Asteroids

2015FA285 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.398

Aphelion (Q)

1.084

Eccentricity (e)

0.463

Inclination (i)

9.2

deg

Orbit period (P)

233.0

Earth MOID

0.00256

U parameter

8.0

Next Earth close approach

Date

2029-03-05

Nominal distance (from Earth center)

0.11999

17949947

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-03-29

Observatory

Catalina Sky 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.741095

1-sigma variation

0.000184

Unit

Eccentricity (e)

Value

0.463233

1-sigma variation

0.000810

Unit

Inclination (i)

Value

9.2394

1-sigma variation

0.0069

Unit

Long. of Ascending Node (Ω)

Value

10.5438

1-sigma variation

0.1030

Unit

Arg. of Perihelion (ω)

Value

335.5472

1-sigma variation

0.1675

Unit

Mean Anomaly (M)

Value

119.05241

1-sigma variation

1.74711

Unit

Perihelion distance

Value

0.397795

1-sigma variation

Unit

Aphelion distance

Value

1.084394

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.591373

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.006200

1-sigma variation

Unit

MOID

Value

0.002559

1-sigma variation

Unit

Orbit Period

Value

233.0284

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.37605E-8	1.48810E-7	1.27451E-6	1.89296E-5	-3.07770E-5	3.21014E-4
e	1.48810E-7	6.55945E-7	5.61875E-6	8.34379E-5	-1.35660E-4	1.41497E-3
i	1.27451E-6	5.61875E-6	4.81680E-5	7.14615E-4	-1.16194E-3	1.21188E-2
Ω	1.89296E-5	8.34379E-5	7.14615E-4	1.06139E-2	-1.72567E-2	1.79994E-1
ω	-3.07770E-5	-1.35660E-4	-1.16194E-3	-1.72567E-2	2.80572E-2	-2.92645E-1
M	3.21014E-4	1.41497E-3	1.21188E-2	1.79994E-1	-2.92645E-1	3.05239E0

Date of computation: 2025-09-10 00:30 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

26.337

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

14 - 30*

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

3822

Unit

Source

[1]

Normalized RMS of residuals

Value

0.481464

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-03-29.34929

Unit

Source

[2]

Last Observation

Value

2015-04-02.246103

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

41 (3)

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 2015FA285 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
MERCURY	1951-08-18 04:36	> 1 w	0.0287219	0.0138335	0.0867049
EARTH	1955-03-15 20:31	> 1 w	0.1047123	0.0496942	0.0283502
EARTH	1962-02-21 05:45	> 1 d	0.1247638	0.1245375	0.0013897
EARTH	1964-04-01 09:49	1010.3	0.1546865	0.0498352	0.0350265
MERCURY	1964-06-04 21:56	> 1 d	0.0199550	0.0008813	0.0486180
MERCURY	1966-04-25 21:15	> 1 d	0.0371431	0.0168829	0.0249594
EARTH	1969-02-07 20:18	47.3	0.1389663	0.1349372	0.0014325
EARTH	1971-04-02 09:05	347.7	0.0162125	0.0019637	0.0085252
EARTH	1976-02-08 16:31	355.5	0.1983434	0.1619825	0.0134465
MERCURY	1977-03-11 07:35	> 1 d	0.0191072	0.0016164	0.0282571
EARTH	1978-03-28 13:32	> 1 d	0.0479578	0.0069500	0.0142795
EARTH	1985-03-15 13:24	> 1 d	0.1039252	0.0854956	0.0063672
MERCURY	1989-12-09 06:36	> 1 d	0.0082116	0.0005754	0.0119684
EARTH	1992-02-27 22:18	> 1 d	0.1238270	0.1237413	0.0001777
EARTH	1999-02-14 09:03	5.0	0.1220232	0.1202875	0.0005823
MERCURY	2000-10-19 08:21	331.2	0.0427536	0.0328095	0.0033257
EARTH	2001-04-02 14:15	38.5	0.1115757	0.1003606	0.0037393
MERCURY	2002-09-07 08:48	1199.0	0.0356366	0.0210636	0.0056561
EARTH	2006-02-08 07:58	392.8	0.1416576	0.1286161	0.0051907
EARTH	2008-04-01 23:49	550.7	0.0236994	0.0031134	0.0134855
EARTH	2013-02-07 21:59	55.5	0.1757560	0.1683556	0.0025105
MERCURY	2013-07-09 17:41	730.0	0.0368102	0.0258873	0.0039974
EARTH	2015-03-31 22:18	< 1 min	0.0164457	0.0163609	0.0000283
EARTH	2022-03-21 00:49	> 1 d	0.0881374	0.0655265	0.0076777
MERCURY	2024-05-20 11:49	> 1 d	0.0037505	0.0018265	0.0141194
EARTH	2029-03-05 03:53	> 1 d	0.1199880	0.1195004	0.0002988
EARTH	2036-02-18 21:47	1127.4	0.1220814	0.1206757	0.0005709
MERCURY	2037-02-16 15:10	> 1 d	0.0265164	0.0139337	0.0072069
EARTH	2038-04-02 10:38	279.9	0.1437392	0.1106015	0.0110478
EARTH	2043-02-09 19:11	1259.9	0.1298635	0.1216617	0.0056891
EARTH	2045-04-02 20:46	293.0	0.0529375	0.0043469	0.0229365
MERCURY	2047-12-27 14:18	> 1 d	0.0033054	0.0013677	0.0176966
EARTH	2050-02-08 05:57	204.6	0.1659365	0.1503163	0.0056110
EARTH	2052-03-31 19:14	329.8	0.0079810	0.0038189	0.0043627
EARTH	2059-03-12 22:33	> 1 d	0.1102377	0.1000169	0.0035656
MERCURY	2060-10-08 18:51	> 1 d	0.0482858	0.0066350	0.0249135
MERCURY	2062-09-01 19:07	> 1 d	0.0137855	0.0044878	0.0113671
EARTH	2066-02-14 20:55	> 1 d	0.1211513	0.1211135	0.0002150
EARTH	2068-04-02 15:24	255.5	0.0981232	0.0534063	0.0149421
EARTH	2073-02-07 17:55	296.0	0.1792881	0.1482166	0.0115475
EARTH	2075-03-29 03:16	> 1 d	0.0464644	0.0157539	0.0105646
MERCURY	2077-05-22 07:19	> 1 d	0.0427816	0.0058288	0.0242988
MERCURY	2079-04-15 09:19	> 1 d	0.0146819	0.0050464	0.0091347
EARTH	2082-03-03 10:12	> 1 d	0.1213712	0.1200880	0.0005493
EARTH	2089-02-09 06:33	310.3	0.1287870	0.1285415	0.0001073
EARTH	2091-04-03 03:14	228.5	0.0322480	0.0170766	0.0051230
MERCURY	2095-11-27 13:10	> 1 d	0.0135946	0.0051283	0.0056861
EARTH	2098-03-23 00:45	> 1 d	0.0799492	0.0647947	0.0050825
EARTH	2105-02-28 05:24	> 1 d	0.1223878	0.1220547	0.0002843
EARTH	2107-04-02 20:00	298.9	0.1896461	0.1571277	0.0108429
MERCURY	2110-08-10 19:35	> 1 d	0.0048638	0.0013755	0.0075088
EARTH	2112-02-11 12:24	604.1	0.1271718	0.1243536	0.0014780
EARTH	2114-04-04 05:32	184.5	0.0477264	0.0341936	0.0045299
EARTH	2119-02-09 23:42	153.5	0.1972105	0.1844858	0.0043074
EARTH	2121-03-28 12:45	1188.8	0.0547199	0.0369926	0.0059763
MERCURY	2123-05-23 19:04	> 1 d	0.0334015	0.0050389	0.0211578
MERCURY	2125-04-12 19:04	> 1 d	0.0293848	0.0133789	0.0151534

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
220.86300345	88.33879932	0.00299503	MINIMUM
146.45355402	42.91908807	0.12141164	MINIMUM
162.56756712	52.89982219	0.12326467	SADDLE
354.00278749	236.28910912	0.61222095	SADDLE
355.30221705	58.43061063	1.38899793	SADDLE
179.05682248	242.79324680	2.09037776	MAXIMUM

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MOID Plots

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