Asteroids

533011 2014AY28 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.023

Aphelion (Q)

1.828

Eccentricity (e)

0.283

Inclination (i)

5.7

deg

Orbit period (P)

621.6

Earth MOID

0.03571

U parameter

0.6

Next Earth close approach

Date

2031-04-14

Nominal distance (from Earth center)

0.08242

12330080

Maximum Brightness

18.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

21.8

mag

Diameter

120 - 260*

Taxonomic type

Rotation period (T)

0.9139

Discovery Information

Discovery Date

2014-01-04

Observatory

Pan-STARRS 1, Haleakala

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

1.425476

1-sigma variation

1.869E-8

Unit

Eccentricity (e)

Value

0.282534

1-sigma variation

1.310E-8

Unit

Inclination (i)

Value

5.7086

1-sigma variation

2.605E-6

Unit

Long. of Ascending Node (Ω)

Value

169.5646

1-sigma variation

8.911E-6

Unit

Arg. of Perihelion (ω)

Value

22.6998

1-sigma variation

1.165E-5

Unit

Mean Anomaly (M)

Value

303.20512

1-sigma variation

0.00005

Unit

Perihelion distance

Value

1.022731

1-sigma variation

Unit

Aphelion distance

Value

1.828220

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.046305

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.767091

1-sigma variation

Unit

MOID

Value

0.035708

1-sigma variation

Unit

Orbit Period

Value

621.6388

1-sigma variation

Unit

U parameter

Value

0.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.49446E-16	1.99727E-16	2.10033E-15	1.35495E-14	3.66759E-14	-9.38839E-13
e	1.99727E-16	1.71699E-16	5.11742E-15	-1.70973E-14	7.68574E-14	-5.50592E-13
i	2.10033E-15	5.11742E-15	6.78479E-12	-4.82082E-13	1.28283E-12	-5.90663E-12
Ω	1.35495E-14	-1.70973E-14	-4.82082E-13	7.94079E-11	-6.42773E-11	-4.38480E-11
ω	3.66759E-14	7.68574E-14	1.28283E-12	-6.42773E-11	1.35762E-10	-1.34959E-10
M	-9.38839E-13	-5.50592E-13	-5.90663E-12	-4.38480E-11	-1.34959E-10	2.54687E-9

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

0.9139

Unit

Source

[1]

Quality

Value

Unit

Source

[1]

Amplitude

Value

0.54

Unit

mag

Source

[1]

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

21.762

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

120 - 260*

Unit

Source

[3]

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]	EARN	1.) Warner, B.D. et al. (2014) MPB 41, 157-168. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 JANUARY-MARCH) (1943,4055,4954,25916,35107,40267,53435, 68031,85990,86039,138127,143409,243566,275677,277570,294739, 357622,377097,1995CR,2006DP14,2009CT,2009QF31,2011BT15, 2012AU10,2013XV8,2013YZ13,2013PD21,2013XF22,2013YZ37, 2013WT44,2014CR,2014EM,2014BR8,2014CG13,2014CU13,2014EY24, 2014AY28,2014EL45,2014BR57,2014DX110)
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

1809

Unit

Source

[1]

Unobserved

Value

2465

Unit

Source

[1]

Normalized RMS of residuals

Value

0.37348

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2014-01-04.55441

Unit

Source

[2]

Last Observation

Value

2018-12-18.146594

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

378 (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

2014-03-17

Unit

Source

[3]

Last Observation

Value

2014-03-17

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

2 (0)

Unit

Source

[1]

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
[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 533011 2014AY28 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	1968-03-02 18:16	1.4	0.1456432	0.1456005	0.0000142
EARTH	1985-03-28 05:36	1.2	0.0449618	0.0449568	0.0000017
EARTH	2014-03-17 03:33	< 1 s	0.0428958	0.0428958	0.0000000
EARTH	2031-04-14 23:28	< 1 min	0.0824215	0.0824170	0.0000015
EARTH	2060-03-09 09:52	< 1 min	0.0865018	0.0864973	0.0000015
EARTH	2077-03-31 15:57	< 1 min	0.0513742	0.0513711	0.0000011
EARTH	2106-03-11 15:10	1.5	0.0826581	0.0826321	0.0000087
EARTH	2123-04-11 16:38	1.7	0.0710008	0.0709921	0.0000029

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
351.25829353	77.43898270	0.03627857	MINIMUM
182.60420911	272.40355543	0.83041371	SADDLE
3.47600927	273.67022560	2.02134402	SADDLE
181.48007856	91.56613654	2.82772203	MAXIMUM

Download:

MOID Plots

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