.0088327	0.1039108
EARTH	2023-01-25 19:36	< 1 s	0.0015018	0.0015009	0.0000003
EARTH	2045-05-18 16:42	> 1 d	0.1899225	0.1875078	0.0082990
EARTH	2070-01-16 18:35	> 1 d	0.1176416	0.0001433	0.1125640
EARTH	2081-02-22 09:47	> 1 w	0.1686959	0.0511556	0.0518450
EARTH	2092-05-23 05:48	> 1 d	0.1836932	0.1834780	0.0028078
EARTH	2117-01-15 18:29	> 1 d	0.1491078	0.0017086	0.0879052

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
330.42852867	23.51416642	0.00151973	MINIMUM
34.63500399	139.40664027	0.18763285	MINIMUM
9.63230050	94.58826437	0.23145558	SADDLE
2.49964306	260.80256428	1.83616579	SADDLE
181.19120867	258.09212757	2.11277350	SADDLE
180.05675716	77.49473806	4.08411943	MAXIMUM

Download:

MOID Plots

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