Asteroids

348306 2005AY28 help

Last update: 2025-03-28 15:40 UTC

Orbital Properties

Epoch

60800.0

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

0.03612

U parameter

0.6

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

Object is not in priority 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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.872730

1-sigma variation

4.196E-9

Unit

Eccentricity (e)

Value

0.570251

1-sigma variation

3.525E-8

Unit

Inclination (i)

Value

5.8837

1-sigma variation

3.476E-6

Unit

Long. of Ascending Node (Ω)

Value

117.4310

1-sigma variation

1.532E-5

Unit

Arg. of Perihelion (ω)

Value

156.0293

1-sigma variation

1.548E-5

Unit

Mean Anomaly (M)

Value

210.55599

1-sigma variation

0.00004

Unit

Perihelion distance

Value

0.375055

1-sigma variation

Unit

Aphelion distance

Value

1.370405

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.245933

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.628582

1-sigma variation

Unit

MOID

Value

0.036120

1-sigma variation

Unit

Orbit Period

Value

297.7955

1-sigma variation

Unit

U parameter

Value

0.6

1-sigma variation

Unit

A₂

Value

-70.66258

1-sigma variation

9.11896

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	1.76066E-17	7.94028E-17	5.61453E-16	-4.85147E-15	9.30635E-15	-1.50313E-13	3.81150E-8
e	7.94028E-17	1.24259E-15	-1.81728E-15	2.78565E-15	4.04511E-14	-7.50915E-13	1.73206E-7
i	5.61453E-16	-1.81728E-15	1.20791E-11	7.51731E-12	-6.15950E-12	-7.68431E-12	2.78967E-6
Ω	-4.85147E-15	2.78565E-15	7.51731E-12	2.34657E-10	-2.35728E-10	1.52098E-11	-8.49661E-6
ω	9.30635E-15	4.04511E-14	-6.15950E-12	-2.35728E-10	2.39620E-10	-5.33909E-11	1.81709E-5
M	-1.50313E-13	-7.50915E-13	-7.68431E-12	1.52098E-11	-5.33909E-11	1.40742E-9	-3.29245E-4
A₂	3.81150E-8	1.73206E-7	2.78967E-6	-8.49661E-6	1.81709E-5	-3.29245E-4	8.31554E1

Date of computation: 2025-03-28 15:40 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

21.493

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

1219

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	5.2	0.0421837	0.0418524	0.0001114
EARTH	1959-11-11 23:31	5.4	0.0969668	0.0968581	0.0000369
VENUS	1963-09-05 05:40	15.7	0.0341828	0.0332828	0.0003005
VENUS	1967-02-14 18:47	13.1	0.0401246	0.0399880	0.0000477
EARTH	1970-02-06 13:06	7.3	0.1261703	0.1256842	0.0001621
MERCURY	1971-01-26 17:26	28.2	0.0494529	0.0489459	0.0001698
MERCURY	1973-07-26 23:32	16.7	0.0388579	0.0386008	0.0000881
EARTH	1979-02-03 20:59	6.0	0.1309925	0.1305940	0.0001328
EARTH	1981-11-10 16:13	< 1 min	0.1220023	0.1217785	0.0000747
MERCURY	1988-03-02 03:47	12.6	0.0386637	0.0384943	0.0000571
MERCURY	1990-08-31 18:23	10.7	0.0374247	0.0373368	0.0000300
VENUS	1991-05-12 19:39	5.4	0.0362987	0.0359896	0.0001031
EARTH	1992-02-07 19:49	< 1 min	0.0458494	0.0457017	0.0000493
VENUS	1994-10-22 18:16	3.8	0.0396752	0.0396460	0.0000099
EARTH	1994-11-13 18:51	2.4	0.1327497	0.1326336	0.0000387
EARTH	2001-02-01 14:52	1.3	0.1843789	0.1842984	0.0000268
EARTH	2003-11-11 22:23	< 1 min	0.1511836	0.1511452	0.0000128
EARTH	2014-02-07 07:13	< 1 s	0.0393904	0.0393903	0.0000000
MERCURY	2015-11-13 21:35	< 1 min	0.0483166	0.0483160	0.0000002
EARTH	2016-11-12 23:04	< 1 min	0.1225802	0.1225789	0.0000004
MERCURY	2018-05-14 22:12	< 1 min	0.0469180	0.0469114	0.0000022
EARTH	2023-02-02 02:14	< 1 min	0.1892200	0.1891893	0.0000102
EARTH	2025-11-11 08:57	< 1 min	0.1465220	0.1464883	0.0000112
MERCURY	2026-06-19 08:27	2.7	0.0466348	0.0465866	0.0000161
MERCURY	2028-12-18 16:43	2.1	0.0489751	0.0488954	0.0000266
EARTH	2036-02-08 05:26	< 1 min	0.0628570	0.0627374	0.0000399
MERCURY	2037-01-21 17:06	6.9	0.0371938	0.0371144	0.0000267
EARTH	2038-11-14 20:36	2.8	0.1519547	0.1518081	0.0000489
MERCURY	2039-07-24 11:45	6.9	0.0383218	0.0382175	0.0000352
EARTH	2045-02-03 05:26	4.8	0.1466887	0.1463945	0.0000981
MERCURY	2047-08-28 05:31	14.8	0.0365419	0.0363992	0.0000487
EARTH	2047-11-11 10:52	< 1 min	0.1194286	0.1192217	0.0000691
MERCURY	2050-02-27 00:28	14.5	0.0374168	0.0372488	0.0000578
VENUS	2056-07-25 04:38	11.5	0.0480024	0.0473626	0.0002134
EARTH	2058-02-07 09:32	4.8	0.1173891	0.1169706	0.0001395
MERCURY	2058-04-03 23:03	23.2	0.0437734	0.0433758	0.0001336
EARTH	2067-02-06 04:26	1.2	0.0749338	0.0748572	0.0000255
EARTH	2069-11-11 16:21	< 1 min	0.0942659	0.0942656	0.0000001
MERCURY	2079-06-13 23:17	17.4	0.0417620	0.0414790	0.0000951
EARTH	2080-02-06 05:30	9.2	0.1621022	0.1617646	0.0001126
MERCURY	2081-12-13 11:33	14.1	0.0420070	0.0416343	0.0001257
EARTH	2089-02-06 21:15	5.1	0.0422763	0.0420167	0.0000875
VENUS	2089-03-03 22:42	11.8	0.0313944	0.0307630	0.0002108
MERCURY	2090-01-17 23:35	25.1	0.0445945	0.0441576	0.0001468
EARTH	2091-11-13 06:35	4.9	0.1026139	0.1024556	0.0000530
MERCURY	2092-07-19 06:13	11.6	0.0431948	0.0428592	0.0001128
MERCURY	2100-08-21 23:53	6.1	0.0389715	0.0388550	0.0000391
EARTH	2100-11-15 04:37	5.5	0.1932968	0.1931635	0.0000444
EARTH	2102-02-05 18:31	7.9	0.1793716	0.1791299	0.0000806
EARTH	2111-02-08 00:37	11.0	0.0568120	0.0561059	0.0002365
EARTH	2113-11-13 05:43	9.7	0.0942189	0.0941070	0.0000394
MERCURY	2117-09-30 16:01	69.7	0.0463492	0.0451249	0.0004152
VENUS	2119-04-26 14:30	30.8	0.0489840	0.0472797	0.0005688
MERCURY	2120-03-31 14:31	44.6	0.0411673	0.0400698	0.0003811
EARTH	2124-02-08 05:21	19.8	0.1472349	0.1463136	0.0003072

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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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