Asteroids

2000SB45 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.941

Aphelion (Q)

2.180

Eccentricity (e)

0.397

Inclination (i)

3.7

deg

Orbit period (P)

711.8

Earth MOID

0.00087

U parameter

9.0

Next Earth close approach

Date

2037-11-13

Nominal distance (from Earth center)

0.06087

9106690

Maximum Brightness

25.9

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.9

mag

Diameter

27 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2000-09-27

Observatory

Lincoln Laboratory ETS, New Mexico

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.560163

1-sigma variation

0.005498

Unit

Eccentricity (e)

Value

0.397104

1-sigma variation

0.002268

Unit

Inclination (i)

Value

3.6778

1-sigma variation

0.0178

Unit

Long. of Ascending Node (Ω)

Value

195.4209

1-sigma variation

0.0068

Unit

Arg. of Perihelion (ω)

Value

216.5858

1-sigma variation

0.0155

Unit

Mean Anomaly (M)

Value

205.24872

1-sigma variation

24.28940

Unit

Perihelion distance

Value

0.940616

1-sigma variation

Unit

Aphelion distance

Value

2.179710

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.928768

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.002392

1-sigma variation

Unit

MOID

Value

0.000869

1-sigma variation

Unit

Orbit Period

Value

711.7924

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.02323E-5	1.24708E-5	9.76091E-5	3.68683E-5	-8.02475E-5	-1.33553E-1
e	1.24708E-5	5.14431E-6	4.02687E-5	1.51985E-5	-3.30502E-5	-5.50905E-2
i	9.76091E-5	4.02687E-5	3.15398E-4	1.18534E-4	-2.56567E-4	-4.31194E-1
Ω	3.68683E-5	1.51985E-5	1.18534E-4	4.59592E-5	-1.02780E-4	-1.62866E-1
ω	-8.02475E-5	-3.30502E-5	-2.56567E-4	-1.02780E-4	2.39051E-4	3.54491E-1
M	-1.33553E-1	-5.50905E-2	-4.31194E-1	-1.62866E-1	3.54491E-1	5.89977E2

Date of computation: 2025-07-29 02:36 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

24.93

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

27 - 60*

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 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

9073

Unit

Source

[1]

Normalized RMS of residuals

Value

0.545568

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-09-27.27345

Unit

Source

[2]

Last Observation

Value

2000-09-29.84786

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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 2000SB45 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1954-01-05 05:24	> 1 mo	0.1980461	0.0628617	1.3077125
EARTH	1955-11-20 21:27	> 1 mo	0.0610295	0.0609694	0.0094575
EARTH	1957-09-21 10:39	> 1 mo	0.1159072	0.0075645	1.5723973
EARTH	1998-12-17 13:34	> 1 w	0.0608507	0.0578948	0.0179577
EARTH	2000-10-02 16:16	< 1 min	0.0237399	0.0233579	0.0001274
EARTH	2037-11-13 08:59	> 1 mo	0.0608745	0.0557873	0.1405957
EARTH	2039-09-17 13:18	> 1 mo	0.1824426	0.0091617	1.0690278
EARTH	2074-12-28 07:35	> 1 mo	0.0979824	0.0604939	0.9790304
EARTH	2076-10-07 04:06	> 1 mo	0.0038092	0.0003671	1.0654806
EARTH	2095-11-29 22:00	> 1 mo	0.0655869	0.0644944	63.4340866
EARTH	2115-01-04 08:19	> 1 mo	0.1255707	0.0638159	1299.6852132

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
334.99308536	273.40131330	0.00086942	MINIMUM
18.39384658	337.77908209	0.05788481	MINIMUM
4.41032670	317.09480872	0.06224082	SADDLE
179.44692069	129.01882645	1.17081504	SADDLE
358.29997895	127.92627266	1.95041647	SADDLE
179.15476321	308.83299788	3.16877653	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2000SB45

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2074-10-08.746	78853.746	0.124	1.04 ± 0.042	2.48E5	5.37E-6	1.54E-5	-5.09
2078-10-08.646	80314.646	0.747	1.66 ± 0.008	3.35E6	1.22E-7	3.56E-7	-6.75
2078-10-08.681	80314.681	0.349	0.80 ± 0.071	6.30E5	2.00E-6	5.78E-6	-5.54
2079-10-08.933	80679.933	-1.961	0.47 ± 0.061	5.73E5	3.55E-7	9.38E-7	-6.33
2080-10-08.248	81045.248	0.258	0.23 ± 0.032	8.83E4	1.55E-5	4.46E-5	-4.67
2080-10-08.289	81045.289	-0.362	1.53 ± 0.010	1.93E6	3.64E-7	1.02E-6	-6.31
2080-10-08.295	81045.295	-0.078	1.06 ± 0.009	5.45E5	2.12E-6	6.02E-6	-5.54
2081-10-08.340	81410.340	2.486	0.19 ± 0.045	4.60E6	1.39E-8	4.37E-8	-7.69
2081-10-08.436	81410.436	2.540	0.62 ± 0.008	2.37E4	2.22E-6	6.99E-6	-5.49
2082-10-08.661	81775.661	-0.085	1.30 ± 0.008	9.14E5	1.07E-6	3.03E-6	-5.85
2082-10-08.665	81775.665	0.546	1.56 ± 0.025	3.29E5	2.99E-6	8.70E-6	-5.40
2082-10-08.678	81775.678	0.742	0.73 ± 0.010	1.25E6	7.90E-7	2.32E-6	-5.97
2083-10-08.886	82140.886	2.598	1.21 ± 0.026	2.54E4	1.66E-6	5.23E-6	-5.63
2084-10-08.076	82506.076	-1.858	1.54 ± 0.027	2.31E7	9.73E-9	2.58E-8	-7.93
2084-10-08.101	82506.101	-0.109	1.72 ± 0.253	1.07E8	6.22E-9	1.76E-8	-8.10
2084-10-08.210	82506.210	0.474	0.16 ± 0.012	6.38E4	1.99E-5	5.76E-5	-4.59
2084-10-08.232	82506.232	0.182	0.87 ± 0.012	6.72E5	1.85E-6	5.31E-6	-5.62
2085-10-08.464	82871.464	-1.510	0.56 ± 0.073	2.12E4	2.15E-5	5.77E-5	-4.59
2086-10-08.615	83236.615	-2.408	1.02 ± 0.009	1.35E6	4.89E-8	1.27E-7	-7.25
2086-10-08.652	83236.652	0.473	0.72 ± 0.011	1.65E6	7.11E-7	2.06E-6	-6.05
2087-10-08.835	83601.835	-2.397	0.13 ± 0.016	1.92E7	4.23E-9	1.10E-8	-8.32
2087-10-08.856	83601.856	-1.644	0.35 ± 0.011	2.30E6	1.59E-7	4.24E-7	-6.73
2087-10-08.881	83601.881	-1.060	1.02 ± 0.007	9.65E5	6.98E-7	1.91E-6	-6.08
2088-10-08.110	83967.110	0.172	0.94 ± 0.010	1.28E6	9.28E-7	2.66E-6	-5.95
2088-10-08.127	83967.127	0.673	1.37 ± 0.008	5.32E4	1.36E-5	3.99E-5	-4.78
2088-10-08.131	83967.131	0.900	1.15 ± 0.007	6.71E5	1.08E-6	3.18E-6	-5.87
2088-10-08.162	83967.162	0.404	0.87 ± 0.066	3.31E5	3.87E-6	1.12E-5	-5.33
2091-10-09.008	85063.008	-0.859	1.71 ± 0.006	1.56E6	1.95E-7	5.36E-7	-6.66
2091-10-09.062	85063.062	-1.089	0.21 ± 0.025	2.59E5	3.04E-6	8.29E-6	-5.47
2093-10-08.427	85793.427	-1.218	1.54 ± 0.013	8.14E5	5.39E-7	1.47E-6	-6.24
2093-10-08.453	85793.453	-4.208	1.75 ± 0.012	4.26E5	1.33E-10	3.23E-10	-9.88
2093-10-08.461	85793.461	-0.867	0.13 ± 0.000	5.08E6	1.93E-7	5.31E-7	-6.68
2094-10-08.592	86158.592	1.471	1.46 ± 0.032	1.34E8	3.51E-9	1.06E-8	-8.39
2094-10-08.612	86158.612	-0.681	1.66 ± 0.045	8.54E6	1.29E-7	3.58E-7	-6.85
2096-10-08.178	86889.178	-2.841	0.67 ± 0.047	2.21E4	1.09E-6	2.79E-6	-5.97
2096-10-08.197	86889.197	-2.476	1.73 ± 0.029	2.76E5	2.34E-7	6.08E-7	-6.63
2097-10-08.531	87254.531	-0.288	0.75 ± 0.018	3.33E6	3.74E-7	1.05E-6	-6.41
2097-10-08.556	87254.556	-0.587	0.47 ± 0.015	1.78E6	6.54E-7	1.82E-6	-6.17
2099-10-08.975	87984.975	-0.238	1.36 ± 0.011	2.78E6	3.34E-7	9.43E-7	-6.46
2099-10-08.982	87984.982	-0.286	0.75 ± 0.056	8.90E5	1.51E-6	4.26E-6	-5.81
2099-10-08.998	87984.998	-0.541	0.74 ± 0.010	2.66E5	4.27E-6	1.19E-5	-5.36
2099-10-09.010	87985.010	-0.573	0.75 ± 0.059	2.42E5	4.74E-6	1.32E-5	-5.32
2099-10-09.024	87985.024	-0.405	0.46 ± 0.007	9.22E5	1.38E-6	3.87E-6	-5.85
2099-10-09.044	87985.044	-0.993	0.93 ± 0.008	1.84E6	4.07E-7	1.12E-6	-6.39
2099-10-09.051	87985.051	-0.729	0.12 ± 0.000	7.30E7	1.50E-8	4.15E-8	-7.82
2099-10-09.077	87985.077	-0.133	1.59 ± 0.000	1.57E7	4.31E-8	1.22E-7	-7.35
2100-10-09.101	88350.101	-1.906	1.52 ± 0.004	1.65E6	7.80E-8	2.06E-7	-7.12
2101-10-09.292	88715.292	-0.380	0.90 ± 0.000	1.96E8	6.23E-9	1.75E-8	-8.21
2101-10-09.396	88715.396	-0.242	1.25 ± 0.007	1.08E6	9.13E-7	2.58E-6	-6.04
2101-10-09.419	88715.419	-0.129	1.54 ± 0.008	1.74E6	4.15E-7	1.18E-6	-6.38
2105-10-09.494	90176.494	-0.616	0.58 ± 0.019	6.02E5	1.87E-6	5.19E-6	-5.75
2106-10-09.730	90541.730	-1.450	0.94 ± 0.004	1.31E6	3.25E-7	8.77E-7	-6.53
2107-10-10.047	90907.047	-0.610	1.56 ± 0.010	1.41E6	4.10E-7	1.14E-6	-6.42
2112-10-09.222	92733.222	-1.721	0.22 ± 0.007	2.48E5	1.31E-6	3.49E-6	-5.96
2112-10-09.292	92733.292	-1.481	1.29 ± 0.010	6.99E5	4.80E-7	1.29E-6	-6.39
2112-10-09.312	92733.312	-1.493	1.28 ± 0.031	3.27E5	1.22E-6	3.28E-6	-5.99
2113-10-09.493	93098.493	-1.411	1.77 ± 0.000	9.35E6	1.08E-8	2.91E-8	-8.04
2113-10-09.503	93098.503	-0.655	1.26 ± 0.012	2.00E6	4.15E-7	1.15E-6	-6.45


Based on 18 optical observations (of which 0 are rejected as outliers) from 2000/09/27.273 to 2000/09/29.848.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.78 and 1.80 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20250305 091342.803 UTC.

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