Asteroids

2007DX40 help

Last update: 2025-06-12 07:47 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.709

Aphelion (Q)

2.360

Eccentricity (e)

0.538

Inclination (i)

0.4

deg

Orbit period (P)

694.5

Earth MOID

0.00023

U parameter

9.0

Next Earth close approach

Date

2026-03-13

Nominal distance (from Earth center)

0.09777

14626912

Maximum Brightness

23.2

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.7

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2007-02-21

Observatory

Mt. Lemmon Survey

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

1.534770

1-sigma variation

0.005161

Unit

Eccentricity (e)

Value

0.537801

1-sigma variation

0.001949

Unit

Inclination (i)

Value

0.4424

1-sigma variation

0.0037

Unit

Long. of Ascending Node (Ω)

Value

326.5606

1-sigma variation

4.6816

Unit

Arg. of Perihelion (ω)

Value

277.1165

1-sigma variation

4.4773

Unit

Mean Anomaly (M)

Value

173.66000

1-sigma variation

17.06860

Unit

Perihelion distance

Value

0.709369

1-sigma variation

Unit

Aphelion distance

Value

2.360171

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.015001

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.175685

1-sigma variation

Unit

MOID

Value

0.000227

1-sigma variation

Unit

Orbit Period

Value

694.4859

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.66385E-5	1.00610E-5	1.92273E-5	-2.41630E-2	2.31083E-2	-8.80953E-2
e	1.00610E-5	3.79989E-6	7.26187E-6	-9.12601E-3	8.72767E-3	-3.32723E-2
i	1.92273E-5	7.26187E-6	1.38802E-5	-1.74405E-2	1.66792E-2	-6.35860E-2
Ω	-2.41630E-2	-9.12601E-3	-1.74405E-2	2.19175E1	-2.09609E1	7.99086E1
ω	2.31083E-2	8.72767E-3	1.66792E-2	-2.09609E1	2.00459E1	-7.64207E1
M	-8.80953E-2	-3.32723E-2	-6.35860E-2	7.99086E1	-7.64207E1	2.91337E2

Date of computation: 2025-06-12 07:47 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

24.715

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

30 - 70*

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

6704

Unit

Source

[1]

Normalized RMS of residuals

Value

0.582585

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2007-02-21.38963

Unit

Source

[2]

Last Observation

Value

2007-03-02.085188

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (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 2007DX40 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	1984-08-10 05:40	> 1 mo	0.0900691	0.0007404	1.1136602
EARTH	2003-08-19 08:24	> 1 d	0.0150283	0.0007160	0.0783522
MARS	2003-10-02 02:17	> 1 d	0.0410890	0.0406246	0.0101675
EARTH	2007-03-04 04:26	< 1 min	0.0198656	0.0197345	0.0000437
VENUS	2012-12-28 02:12	> 1 w	0.0290022	0.0265609	0.0334769
EARTH	2026-03-13 06:58	> 1 mo	0.0977749	0.0021257	0.5874096
VENUS	2033-11-29 14:28	> 1 mo	0.0271473	0.0254663	0.1554363
EARTH	2045-03-23 07:43	> 1 mo	0.1659241	0.0018107	1.7941221
EARTH	2064-03-23 00:31	> 1 mo	0.1653050	0.0007505	0.8397735
VENUS	2077-09-03 20:16	> 1 mo	0.0307573	0.0038114	1.8977933
EARTH	2083-03-30 15:47	> 1 mo	0.1930025	0.0019643	1.0208128
EARTH	2100-08-13 06:22	> 1 mo	0.0830615	0.0007965	8.4650961
MARS	2113-06-11 22:35	> 1 w	0.0467091	0.0438113	0.2159860
EARTH	2119-08-20 18:38	> 1 mo	0.0022803	0.0007065	2.3941892
MARS	2124-09-20 23:20	> 1 mo	0.0464865	0.0435613	158.2761364

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
50.68249445	223.72820828	0.00022730	MINIMUM
311.10120334	61.27850695	0.00230347	MINIMUM
1.26000138	142.93891925	0.30353157	SADDLE
180.37819777	321.89501742	1.37310974	SADDLE
1.23059027	322.90538748	1.69638015	SADDLE
180.38864136	141.90696779	3.37288740	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2007DX40

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2030-08-18.709	62731.709	4.754	0.000	0.26 ± 0.005	1.28E4	9.29E-10	3.90E-9	-7.80
2035-08-18.830	64557.830	-3.386	0.000	0.47 ± 0.004	6.83E4	4.31E-8	1.63E-7	-6.43
2036-03-05.795	64757.795	0.875	0.000	0.20 ± 0.046	1.64E7	4.03E-8	1.63E-7	-6.44
2037-08-18.755	65288.755	-2.232	0.000	0.40 ± 0.005	1.23E5	6.61E-7	2.54E-6	-5.30
2048-08-18.324	69306.324	0.243	0.000	0.49 ± 0.003	5.29E7	1.71E-8	6.78E-8	-7.15
2049-08-19.192	69672.192	3.381	0.000	1.21 ± 0.005	2.87E5	2.11E-9	8.68E-9	-8.07
2052-03-01.853	70597.853	-1.077	0.053	1.24 ± 4.084	2.41E6	4.05E-8	1.53E-7	-6.85
2052-08-18.226	70767.226	-0.911	0.000	0.63 ± 0.011	3.44E7	1.62E-8	6.32E-8	-7.25
2052-08-18.330	70767.330	0.240	0.000	1.00 ± 0.005	1.67E7	3.38E-8	1.34E-7	-6.92
2054-08-18.784	71497.784	0.239	0.000	0.96 ± 0.005	9.84E6	6.10E-8	2.42E-7	-6.69
2054-08-18.787	71497.787	0.185	0.000	1.16 ± 0.005	1.94E7	1.62E-8	6.40E-8	-7.27
2054-08-18.795	71497.795	-0.922	0.000	0.99 ± 0.004	5.92E6	6.52E-8	2.54E-7	-6.67
2054-08-18.889	71497.889	-3.085	0.000	0.71 ± 0.004	1.32E5	5.25E-8	1.99E-7	-6.77
2056-08-18.202	72228.202	-2.103	0.000	0.72 ± 0.005	5.15E3	2.09E-5	8.04E-5	-4.19
2056-08-18.220	72228.220	-2.068	0.000	0.58 ± 0.004	3.91E3	2.66E-5	1.02E-4	-4.09
2056-08-18.305	72228.305	0.235	0.000	0.83 ± 0.005	5.04E6	1.40E-7	5.53E-7	-6.36
2056-08-18.307	72228.307	0.187	0.000	1.02 ± 0.005	9.51E6	5.63E-8	2.23E-7	-6.75
2058-08-18.644	72958.644	-2.107	0.000	0.06 ± 0.005	4.83E6	2.21E-8	8.50E-8	-7.20
2058-08-18.784	72958.784	0.229	0.000	1.23 ± 0.005	1.97E6	3.23E-7	1.28E-6	-6.03
2058-08-18.788	72958.788	0.190	0.000	1.08 ± 0.005	3.35E6	1.41E-7	5.56E-7	-6.39
2058-08-19.031	72959.031	0.750	0.000	0.34 ± 0.013	1.91E7	3.78E-8	1.50E-7	-6.96
2058-08-19.629	72959.629	-1.624	0.000	0.31 ± 0.000	7.99E7	3.27E-9	1.27E-8	-8.03
2060-03-06.831	73524.831	-3.908	0.000	1.20 ± 0.114	7.71E6	1.44E-11	5.48E-11	-10.40
2060-08-18.357	73689.357	-2.847	0.000	0.47 ± 0.005	3.14E6	5.04E-9	1.92E-8	-7.87
2062-08-18.866	74419.866	0.664	0.000	0.49 ± 0.004	4.78E5	1.51E-6	6.02E-6	-5.40
2062-08-18.877	74419.877	0.639	0.000	0.20 ± 0.012	8.62E4	9.28E-6	3.70E-5	-4.61
2063-08-18.380	74784.380	4.367	0.000	0.09 ± 0.004	1.81E6	3.90E-11	1.63E-10	-9.98
2065-08-18.552	75515.552	-3.348	0.000	1.02 ± 0.015	4.30E6	7.63E-10	2.89E-9	-8.75
2065-08-18.605	75515.605	-2.075	0.000	1.09 ± 0.004	6.67E6	7.98E-9	3.07E-8	-7.72
2065-08-18.670	75515.670	-0.905	0.000	1.01 ± 0.004	2.40E7	1.54E-8	6.02E-8	-7.43
2067-08-19.032	76246.032	-2.091	0.000	1.06 ± 0.006	1.76E6	3.68E-8	1.41E-7	-7.09
2067-08-19.038	76246.038	-2.082	0.000	1.19 ± 0.004	1.62E6	5.07E-8	1.95E-7	-6.95
2067-08-19.190	76246.190	0.237	0.000	0.56 ± 0.005	1.40E7	6.07E-8	2.41E-7	-6.86
2067-08-19.197	76246.197	-0.911	0.000	0.77 ± 0.004	3.16E7	1.61E-8	6.28E-8	-7.44
2067-08-19.216	76246.216	-4.217	0.000	0.69 ± 0.005	1.63E6	6.94E-11	2.60E-10	-9.82
2069-08-18.338	76976.338	0.796	0.000	0.03 ± 0.127	2.34E7	3.05E-8	1.21E-7	-7.18
2069-08-18.588	76976.588	-0.922	0.000	1.18 ± 0.005	1.93E7	2.33E-8	9.06E-8	-7.30
2070-08-19.083	77342.083	0.992	0.000	1.19 ± 0.005	1.08E5	5.43E-6	2.17E-5	-4.93
2072-08-18.262	78072.262	-0.193	0.000	1.16 ± 0.006	1.35E8	2.37E-9	9.37E-9	-8.31
2073-08-18.457	78437.457	-1.406	0.543	1.24 ± 0.122	2.11E7	1.60E-9	6.01E-9	-8.51
2074-08-19.149	78803.149	3.308	0.000	0.93 ± 0.006	2.24E5	1.79E-8	7.35E-8	-7.44
2075-03-04.438	79000.438	-1.173	2.063	0.96 ± 1.097	1.41E7	2.47E-11	9.31E-11	-10.33
2075-08-19.849	79168.849	-0.260	0.000	1.10 ± 0.005	1.81E7	2.57E-8	1.01E-7	-7.30
2076-08-18.296	79533.296	3.741	0.000	0.71 ± 0.005	3.51E5	2.08E-9	8.62E-9	-8.39
2076-08-18.355	79533.355	2.487	0.000	0.01 ± 0.000	2.71E7	1.64E-9	6.68E-9	-8.49
2076-08-18.391	79533.391	3.726	0.000	0.44 ± 0.005	1.30E5	7.12E-9	2.95E-8	-7.85
2077-08-19.127	79899.127	-0.426	3.011	1.23 ± 0.006	2.32E5	2.47E-10	9.40E-10	-9.35
2078-08-19.494	80264.494	4.321	0.000	0.25 ± 0.005	8.63E4	9.81E-10	4.10E-9	-8.72
2081-08-18.644	81359.644	-0.887	0.000	1.18 ± 0.019	1.66E8	1.12E-9	4.37E-9	-8.71
2081-08-18.930	81359.930	0.184	0.000	1.15 ± 0.003	2.61E8	1.36E-9	5.38E-9	-8.62
2083-08-18.870	82089.870	-1.286	0.000	0.92 ± 0.003	5.93E6	5.01E-8	1.96E-7	-7.08
2083-08-19.479	82090.479	-0.734	0.000	1.20 ± 0.008	8.14E6	2.18E-8	8.54E-8	-7.44
2084-08-18.620	82455.620	0.183	0.000	0.69 ± 0.000	1.17E9	6.79E-10	2.69E-9	-8.95
2085-08-17.878	82819.878	-0.434	0.000	1.08 ± 0.011	2.53E7	1.68E-8	6.62E-8	-7.56
2087-08-19.212	83551.212	0.673	0.000	0.37 ± 0.003	8.19E5	9.13E-7	3.64E-6	-5.84
2088-08-18.206	83916.206	3.867	0.000	0.56 ± 0.003	4.17E7	1.18E-11	4.92E-11	-10.72
2088-08-18.487	83916.487	-0.450	0.000	0.50 ± 0.078	3.62E6	2.24E-7	8.76E-7	-6.46
2088-08-18.573	83916.573	0.795	0.000	0.56 ± 0.064	2.26E7	2.89E-8	1.15E-7	-7.34
2088-08-18.804	83916.804	-2.410	0.000	0.01 ± 0.092	3.25E6	1.65E-8	6.34E-8	-7.60
2089-08-18.806	84281.806	0.128	0.000	0.79 ± 0.023	5.07E7	1.62E-8	6.41E-8	-7.60
2089-08-19.166	84282.166	0.122	0.000	1.18 ± 0.005	7.87E6	3.41E-8	1.35E-7	-7.28
2090-08-18.981	84646.981	0.787	0.000	0.79 ± 0.043	1.41E7	3.91E-8	1.55E-7	-7.22
2090-08-19.219	84647.219	-3.189	0.000	0.55 ± 0.004	6.34E5	8.60E-9	3.27E-8	-7.90
2091-08-19.275	85012.275	1.644	0.000	0.87 ± 0.039	2.28E6	9.91E-8	3.99E-7	-6.82
2092-08-19.081	85378.081	-0.260	0.000	0.84 ± 0.032	1.51E8	4.61E-9	1.81E-8	-8.17
2093-03-04.746	85575.746	1.648	3.390	1.23 ± 1.383	2.03E6	2.53E-10	9.87E-10	-9.43
2093-08-18.629	85742.629	-1.072	0.000	0.44 ± 0.145	9.82E6	5.23E-8	2.02E-7	-7.13
2095-08-19.754	86473.754	2.146	0.000	0.89 ± 0.005	4.49E6	1.51E-8	6.12E-8	-7.66
2097-08-19.476	87204.476	0.897	0.000	0.74 ± 0.008	1.48E7	3.58E-8	1.43E-7	-7.30
2098-08-19.173	87569.173	-1.446	0.000	0.96 ± 0.004	3.86E6	5.62E-8	2.18E-7	-7.12
2101-08-20.240	88665.240	2.533	0.000	0.61 ± 0.005	6.79E4	5.07E-7	2.07E-6	-6.17
2103-08-20.694	89395.694	-4.007	0.000	0.14 ± 0.005	6.49E5	4.93E-10	1.85E-9	-9.22
2104-08-19.621	89760.621	-0.735	0.000	0.63 ± 0.005	1.91E7	3.58E-8	1.40E-7	-7.35
2104-08-19.764	89760.764	1.776	0.000	1.19 ± 0.003	2.49E7	2.54E-9	1.03E-8	-8.49
2104-08-19.940	89760.940	1.682	0.000	1.21 ± 0.000	2.02E8	1.94E-10	7.81E-10	-9.60
2105-08-20.132	90126.132	-4.127	0.000	1.12 ± 0.003	5.23E6	1.80E-11	6.78E-11	-10.66
2106-08-20.386	90491.386	1.781	0.000	0.58 ± 0.008	9.23E5	1.92E-7	7.76E-7	-6.62
2107-08-20.579	90856.579	1.739	0.000	1.14 ± 0.005	5.81E6	1.43E-8	5.78E-8	-7.75
2107-08-20.909	90856.909	-2.408	0.000	0.64 ± 0.003	1.79E6	2.78E-8	1.07E-7	-7.48
2109-08-20.291	91587.291	1.743	0.000	0.53 ± 0.007	1.47E6	1.32E-7	5.32E-7	-6.80
2111-08-20.879	92317.879	-2.817	0.000	1.17 ± 0.005	8.62E6	7.28E-10	2.77E-9	-9.08
2112-08-19.678	92682.678	0.463	0.000	0.51 ± 0.015	1.33E8	6.10E-9	2.43E-8	-8.15
2113-08-20.025	93048.025	3.567	0.000	0.72 ± 0.022	3.99E7	3.45E-11	1.43E-10	-10.39
2114-08-19.685	93412.685	0.676	0.000	0.89 ± 0.003	6.37E7	8.49E-9	3.39E-8	-8.02
2115-08-20.921	93778.921	4.105	0.000	0.10 ± 0.003	6.30E5	3.39E-10	1.42E-9	-9.40
2115-08-20.936	93778.936	-0.392	0.000	0.45 ± 0.018	1.53E8	5.89E-9	2.32E-8	-8.18
2118-08-20.398	94874.398	1.021	0.000	0.53 ± 0.006	5.90E7	9.02E-9	3.62E-8	-8.01
2118-08-20.418	94874.418	1.023	0.000	0.34 ± 0.004	1.32E7	4.23E-8	1.70E-7	-7.33
2119-08-21.125	95240.125	-1.634	0.000	0.15 ± 0.003	2.12E6	1.21E-7	4.70E-7	-6.89
2119-08-21.215	95240.215	-1.626	0.000	1.15 ± 0.003	3.92E6	2.34E-8	9.10E-8	-7.61


Based on 30 optical observations (of which 0 are rejected as outliers) from 2007/02/21.390 to 2007/03/02.085.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.23 and 1.23 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20250305 082906.664 UTC.

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