Asteroids

2026JC help

Last update: 2026-05-09 13:30 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.605

Aphelion (Q)

1.427

Eccentricity (e)

0.404

Inclination (i)

5.7

deg

Orbit period (P)

374.1

Earth MOID

0.00604

U parameter

7.2

Next Earth close approach

Date

2027-05-07

Nominal distance (from Earth center)

0.13301

19897997

Maximum Brightness

24.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.1

mag

Diameter

25 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-06

Observatory

ATLAS Chile, Rio Hurtado

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

1.016162

1-sigma variation

0.000172

Unit

Eccentricity (e)

Value

0.404212

1-sigma variation

0.000358

Unit

Inclination (i)

Value

5.6955

1-sigma variation

0.0064

Unit

Long. of Ascending Node (Ω)

Value

224.6331

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

243.7558

1-sigma variation

0.0031

Unit

Mean Anomaly (M)

Value

103.24667

1-sigma variation

0.05240

Unit

Perihelion distance

Value

0.605417

1-sigma variation

Unit

Aphelion distance

Value

1.426906

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.027085

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.270485

1-sigma variation

Unit

MOID

Value

0.006044

1-sigma variation

Unit

Orbit Period

Value

374.1474

1-sigma variation

Unit

U parameter

Value

7.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.96622E-8	6.12693E-8	1.09711E-6	9.38448E-8	-2.09177E-7	-9.02018E-6
e	6.12693E-8	1.28045E-7	2.30368E-6	1.95373E-7	-5.43039E-7	-1.86921E-5
i	1.09711E-6	2.30368E-6	4.15347E-5	3.51233E-6	-1.05395E-5	-3.35142E-4
Ω	9.38448E-8	1.95373E-7	3.51233E-6	2.99663E-7	-7.76908E-7	-2.86000E-5
ω	-2.09177E-7	-5.43039E-7	-1.05395E-5	-7.76908E-7	9.74896E-6	6.80972E-5
M	-9.02018E-6	-1.86921E-5	-3.35142E-4	-2.86000E-5	6.80972E-5	2.74545E-3

Date of computation: 2026-05-09 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

25.142

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

25 - 60*

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

0.7

Unit

Source

[1]

Normalized RMS of residuals

Value

0.617496

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-06.276958

Unit

Source

[2]

Last Observation

Value

2026-05-09.164141

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

47 (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 2026JC 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	1951-04-30 12:08	> 1 d	0.0846218	0.0063985	0.1065178
EARTH	1952-05-05 01:40	> 1 d	0.0921371	0.0065324	0.1094210
EARTH	1977-09-19 10:54	> 1 d	0.0970355	0.0691470	0.0302607
EARTH	1978-09-27 01:00	1307.1	0.1310087	0.0745832	0.0316900
VENUS	1981-12-06 10:25	> 1 d	0.0209123	0.0191163	0.0078428
VENUS	1985-01-07 06:07	> 1 d	0.0387621	0.0197877	0.0132408
EARTH	1986-05-03 21:07	1025.2	0.1738466	0.1486136	0.0084134
EARTH	1987-05-02 13:03	484.4	0.0084321	0.0055661	0.0050490
EARTH	1988-05-07 05:03	336.5	0.1411345	0.1325390	0.0028663
EARTH	2015-09-14 06:58	868.5	0.1927207	0.1530996	0.0135070
EARTH	2016-09-20 22:11	795.6	0.0739369	0.0724806	0.0024961
EARTH	2017-09-27 08:00	105.6	0.1677611	0.1376501	0.0103223
EARTH	2025-05-03 12:15	178.5	0.1767455	0.1722427	0.0015010
EARTH	2026-05-01 14:15	< 1 min	0.0170741	0.0170195	0.0000182
EARTH	2027-05-07 07:09	90.2	0.1330099	0.1283170	0.0015643
EARTH	2056-09-14 19:55	> 1 d	0.1587714	0.0790342	0.0333695
EARTH	2057-09-21 18:56	> 1 d	0.0737069	0.0729878	0.0050559
EARTH	2058-09-27 04:38	159.9	0.1769425	0.0849642	0.0357508
EARTH	2067-04-30 04:52	139.3	0.1044426	0.0058159	0.0388191
EARTH	2068-05-03 01:08	> 1 d	0.0465721	0.0055994	0.0372138
EARTH	2096-09-15 20:37	> 1 d	0.1400799	0.0731176	0.1221824
EARTH	2097-09-23 04:23	> 1 d	0.0831069	0.0728006	0.0707322
EARTH	2106-05-02 12:56	> 1 w	0.1556394	0.0085960	0.1826455
EARTH	2107-05-03 03:48	> 1 d	0.0056546	0.0051402	0.0801888
EARTH	2108-05-09 10:37	> 1 mo	0.1831119	0.0049648	1.2799620

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
88.97942048	116.05162046	0.00604381	MINIMUM
273.63430038	254.58563686	0.07357826	MINIMUM
1.63222731	6.21516908	0.38447752	SADDLE
181.34619980	184.80731317	0.42400895	SADDLE
0.60878389	184.67663910	1.62069998	SADDLE
179.89174107	3.84416922	2.40814191	MAXIMUM

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MOID Plots

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