Asteroids

2023BU7 help

Last update: 2024-04-25 01:36 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.982

Aphelion (Q)

1.096

Eccentricity (e)

0.055

Inclination (i)

0.9

deg

Orbit period (P)

386.7

Earth MOID

0.00445

U parameter

6.8

Next Earth close approach

Date

2041-01-24

Nominal distance (from Earth center)

0.00638

954654

Maximum Brightness

23.4

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

30.6

mag

Diameter

2.0 - 5*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-01-28

Observatory

Kitt Peak-Bok

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.038720

1-sigma variation

0.000102

Unit

Eccentricity (e)

Value

0.054796

1-sigma variation

0.000095

Unit

Inclination (i)

Value

0.9148

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

329.0565

1-sigma variation

0.0617

Unit

Arg. of Perihelion (ω)

Value

178.6620

1-sigma variation

0.0140

Unit

Mean Anomaly (M)

Value

20.57111

1-sigma variation

0.10001

Unit

Perihelion distance

Value

0.981802

1-sigma variation

Unit

Aphelion distance

Value

1.095637

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.084580

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.006159

1-sigma variation

Unit

MOID

Value

0.004453

1-sigma variation

Unit

Orbit Period

Value

386.6749

1-sigma variation

Unit

U parameter

Value

6.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.03560E-8	9.62109E-9	-1.92007E-7	6.28018E-6	-1.42296E-6	-1.01773E-5
e	9.62109E-9	8.93833E-9	-1.78381E-7	5.83450E-6	-1.32197E-6	-9.45508E-6
i	-1.92007E-7	-1.78381E-7	3.56059E-6	-1.16458E-4	2.64031E-5	1.88693E-4
Ω	6.28018E-6	5.83450E-6	-1.16458E-4	3.80904E-3	-8.63524E-4	-6.17178E-3
ω	-1.42296E-6	-1.32197E-6	2.64031E-5	-8.63524E-4	1.96168E-4	1.39836E-3
M	-1.01773E-5	-9.45508E-6	1.88693E-4	-6.17178E-3	1.39836E-3	1.00017E-2

Date of computation: 2024-04-23 10:08 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

30.582

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

2.0 - 5*

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

[-]

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Sources

No.	Name	Additional
[1]	ESA ODIM	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

444

Unit

Source

[1]

Normalized RMS of residuals

Value

0.324962

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-01-28.225024

Unit

Source

[2]

Last Observation

Value

2023-02-05.882214

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

21 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2023BU7 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1960-01-21 23:50	> 1 mo	0.0519027	0.0017258	9.0970622
EARTH	1960-06-18 08:07	> 1 mo	0.0743423	0.0404924	3.9018018
EARTH	1973-09-12 23:44	> 1 mo	0.1087259	0.1055708	0.3179924
EARTH	1986-12-21 02:27	> 1 mo	0.0572833	0.0118251	0.1231631
EARTH	1987-04-08 11:15	> 1 mo	0.0250665	0.0132753	0.1388659
EARTH	1998-01-28 12:43	1378.2	0.0355181	0.0143730	0.0070794
EARTH	1998-06-05 16:23	> 1 w	0.0671817	0.0554501	0.0040580
EARTH	2010-09-22 17:07	> 1 w	0.1154946	0.1144907	0.0003392
EARTH	2023-02-08 02:13	2.1	0.0033053	0.0032971	0.0000027
EARTH	2041-01-24 09:21	> 1 d	0.0063815	0.0041506	0.0103736
EARTH	2042-01-13 18:35	> 1 mo	0.0097267	0.0096956	0.0090914
EARTH	2042-08-19 11:57	> 1 mo	0.0561694	0.0214827	2.1432468
EARTH	2085-07-28 10:38	> 1 mo	0.0961541	0.0047040	38.3842589
EARTH	2086-07-11 01:59	> 1 mo	0.0014135	0.0001599	13.0874501
EARTH	2096-03-23 14:34	> 1 mo	0.0835820	0.0120522	793.5458315
EARTH	2096-08-02 01:46	> 1 mo	0.0604260	0.0075086	1593.3003322
EARTH	2105-06-03 16:21	> 1 mo	0.1700548	0.0020897	5407.3310907
EARTH	2105-11-27 04:56	> 1 mo	0.1188409	0.0388332	908.5293962
EARTH	2115-03-14 21:18	> 1 mo	0.0944503	0.0061020	4045.5740210
EARTH	2115-08-03 13:10	> 1 mo	0.0827683	0.0027950	10060.6695279
EARTH	2124-06-02 08:40	> 1 mo	0.0495019	0.0018475	11189.2681601
EARTH	2124-10-03 10:40	> 1 mo	0.0781027	0.0070448	6545.0151287

Download as:

2023BU7

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2074-12-15.522	78921.522	1.928	8.00 ± 0.116	6.80E5	1.94E-6	5.80E-10	-8.71
2085-07-09.809	82780.809	0.141	5.53 ± 0.028	2.67E4	3.11E-4	9.26E-8	-6.59
2085-12-27.399	82951.399	0.529	7.25 ± 0.000	1.88E9	2.74E-9	8.16E-13	-11.65
2087-07-10.753	83511.753	0.004	5.30 ± 0.000	9.61E6	8.18E-7	2.44E-10	-9.19
2090-01-31.581	84447.581	-4.017	9.50 ± 0.000	1.48E6	8.37E-10	2.50E-13	-12.19
2091-01-01.359	84782.359	-2.827	10.60 ± 0.089	8.34E7	1.99E-9	5.94E-13	-11.82
2094-10-31.288	86181.288	0.762	3.76 ± 4.049	8.79E8	5.69E-9	1.70E-12	-11.39
2094-11-01.941	86182.941	1.252	4.59 ± 0.419	5.13E5	6.65E-6	1.98E-9	-8.32
2097-01-24.189	86997.189	-1.033	11.19 ± 0.022	4.26E6	1.06E-6	3.17E-10	-9.13
2101-01-25.245	88458.245	-0.705	10.49 ± 0.039	3.93E6	7.26E-7	2.17E-10	-9.32
2101-01-25.252	88458.252	-0.705	3.81 ± 0.000	2.51E7	2.39E-7	7.13E-11	-9.80
2101-01-25.737	88458.737	-0.645	3.55 ± 0.000	6.12E7	1.12E-7	3.34E-11	-10.13
2104-01-16.040	89544.040	-1.165	10.02 ± 0.000	3.39E8	4.33E-9	1.29E-12	-11.57
2105-01-09.728	89903.728	-0.504	10.85 ± 0.086	1.16E6	6.11E-6	1.82E-9	-8.43
2105-12-26.359	90254.359	1.759	8.00 ± 0.043	3.99E6	3.14E-7	9.37E-11	-9.72
2107-01-29.427	90653.427	-1.490	4.11 ± 0.000	3.86E8	7.35E-9	2.19E-12	-11.36
2111-01-06.556	92091.556	1.459	7.03 ± 8.098	2.42E9	6.28E-10	1.87E-13	-12.44
2111-01-28.434	92113.434	-1.343	1.73 ± 0.000	5.54E9	6.05E-10	1.80E-13	-12.46
2119-12-23.224	95364.224	1.716	5.93 ± 0.000	4.60E8	3.57E-9	1.06E-12	-11.73
2120-12-20.186	95727.186	1.796	8.65 ± 0.253	1.09E8	9.83E-9	2.93E-12	-11.30


Based on 21 optical observations (of which 0 are rejected as outliers) from 2023/01/28.225 to 2023/02/05.882.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 10.37 and 10.67 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20240110 090432.190 UTC.

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