Asteroids

2015VO142 help

Last update: 2024-04-25 23:56 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.940

Aphelion (Q)

1.210

Eccentricity (e)

0.126

Inclination (i)

0.3

deg

Orbit period (P)

407.0

Earth MOID

0.00272

U parameter

4.7

Next Earth close approach

Date

2025-09-17

Nominal distance (from Earth center)

0.14402

21544617

Maximum Brightness

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

28.9

mag

Diameter

4 - 10*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-11-14

Observatory

Mt. Lemmon Survey

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

1.074756

1-sigma variation

0.000005

Unit

Eccentricity (e)

Value

0.125843

1-sigma variation

0.000008

Unit

Inclination (i)

Value

0.2845

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

95.3716

1-sigma variation

0.0296

Unit

Arg. of Perihelion (ω)

Value

20.3777

1-sigma variation

0.0281

Unit

Mean Anomaly (M)

Value

134.64794

1-sigma variation

0.01808

Unit

Perihelion distance

Value

0.939505

1-sigma variation

Unit

Aphelion distance

Value

1.210007

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.036108

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.181780

1-sigma variation

Unit

MOID

Value

0.002724

1-sigma variation

Unit

Orbit Period

Value

406.9706

1-sigma variation

Unit

U parameter

Value

4.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.12670E-11	3.80413E-11	-8.81623E-10	1.36446E-7	-1.29274E-7	-8.33750E-8
e	3.80413E-11	6.80689E-11	-1.57860E-9	2.44326E-7	-2.31485E-7	-1.49146E-7
i	-8.81623E-10	-1.57860E-9	3.66752E-8	-5.67714E-6	5.37892E-6	3.45696E-6
Ω	1.36446E-7	2.44326E-7	-5.67714E-6	8.78803E-4	-8.32642E-4	-5.35027E-4
ω	-1.29274E-7	-2.31485E-7	5.37892E-6	-8.32642E-4	7.88907E-4	5.06907E-4
M	-8.33750E-8	-1.49146E-7	3.45696E-6	-5.35027E-4	5.06907E-4	3.26866E-4

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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

28.928

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

4 - 10*

Unit

Source

[4]

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]	EARN	1.) Maxime Devogèle et al 2019 AJ 158 196
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA ODIM	ESA orbit determination and impact monitoring system
[4]	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

3078

Unit

Source

[1]

Normalized RMS of residuals

Value

0.401367

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-11-06.497654

Unit

Source

[2]

Last Observation

Value

2015-11-22.06765

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

113 (1)

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 2015VO142 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	1958-08-04 08:23	> 1 d	0.1742388	0.1741209	0.0000393
EARTH	1959-04-15 10:23	151.9	0.1795020	0.1709428	0.0028533
EARTH	1969-10-20 10:23	> 1 d	0.0997617	0.0938548	0.0019705
EARTH	1970-01-31 14:51	> 1 d	0.0507020	0.0502917	0.0001378
EARTH	1980-11-10 10:34	62.3	0.1814834	0.1763836	0.0016999
EARTH	1981-07-22 10:24	> 1 d	0.1739944	0.1737579	0.0000788
EARTH	1992-10-07 01:41	1377.1	0.1139710	0.1127851	0.0003953
EARTH	1993-02-16 09:27	1410.0	0.0471027	0.0463978	0.0002351
EARTH	2004-08-05 07:50	739.3	0.1720298	0.1719482	0.0000272
EARTH	2005-04-11 04:09	29.5	0.1562105	0.1544584	0.0005841
EARTH	2015-11-24 02:22	< 1 s	0.0026248	0.0026240	0.0000002
EARTH	2016-05-18 11:51	21.8	0.1410058	0.1409670	0.0000129
EARTH	2025-09-17 13:57	644.6	0.1440169	0.1434905	0.0001755
EARTH	2026-03-17 05:10	136.3	0.0069757	0.0061899	0.0002764
EARTH	2034-01-11 11:37	> 1 w	0.0357985	0.0280343	0.0025952
EARTH	2041-12-07 04:55	> 1 w	0.0106338	0.0033126	0.0152785
EARTH	2042-04-18 05:03	> 1 mo	0.1259856	0.1040993	0.0073433
EARTH	2056-09-23 18:44	> 1 mo	0.1663169	0.0096736	0.7429122
EARTH	2057-03-15 15:39	> 1 mo	0.0590428	0.0034049	1.6449609
EARTH	2063-11-21 16:10	> 1 mo	0.0751543	0.0033118	2.2152854
EARTH	2064-05-17 01:52	> 1 mo	0.1729705	0.0097322	0.9226469
EARTH	2078-09-28 23:29	> 1 mo	0.1601978	0.0104901	1.1027472
EARTH	2079-03-15 06:55	> 1 mo	0.0464287	0.0031991	2.2575310
EARTH	2085-12-01 22:44	> 1 mo	0.0078706	0.0034311	6.8400864
EARTH	2086-05-16 04:52	> 1 mo	0.1426539	0.1212657	1.2931918
EARTH	2102-12-04 02:41	> 1 mo	0.0033595	0.0032528	330.3535019
EARTH	2103-05-31 06:39	> 1 mo	0.1399484	0.1319879	3643.5610367
EARTH	2112-12-17 22:44	> 1 mo	0.0268798	0.0000000	818073.5508426
EARTH	2113-05-14 02:03	> 1 mo	0.1232369	0.0161771	569688.9630398
EARTH	2122-08-23 19:30	> 1 mo	0.1841558	0.0522364	1911473.1381268
EARTH	2123-04-08 03:09	> 1 mo	0.1513037	0.0140932	10800363.4541029

Download as:

2015VO142

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2046-04-06.369	68441.369	3.528	0.000	3.78 ± 0.033	2.16E5	1.23E-8	4.22E-11	-9.71
2065-11-25.696	75614.696	-0.786	0.000	2.10 ± 0.119	5.46E6	3.76E-7	1.29E-9	-8.51
2065-11-25.761	75614.761	-0.777	0.000	3.72 ± 0.122	5.07E6	2.17E-7	7.43E-10	-8.75
2066-11-27.175	75981.175	3.183	0.000	1.68 ± 0.290	2.80E5	7.27E-8	2.48E-10	-9.23
2078-12-06.583	80373.583	-0.774	0.000	3.47 ± 1.268	3.24E5	3.61E-6	1.23E-8	-7.64
2080-05-12.208	80896.208	-0.775	0.000	0.88 ± 5.848	3.18E8	3.13E-9	1.07E-11	-10.71
2083-04-14.617	81963.617	3.627	0.000	1.38 ± 0.022	7.97E6	5.40E-10	1.84E-12	-11.49
2084-02-22.480	82277.480	-0.078	0.000	1.44 ± 0.083	5.46E6	5.59E-7	1.91E-9	-8.49
2085-12-03.716	82927.716	-0.908	0.013	0.86 ± 2.025	3.35E8	4.47E-8	1.57E-10	-9.59
2087-12-07.739	83661.739	-1.088	0.000	3.93 ± 0.986	1.45E6	4.19E-7	1.43E-9	-8.64
2090-12-05.535	84755.535	-0.937	0.000	3.99 ± 0.155	2.17E8	2.39E-9	8.16E-12	-10.90
2091-11-10.056	85095.056	-2.471	0.000	0.54 ± 31.564	6.24E6	1.99E-9	6.81E-12	-10.99
2094-03-10.407	85946.407	-3.858	0.000	0.57 ± 0.089	9.66E6	1.97E-10	6.72E-13	-12.00
2094-12-07.047	86218.047	-1.057	0.000	2.59 ± 0.887	3.31E7	4.18E-8	1.43E-10	-9.68
2095-11-22.318	86568.318	-1.289	0.880	4.11 ± 15.251	5.05E5	2.15E-7	7.55E-10	-8.97
2097-03-06.199	87038.199	0.295	0.000	2.34 ± 0.000	1.98E9	1.47E-9	5.03E-12	-11.15
2097-03-22.323	87054.323	2.001	0.000	3.66 ± 0.033	1.31E7	1.51E-8	5.17E-11	-10.14
2097-12-06.182	87313.182	-1.089	0.000	2.50 ± 0.836	1.62E8	8.70E-9	2.97E-11	-10.38
2098-03-01.015	87398.015	-0.368	0.000	3.26 ± 0.234	4.36E6	4.40E-7	1.50E-9	-8.68
2099-11-12.966	88019.966	-1.574	1.024	1.81 ± 1.936	1.12E6	1.47E-9	5.17E-12	-11.16
2099-11-28.889	88035.889	-0.826	0.000	2.29 ± 0.104	1.42E7	1.34E-7	4.60E-10	-9.20
2101-11-21.215	88758.215	-2.477	0.000	1.71 ± 145.641	1.06E8	2.51E-11	8.58E-14	-12.94
2102-11-29.823	89131.823	-0.885	0.000	0.68 ± 0.000	5.31E7	4.09E-8	1.40E-10	-9.74
2107-02-27.273	90682.273	0.883	0.000	2.49 ± 0.099	2.82E7	6.59E-8	2.25E-10	-9.55
2107-04-12.780	90726.780	3.547	0.000	3.34 ± 0.024	2.36E8	1.91E-11	6.50E-14	-13.09
2110-03-03.260	91782.260	1.093	0.000	2.14 ± 0.077	3.06E6	5.49E-7	1.88E-9	-8.65
2114-03-20.637	93260.637	0.940	0.000	3.50 ± 0.055	6.11E7	2.13E-8	7.27E-11	-10.08
2118-02-24.928	94697.928	-0.331	0.000	1.52 ± 0.083	9.47E6	3.00E-7	1.03E-9	-8.94
2120-03-14.903	95446.903	-0.001	0.000	1.47 ± 1.432	1.86E8	1.55E-8	5.30E-11	-10.24
2120-12-04.020	95711.020	-0.817	0.000	4.03 ± 0.283	3.99E7	1.30E-8	4.43E-11	-10.32
2122-03-11.656	96173.656	1.048	0.000	2.57 ± 0.000	7.36E7	2.00E-8	6.85E-11	-10.14
2122-03-18.763	96180.763	2.164	0.000	1.05 ± 0.100	9.89E6	3.05E-8	1.04E-10	-9.95


Based on 113 optical observations (of which 1 are rejected as outliers) from 2015/11/06.498 to 2015/11/22.068.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 4.11 and 4.11 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20240110 090432.932 UTC.

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