Asteroids

2026NN1 help

Last update: 2026-07-13 12:46 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.991

Aphelion (Q)

1.863

Eccentricity (e)

0.306

Inclination (i)

8.5

deg

Orbit period (P)

622.5

Earth MOID

0.01590

U parameter

7.1

Next Earth close approach

Date

2043-07-20

Nominal distance (from Earth center)

0.0925

13837303

Maximum Brightness

23.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.9

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-07-11

Observatory

University of Arizona 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

1.426845

1-sigma variation

0.000341

Unit

Eccentricity (e)

Value

0.305545

1-sigma variation

0.000171

Unit

Inclination (i)

Value

8.5196

1-sigma variation

0.0037

Unit

Long. of Ascending Node (Ω)

Value

110.2931

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

143.4293

1-sigma variation

0.0014

Unit

Mean Anomaly (M)

Value

359.87676

1-sigma variation

0.00181

Unit

Perihelion distance

Value

0.990880

1-sigma variation

Unit

Aphelion distance

Value

1.862811

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.730826

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.021949

1-sigma variation

Unit

MOID

Value

0.015896

1-sigma variation

Unit

Orbit Period

Value

622.5351

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.16390E-7	5.84891E-8	1.26211E-6	7.36706E-8	4.22683E-7	-6.11807E-7
e	5.84891E-8	2.93948E-8	6.33682E-7	3.70070E-8	2.11435E-7	-3.07037E-7
i	1.26211E-6	6.33682E-7	1.38318E-5	8.02460E-7	4.78024E-6	-6.71493E-6
Ω	7.36706E-8	3.70070E-8	8.02460E-7	4.67781E-8	2.72354E-7	-3.89211E-7
ω	4.22683E-7	2.11435E-7	4.78024E-6	2.72354E-7	1.91558E-6	-2.38448E-6
M	-6.11807E-7	-3.07037E-7	-6.71493E-6	-3.89211E-7	-2.38448E-6	3.28576E-6

Date of computation: 2026-07-13 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

25.854

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

18 - 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

0.693095

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-07-10.356408

Unit

Source

[2]

Last Observation

Value

2026-07-13.024863

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

54 (4)

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

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 2026NN1 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	1951-07-03 14:16	> 1 w	0.0324067	0.0150666	0.0790662
MARS	1979-12-07 21:31	804.2	0.0331267	0.0076552	0.0370256
EARTH	1980-06-23 15:30	> 1 w	0.0638392	0.0011491	0.0414307
EARTH	1997-07-25 15:50	> 1 d	0.1691247	0.0018121	0.0557709
EARTH	2009-05-02 13:05	> 1 d	0.1660378	0.1272250	0.0219608
EARTH	2026-07-07 17:46	< 1 min	0.0170984	0.0170739	0.0000082
EARTH	2043-07-20 06:42	> 1 d	0.0924967	0.0076846	0.0346703
MARS	2070-03-19 17:35	37.1	0.0225493	0.0058044	0.0057655
EARTH	2072-05-18 16:27	1176.4	0.1343901	0.1285833	0.0020098
EARTH	2089-07-05 16:24	> 1 d	0.0223835	0.0145240	0.0175088
EARTH	2106-06-12 00:41	> 1 w	0.0957599	0.0367977	0.0288431

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
24.03102717	181.93086766	0.01589559	MINIMUM
178.67395605	328.92257237	0.88530822	SADDLE
0.54808613	329.89523282	1.97472813	SADDLE
181.44052152	150.92537190	2.87493272	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out