Asteroids

2026DY7 help

Last update: 2026-03-08 13:30 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.911

Aphelion (Q)

1.676

Eccentricity (e)

0.296

Inclination (i)

5.4

deg

Orbit period (P)

537.3

Earth MOID

0.02238

U parameter

7.6

Next Earth close approach

Date

2048-07-04

Nominal distance (from Earth center)

0.07975

11930241

Maximum Brightness

23.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.1

mag

Diameter

16 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-23

Observatory

Mt. Lemmon 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.293454

1-sigma variation

0.000640

Unit

Eccentricity (e)

Value

0.296016

1-sigma variation

0.000427

Unit

Inclination (i)

Value

5.4143

1-sigma variation

0.0071

Unit

Long. of Ascending Node (Ω)

Value

334.0553

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

245.4326

1-sigma variation

0.0035

Unit

Mean Anomaly (M)

Value

33.06832

1-sigma variation

0.01944

Unit

Perihelion distance

Value

0.910571

1-sigma variation

Unit

Aphelion distance

Value

1.676338

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.334881

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.061603

1-sigma variation

Unit

MOID

Value

0.022383

1-sigma variation

Unit

Orbit Period

Value

537.3102

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.09237E-7	2.73243E-7	4.51588E-6	-5.14694E-8	2.24611E-6	-1.24366E-5
e	2.73243E-7	1.82442E-7	3.01521E-6	-3.43657E-8	1.49973E-6	-8.30379E-6
i	4.51588E-6	3.01521E-6	4.98355E-5	-5.67442E-7	2.47867E-5	-1.37237E-4
Ω	-5.14694E-8	-3.43657E-8	-5.67442E-7	6.75108E-9	-2.82630E-7	1.56404E-6
ω	2.24611E-6	1.49973E-6	2.47867E-5	-2.82630E-7	1.23341E-5	-6.82614E-5
M	-1.24366E-5	-8.30379E-6	-1.37237E-4	1.56404E-6	-6.82614E-5	3.77946E-4

Date of computation: 2026-03-08 13:30 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

26.097

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

16 - 40*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.462768

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-23.229549

Unit

Source

[2]

Last Observation

Value

2026-03-08.07677

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

41 (0)

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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2026DY7 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	1951-06-18 15:40	> 1 mo	0.1038394	0.0824466	0.1296910
EARTH	1954-03-05 10:15	> 1 w	0.0261898	0.0206065	0.1150638
EARTH	1976-06-18 01:44	> 1 d	0.1043454	0.0801840	0.0127478
EARTH	1979-03-01 16:35	> 1 d	0.0682617	0.0199656	0.0510757
EARTH	1998-07-11 11:59	> 1 d	0.1331066	0.0793646	0.1008559
EARTH	2001-03-29 13:26	> 1 mo	0.0943650	0.0006771	0.0867662
EARTH	2023-07-03 07:40	> 1 d	0.0801625	0.0801483	0.0002304
EARTH	2026-03-08 09:41	< 1 min	0.0233056	0.0232146	0.0000303
EARTH	2048-07-04 00:56	> 1 w	0.0797487	0.0789618	0.0138189
EARTH	2051-03-12 17:49	> 1 w	0.0414506	0.0217545	0.1052309
EARTH	2076-06-21 04:23	> 1 w	0.0989687	0.0787514	0.0306271
EARTH	2079-03-06 10:02	> 1 d	0.0287676	0.0232655	0.0320917
EARTH	2101-06-11 16:15	> 1 mo	0.1134313	0.0767577	0.0599907
EARTH	2104-03-01 01:52	> 1 w	0.0925879	0.0217076	0.1345016
EARTH	2123-07-13 03:19	286.0	0.1214633	0.0986560	0.0082111
EARTH	2126-03-29 03:50	> 1 w	0.0905062	0.0255799	0.0219234

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
319.83580400	61.42624375	0.02238273	MINIMUM
47.16362192	176.42173720	0.07932947	MINIMUM
7.49392625	124.30549370	0.12999523	SADDLE
182.45555816	297.30908156	0.69268281	SADDLE
3.24172008	298.48308618	1.90131803	SADDLE
181.43311074	116.56400442	2.68130612	MAXIMUM

Download:

MOID Plots

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