Asteroids

2026DA1 help

Last update: 2026-04-16 12:46 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.018

Aphelion (Q)

1.381

Eccentricity (e)

0.151

Inclination (i)

0.7

deg

Orbit period (P)

479.8

Earth MOID

0.02857

U parameter

5.7

Next Earth close approach

Date

2047-03-22

Nominal distance (from Earth center)

0.11528

17245237

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.8

mag

Diameter

11 - 26*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-19

Observatory

Pan-STARRS 2, 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.199425

1-sigma variation

0.000029

Unit

Eccentricity (e)

Value

0.151426

1-sigma variation

0.000018

Unit

Inclination (i)

Value

0.6817

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

149.3630

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

2.1677

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

80.46844

1-sigma variation

0.00323

Unit

Perihelion distance

Value

1.017801

1-sigma variation

Unit

Aphelion distance

Value

1.381048

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.029647

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.369053

1-sigma variation

Unit

MOID

Value

0.028573

1-sigma variation

Unit

Orbit Period

Value

479.7974

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.18327E-10	5.03814E-10	2.23281E-9	2.83058E-10	9.05184E-9	-9.22539E-8
e	5.03814E-10	3.10180E-10	1.37466E-9	1.74282E-10	5.57265E-9	-5.67971E-8
i	2.23281E-9	1.37466E-9	6.09805E-9	8.36143E-10	2.46061E-8	-2.51694E-7
Ω	2.83058E-10	1.74282E-10	8.36143E-10	4.02731E-9	-7.76417E-10	-3.19260E-8
ω	9.05184E-9	5.57265E-9	2.46061E-8	-7.76417E-10	1.05907E-7	-1.02183E-6
M	-9.22539E-8	-5.67971E-8	-2.51694E-7	-3.19260E-8	-1.02183E-6	1.04012E-5

Date of computation: 2026-04-16 12:46 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

26.834

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

11 - 26*

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

0.597287

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-14.205749

Unit

Source

[2]

Last Observation

Value

2026-04-15.397119

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

65 (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 2026DA1 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	1966-02-08 17:32	656.4	0.0617936	0.0538963	0.0026328
EARTH	1978-12-22 05:30	> 1 mo	0.1538494	0.1351269	0.0062454
EARTH	1979-03-22 15:32	560.0	0.1399607	0.1138844	0.0086927
EARTH	1996-02-02 14:21	760.0	0.1199296	0.0865534	0.0111254
EARTH	2009-03-12 04:47	953.1	0.0594556	0.0495815	0.0032914
EARTH	2026-03-04 09:53	< 1 min	0.0331368	0.0331250	0.0000039
MARS	2041-05-04 17:58	1208.0	0.0367856	0.0360228	0.0003708
EARTH	2047-03-22 07:24	435.5	0.1152773	0.1007138	0.0048548
EARTH	2072-02-20 03:43	> 1 d	0.0339601	0.0271525	0.0022989
EARTH	2089-03-08 05:21	> 1 w	0.0360514	0.0048701	0.0191677
MARS	2097-09-07 03:09	> 1 mo	0.0430006	0.0284568	0.0090794
MARS	2110-12-18 21:30	> 1 w	0.0454782	0.0323957	0.0550143
EARTH	2114-02-08 04:07	> 1 d	0.1099972	0.0013069	0.1135885

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
4.52492941	51.66334271	0.02857335	MINIMUM
183.54689803	230.70789426	0.36999136	SADDLE
4.88761198	232.06635574	2.02871182	SADDLE
183.45347275	50.61565538	2.37017711	MAXIMUM

Download:

MOID Plots

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