Asteroids

2015CL help

Last update: 2024-04-18 01:04 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.319

Aphelion (Q)

1.146

Eccentricity (e)

0.565

Inclination (i)

3.0

deg

Orbit period (P)

228.9

Earth MOID

0.00009

U parameter

1.1

Next Earth close approach

Date

2025-01-29

Nominal distance (from Earth center)

0.12022

17983996

Maximum Brightness

22.2

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-02-08

Observatory

Catalina Sky 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

0.732345

1-sigma variation

4.691E-9

Unit

Eccentricity (e)

Value

0.564515

1-sigma variation

0.000001

Unit

Inclination (i)

Value

2.9771

1-sigma variation

1.322E-5

Unit

Long. of Ascending Node (Ω)

Value

319.9875

1-sigma variation

7.154E-6

Unit

Arg. of Perihelion (ω)

Value

331.0138

1-sigma variation

7.576E-6

Unit

Mean Anomaly (M)

Value

106.14807

1-sigma variation

0.00009

Unit

Perihelion distance

Value

0.318925

1-sigma variation

Unit

Aphelion distance

Value

1.145765

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.678849

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000918

1-sigma variation

Unit

MOID

Value

0.000086

1-sigma variation

Unit

Orbit Period

Value

228.9139

1-sigma variation

Unit

U parameter

Value

1.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.20100E-17	3.88636E-15	4.55559E-14	-1.80887E-14	-2.09645E-14	4.08021E-13
e	3.88636E-15	6.97895E-13	8.07052E-12	-3.18621E-12	-3.81701E-12	7.40040E-11
i	4.55559E-14	8.07052E-12	1.74818E-10	-6.82503E-11	-1.29423E-11	8.55425E-10
Ω	-1.80887E-14	-3.18621E-12	-6.82503E-11	5.11825E-11	-1.89576E-11	-3.37641E-10
ω	-2.09645E-14	-3.81701E-12	-1.29423E-11	-1.89576E-11	5.73993E-11	-4.05354E-10
M	4.08021E-13	7.40040E-11	8.55425E-10	-3.37641E-10	-4.05354E-10	7.89794E-9

Date of computation: 2024-02-21 14:29 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

25.416

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

22 - 50*

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 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

1831

Unit

Source

[1]

Unobserved

Value

1536

Unit

Source

[1]

Normalized RMS of residuals

Value

0.774793

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-01-29.61809

Unit

Source

[2]

Last Observation

Value

2020-02-03.14527

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

75 (5)

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 2015CL 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	1951-01-05 09:35	3.7	0.1549284	0.1549138	0.0000049
MERCURY	1951-04-25 14:45	1.9	0.0331855	0.0331843	0.0000005
EARTH	1956-01-29 21:40	5.7	0.1199112	0.1198556	0.0000185
EARTH	1958-12-15 12:05	1.1	0.1085612	0.1083947	0.0000555
EARTH	1961-02-08 17:40	< 1 min	0.0352220	0.0349874	0.0000782
EARTH	1963-12-20 17:55	10.2	0.0932524	0.0931004	0.0000507
EARTH	1969-01-14 09:33	19.3	0.1582683	0.1582434	0.0000083
EARTH	1974-02-05 17:36	9.0	0.0656860	0.0654641	0.0000740
MERCURY	1976-02-15 08:53	10.8	0.0381203	0.0379086	0.0000712
EARTH	1976-12-14 14:31	1.1	0.0471643	0.0470528	0.0000374
EARTH	1979-02-08 12:40	2.5	0.1110153	0.1107404	0.0000916
EARTH	1981-12-26 13:43	15.6	0.1286126	0.1284945	0.0000394
EARTH	1987-01-19 01:43	16.9	0.1538609	0.1538116	0.0000164
EARTH	1989-12-17 17:59	3.0	0.1974023	0.1971914	0.0000703
EARTH	1992-02-07 17:46	4.4	0.0431520	0.0429875	0.0000548
MERCURY	1992-04-03 22:50	6.4	0.0343130	0.0342366	0.0000259
EARTH	1994-12-15 16:16	1.5	0.0430854	0.0430578	0.0000093
EARTH	1997-02-07 03:06	1.6	0.1504493	0.1503146	0.0000449
EARTH	2000-01-01 01:43	6.7	0.1449225	0.1448916	0.0000103
EARTH	2005-01-24 06:45	3.3	0.1399552	0.1399357	0.0000065
EARTH	2007-12-16 23:13	< 1 min	0.1500470	0.1500321	0.0000049
EARTH	2010-02-08 19:43	< 1 s	0.0026688	0.0026681	0.0000002
EARTH	2012-12-13 20:26	< 1 min	0.0765438	0.0765384	0.0000018
EARTH	2015-02-08 22:38	< 1 s	0.0110879	0.0110878	0.0000000
EARTH	2017-12-14 11:38	< 1 min	0.1136424	0.1136367	0.0000019
EARTH	2020-02-06 10:07	< 1 s	0.0679864	0.0679857	0.0000002
EARTH	2022-12-16 15:14	< 1 min	0.1859727	0.1859671	0.0000019
EARTH	2025-01-29 23:05	< 1 min	0.1202156	0.1202144	0.0000004
EARTH	2030-01-20 06:08	< 1 min	0.1555643	0.1555627	0.0000006
EARTH	2035-01-09 16:50	< 1 min	0.1643147	0.1643128	0.0000006
EARTH	2039-12-31 00:42	< 1 min	0.1487661	0.1487642	0.0000006
MERCURY	2042-10-31 19:32	< 1 min	0.0451461	0.0451435	0.0000009
EARTH	2044-12-21 12:59	< 1 min	0.1124412	0.1124394	0.0000006
MERCURY	2045-12-19 11:28	< 1 min	0.0338018	0.0338014	0.0000001
EARTH	2047-02-07 16:01	< 1 min	0.1560942	0.1560892	0.0000017
MERCURY	2049-02-06 00:59	< 1 min	0.0361585	0.0361557	0.0000009
EARTH	2049-12-16 07:02	< 1 min	0.0671230	0.0671218	0.0000004
EARTH	2052-02-09 10:54	< 1 min	0.0858830	0.0858772	0.0000019
MERCURY	2052-03-26 13:47	< 1 min	0.0451306	0.0451257	0.0000017
MERCURY	2053-07-19 03:54	< 1 min	0.0492472	0.0492471	0.0000000
EARTH	2054-12-14 10:47	< 1 s	0.0437517	0.0437512	0.0000002
EARTH	2057-02-09 03:27	< 1 min	0.0225692	0.0225633	0.0000020
MERCURY	2059-10-23 14:30	< 1 min	0.0497940	0.0497933	0.0000002
EARTH	2059-12-14 16:11	< 1 s	0.0696211	0.0696180	0.0000010
EARTH	2062-02-08 18:01	< 1 s	0.0189801	0.0189797	0.0000001
EARTH	2064-12-14 20:54	< 1 min	0.1324239	0.1324138	0.0000034
EARTH	2067-02-04 10:49	< 1 min	0.0883904	0.0883860	0.0000015
EARTH	2072-01-27 00:43	< 1 min	0.1376223	0.1376180	0.0000014
EARTH	2077-01-15 19:19	1.3	0.1622105	0.1622099	0.0000002
EARTH	2082-01-05 13:30	1.6	0.1604987	0.1604932	0.0000018
EARTH	2086-12-26 14:19	1.6	0.1335864	0.1335727	0.0000046
EARTH	2089-02-06 09:00	< 1 min	0.1921546	0.1921311	0.0000079
EARTH	2091-12-18 20:15	1.0	0.0858500	0.0858296	0.0000068
EARTH	2094-02-08 19:16	< 1 min	0.1089091	0.1088844	0.0000082
MERCURY	2094-11-09 08:21	< 1 min	0.0423308	0.0423048	0.0000087
EARTH	2096-12-14 08:54	< 1 min	0.0431904	0.0431861	0.0000014
MERCURY	2097-12-28 05:41	1.1	0.0336563	0.0336533	0.0000010
EARTH	2099-02-09 21:09	< 1 s	0.0295777	0.0295516	0.0000087
MERCURY	2101-02-15 11:50	1.1	0.0372467	0.0372303	0.0000055
EARTH	2101-12-15 08:17	< 1 min	0.0713776	0.0713562	0.0000071
EARTH	2104-02-10 08:02	< 1 min	0.0219840	0.0219693	0.0000049
MERCURY	2104-04-04 06:33	< 1 min	0.0384830	0.0384693	0.0000046
MERCURY	2105-07-28 08:54	< 1 min	0.0499164	0.0499155	0.0000003
EARTH	2106-12-16 15:50	< 1 min	0.1356194	0.1356117	0.0000026
EARTH	2109-02-04 20:36	< 1 min	0.0905008	0.0904938	0.0000023
EARTH	2114-01-26 22:48	2.2	0.1405482	0.1405330	0.0000051
EARTH	2119-01-16 01:10	4.2	0.1634704	0.1634633	0.0000023
EARTH	2124-01-04 19:44	5.6	0.1563673	0.1563516	0.0000052

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