Asteroids

2026AY1 help

Last update: 2026-02-02 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.860

Aphelion (Q)

1.063

Eccentricity (e)

0.106

Inclination (i)

8.9

deg

Orbit period (P)

344.4

Earth MOID

0.01202

U parameter

4.4

Next Earth close approach

Date

2041-08-22

Nominal distance (from Earth center)

0.13176

19710653

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.5

mag

Diameter

8 - 19*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-12

Observatory

JPL SynTrack Robotic Telescope, Auberry

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

0.961604

1-sigma variation

0.000002

Unit

Eccentricity (e)

Value

0.105578

1-sigma variation

0.000057

Unit

Inclination (i)

Value

8.8576

1-sigma variation

0.0049

Unit

Long. of Ascending Node (Ω)

Value

111.2902

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

116.7148

1-sigma variation

0.0028

Unit

Mean Anomaly (M)

Value

200.10990

1-sigma variation

0.00912

Unit

Perihelion distance

Value

0.860080

1-sigma variation

Unit

Aphelion distance

Value

1.063129

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.014501

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.110119

1-sigma variation

Unit

MOID

Value

0.012020

1-sigma variation

Unit

Orbit Period

Value

344.4237

1-sigma variation

Unit

U parameter

Value

4.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.59548E-12	-1.24897E-10	-1.07561E-8	3.05885E-10	5.49046E-9	-1.93153E-8
e	-1.24897E-10	3.25540E-9	2.78913E-7	-8.02934E-9	-1.55855E-7	5.19094E-7
i	-1.07561E-8	2.78913E-7	2.39036E-5	-6.87713E-7	-1.33182E-5	4.44316E-5
Ω	3.05885E-10	-8.02934E-9	-6.87713E-7	1.98202E-8	3.85731E-7	-1.28196E-6
ω	5.49046E-9	-1.55855E-7	-1.33182E-5	3.85731E-7	7.75999E-6	-2.52182E-5
M	-1.93153E-8	5.19094E-7	4.44316E-5	-1.28196E-6	-2.52182E-5	8.32223E-5

Date of computation: 2026-02-02 12:45 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

27.505

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

8 - 19*

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

[-]

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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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.785574

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-12.174575

Unit

Source

[2]

Last Observation

Value

2026-01-16.76194

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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

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 2026AY1 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1960-07-31 10:42	694.5	0.0960068	0.0954650	0.0002191
EARTH	1960-11-13 15:34	1180.3	0.1664630	0.1646078	0.0006281
EARTH	1962-01-14 01:48	36.0	0.1675179	0.1626975	0.0016071
EARTH	1975-09-02 04:52	119.4	0.1890517	0.1858072	0.0010873
EARTH	1976-06-22 10:14	1019.1	0.1543374	0.1524270	0.0006473
EARTH	1977-01-11 12:29	192.6	0.0442674	0.0403064	0.0013279
EARTH	1991-08-31 00:48	14.9	0.1774539	0.1768181	0.0002121
EARTH	1992-06-20 13:30	264.0	0.1556633	0.1553089	0.0001186
EARTH	1993-01-11 12:15	72.3	0.0441299	0.0424732	0.0005534
EARTH	2008-07-29 08:50	89.7	0.0938917	0.0938131	0.0000267
EARTH	2008-11-06 13:20	235.9	0.1683422	0.1678550	0.0001626
EARTH	2010-01-14 08:06	5.8	0.1436734	0.1425102	0.0003878
EARTH	2024-08-23 15:43	40.1	0.1368572	0.1365927	0.0000884
EARTH	2025-06-08 10:19	89.2	0.1719054	0.1715760	0.0001099
EARTH	2026-01-14 03:34	< 1 min	0.0131226	0.0131018	0.0000069
EARTH	2041-08-22 08:00	116.2	0.1317576	0.1304023	0.0004554
EARTH	2042-06-09 18:14	517.6	0.1694862	0.1685742	0.0003059
EARTH	2043-01-13 07:04	54.9	0.0272062	0.0257909	0.0004762
EARTH	2059-08-16 13:48	381.6	0.1066746	0.1034893	0.0011090
EARTH	2060-06-01 11:09	> 1 d	0.1773184	0.1752932	0.0006937
EARTH	2061-01-13 14:54	166.5	0.0157520	0.0130551	0.0014462
EARTH	2078-08-12 13:20	> 1 d	0.0955886	0.0868907	0.0184773
EARTH	2079-05-31 14:09	> 1 w	0.1775227	0.1574119	0.0152041
EARTH	2080-01-13 16:15	> 1 d	0.0252892	0.0138222	0.0390342
EARTH	2098-08-16 15:24	> 1 w	0.1139110	0.0882608	0.1166594
EARTH	2099-06-14 19:16	> 1 mo	0.1572818	0.1337756	0.0803722
EARTH	2100-01-06 01:16	> 1 mo	0.0831850	0.0276170	0.1827483
EARTH	2119-07-30 19:57	> 1 w	0.0826605	0.0818912	0.0048981
EARTH	2120-05-13 15:57	> 1 w	0.1905915	0.1842542	0.0056288
EARTH	2121-01-15 06:40	1100.2	0.0222787	0.0137923	0.0265445

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
251.47098993	12.27809638	0.01202015	MINIMUM
78.80902098	211.84310107	0.09212771	MINIMUM
159.71074883	289.40807717	0.16834931	SADDLE
348.66151954	113.19326838	0.20169282	SADDLE
4.94605363	311.65432815	1.84570698	SADDLE
189.22403363	135.99022693	2.07083909	MAXIMUM

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MOID Plots

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