Asteroids

348306 2005AY28 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.375

Aphelion (Q)

1.370

Eccentricity (e)

0.570

Inclination (i)

5.9

deg

Orbit period (P)

297.8

Earth MOID

0.03610

U parameter

0.7

A₂

-70.7

10^-15au/days²

Next Earth close approach

Date

2025-11-11

Nominal distance (from Earth center)

0.14652

21919377

Maximum Brightness

19.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

21.5

mag

Diameter

130 - 300*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-01-15

Observatory

Lincoln Laboratory ETS, New Mexico

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

0.872653

1-sigma variation

4.656E-9

Unit

Eccentricity (e)

Value

0.570293

1-sigma variation

3.533E-8

Unit

Inclination (i)

Value

5.8850

1-sigma variation

3.476E-6

Unit

Long. of Ascending Node (Ω)

Value

117.4039

1-sigma variation

1.532E-5

Unit

Arg. of Perihelion (ω)

Value

156.0533

1-sigma variation

1.549E-5

Unit

Mean Anomaly (M)

Value

92.34419

1-sigma variation

0.00004

Unit

Perihelion distance

Value

0.374985

1-sigma variation

Unit

Aphelion distance

Value

1.370321

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.245891

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.630403

1-sigma variation

Unit

MOID

Value

0.036095

1-sigma variation

Unit

Orbit Period

Value

297.7563

1-sigma variation

Unit

U parameter

Value

0.7

1-sigma variation

Unit

A₂

Value

-70.66251

1-sigma variation

9.11896

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	2.16781E-17	8.89628E-17	8.44402E-16	-5.69255E-15	1.06286E-14	-1.75468E-13	4.23363E-8
e	8.89628E-17	1.24798E-15	-1.75023E-15	6.00738E-16	4.27061E-14	-7.91151E-13	1.74529E-7
i	8.44402E-16	-1.75023E-15	1.20805E-11	7.53549E-12	-6.16030E-12	-8.16052E-12	2.83452E-6
Ω	-5.69255E-15	6.00738E-16	7.53549E-12	2.34780E-10	-2.35931E-10	2.22372E-11	-9.60211E-6
ω	1.06286E-14	4.27061E-14	-6.16030E-12	-2.35931E-10	2.39897E-10	-6.21312E-11	1.92252E-5
M	-1.75468E-13	-7.91151E-13	-8.16052E-12	2.22372E-11	-6.21312E-11	1.54167E-9	-3.45838E-4
A₂	4.23363E-8	1.74529E-7	2.83452E-6	-9.60211E-6	1.92252E-5	-3.45838E-4	8.31554E1

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

21.496

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

130 - 300*

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

Radar R

Unit

Source

[3]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude
[3]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

6203

Unit

Source

[1]

Unobserved

Value

1391

Unit

Source

[1]

Normalized RMS of residuals

Value

0.615372

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2005-01-13.26203

Unit

Source

[2]

Last Observation

Value

2022-01-07.265743

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

250 (11)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2014-02-07

Unit

Source

[3]

Last Observation

Value

2014-02-08

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

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 348306 2005AY28 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	1957-02-06 00:42	< 1 min	0.0421837	0.0421773	0.0000022
EARTH	1959-11-11 23:31	< 1 min	0.0969668	0.0969647	0.0000007
VENUS	1963-09-05 05:40	< 1 min	0.0341828	0.0341659	0.0000056
VENUS	1967-02-14 18:47	< 1 min	0.0401246	0.0401220	0.0000009
EARTH	1970-02-06 13:06	< 1 min	0.1261703	0.1261615	0.0000029
MERCURY	1971-01-26 17:26	< 1 min	0.0494529	0.0494437	0.0000031
MERCURY	1973-07-26 23:32	< 1 min	0.0388579	0.0388533	0.0000015
EARTH	1979-02-03 20:59	< 1 min	0.1309925	0.1309858	0.0000022
EARTH	1981-11-10 16:13	< 1 s	0.1220023	0.1219988	0.0000012
MERCURY	1988-03-02 03:47	< 1 min	0.0386637	0.0386611	0.0000009
MERCURY	1990-08-31 18:23	< 1 min	0.0374247	0.0374233	0.0000004
VENUS	1991-05-12 19:39	< 1 min	0.0362987	0.0362942	0.0000015
EARTH	1992-02-07 19:49	< 1 s	0.0458494	0.0458472	0.0000007
VENUS	1994-10-22 18:16	< 1 min	0.0396752	0.0396748	0.0000001
EARTH	1994-11-13 18:51	< 1 min	0.1327497	0.1327481	0.0000005
EARTH	2001-02-01 14:52	< 1 s	0.1843789	0.1843779	0.0000003
EARTH	2003-11-11 22:23	< 1 s	0.1511836	0.1511832	0.0000002
EARTH	2014-02-07 07:13	< 1 s	0.0393904	0.0393903	0.0000000
MERCURY	2015-11-13 21:35	< 1 s	0.0483166	0.0483164	0.0000001
EARTH	2016-11-12 23:04	< 1 s	0.1225802	0.1225799	0.0000001
MERCURY	2018-05-14 22:12	< 1 s	0.0469180	0.0469177	0.0000001
EARTH	2023-02-02 02:14	< 1 min	0.1892200	0.1892188	0.0000004
EARTH	2025-11-11 08:57	< 1 s	0.1465220	0.1465210	0.0000003
MERCURY	2026-06-19 08:27	< 1 min	0.0466348	0.0466333	0.0000005
MERCURY	2028-12-18 16:43	< 1 min	0.0489751	0.0489730	0.0000007
EARTH	2036-02-08 05:26	< 1 s	0.0628570	0.0628542	0.0000009
MERCURY	2037-01-21 17:06	< 1 min	0.0371938	0.0371919	0.0000006
EARTH	2038-11-14 20:36	< 1 min	0.1519547	0.1519515	0.0000011
MERCURY	2039-07-24 11:45	< 1 min	0.0383218	0.0383195	0.0000008
EARTH	2045-02-03 05:26	< 1 min	0.1466887	0.1466824	0.0000021
MERCURY	2047-08-28 05:31	< 1 min	0.0365419	0.0365389	0.0000010
EARTH	2047-11-11 10:52	< 1 s	0.1194286	0.1194244	0.0000014
MERCURY	2050-02-27 00:28	< 1 min	0.0374168	0.0374133	0.0000012
VENUS	2056-07-25 04:38	< 1 min	0.0480024	0.0479893	0.0000044
EARTH	2058-02-07 09:32	< 1 min	0.1173891	0.1173806	0.0000028
MERCURY	2058-04-03 23:03	< 1 min	0.0437734	0.0437653	0.0000027
EARTH	2067-02-06 04:26	< 1 min	0.0749338	0.0749324	0.0000004
EARTH	2069-11-11 16:21	< 1 s	0.0942659	0.0942657	0.0000001
MERCURY	2079-06-13 23:17	< 1 min	0.0417620	0.0417557	0.0000021
EARTH	2080-02-06 05:30	< 1 min	0.1621022	0.1620949	0.0000024
MERCURY	2081-12-13 11:33	< 1 min	0.0420070	0.0419987	0.0000028
EARTH	2089-02-06 21:15	< 1 min	0.0422763	0.0422707	0.0000019
VENUS	2089-03-03 22:42	< 1 min	0.0313944	0.0313807	0.0000046
MERCURY	2090-01-17 23:35	< 1 min	0.0445945	0.0445850	0.0000032
EARTH	2091-11-13 06:35	< 1 min	0.1026139	0.1026104	0.0000012
MERCURY	2092-07-19 06:13	< 1 min	0.0431948	0.0431874	0.0000025
MERCURY	2100-08-21 23:53	< 1 min	0.0389715	0.0389690	0.0000008
EARTH	2100-11-15 04:37	< 1 min	0.1932968	0.1932941	0.0000009
EARTH	2102-02-05 18:31	< 1 min	0.1793716	0.1793664	0.0000017
EARTH	2111-02-08 00:37	< 1 min	0.0568120	0.0567968	0.0000051
EARTH	2113-11-13 05:43	< 1 min	0.0942189	0.0942164	0.0000008
MERCURY	2117-09-30 16:01	1.5	0.0463492	0.0463226	0.0000089
VENUS	2119-04-26 14:30	< 1 min	0.0489840	0.0489476	0.0000121
MERCURY	2120-03-31 14:31	< 1 min	0.0411673	0.0411430	0.0000081
EARTH	2124-02-08 05:21	< 1 min	0.1472349	0.1472153	0.0000065

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
256.24983502	35.22713537	0.03612022	MINIMUM
103.73233532	307.42271547	0.09461182	MINIMUM
179.32256394	351.08977428	0.38961820	SADDLE
0.05823458	171.05507667	0.64156958	SADDLE
0.29036193	351.52981717	1.35864689	SADDLE
180.28209306	171.58736582	2.38602798	MAXIMUM

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MOID Plots

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