Asteroids

2025QC1 help

Last update: 2025-08-24 13:31 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.625

Aphelion (Q)

1.201

Eccentricity (e)

0.315

Inclination (i)

7.3

deg

Orbit period (P)

318.7

Earth MOID

0.00484

U parameter

5.6

Next Earth close approach

Date

2025-08-27

Nominal distance (from Earth center)

0.01081

1617222

Maximum Brightness

19.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-08-19

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.913196

1-sigma variation

0.000012

Unit

Eccentricity (e)

Value

0.315329

1-sigma variation

0.000234

Unit

Inclination (i)

Value

7.3062

1-sigma variation

0.0074

Unit

Long. of Ascending Node (Ω)

Value

151.5819

1-sigma variation

0.0008

Unit

Arg. of Perihelion (ω)

Value

308.6389

1-sigma variation

0.0037

Unit

Mean Anomaly (M)

Value

4.56556

1-sigma variation

0.03052

Unit

Perihelion distance

Value

0.625239

1-sigma variation

Unit

Aphelion distance

Value

1.201154

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.302527

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.012326

1-sigma variation

Unit

MOID

Value

0.004840

1-sigma variation

Unit

Orbit Period

Value

318.7459

1-sigma variation

Unit

U parameter

Value

5.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.43547E-10	2.73427E-9	8.70770E-8	1.00073E-8	-4.38140E-8	3.57376E-7
e	2.73427E-9	5.46738E-8	1.73683E-6	1.98079E-7	-8.51469E-7	7.13691E-6
i	8.70770E-8	1.73683E-6	5.51824E-5	6.29539E-6	-2.70875E-5	2.26734E-4
Ω	1.00073E-8	1.98079E-7	6.29539E-6	7.19426E-7	-3.10321E-6	2.58630E-5
ω	-4.38140E-8	-8.51469E-7	-2.70875E-5	-3.10321E-6	1.34838E-5	-1.11230E-4
M	3.57376E-7	7.13691E-6	2.26734E-4	2.58630E-5	-1.11230E-4	9.31657E-4

Date of computation: 2025-08-24 13:31 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

26.181

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

15 - 30*

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

0.613797

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-16.591817

Unit

Source

[2]

Last Observation

Value

2025-08-23.258043

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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 2025QC1 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1953-05-06 13:20	> 1 d	0.1830588	0.1279455	0.0236462
EARTH	1954-08-24 16:01	> 1 d	0.0707154	0.0062774	0.0256176
EARTH	1960-05-03 15:57	205.5	0.1448634	0.1431403	0.0006022
EARTH	1961-08-26 17:37	175.7	0.0206397	0.0038706	0.0067790
EARTH	1967-05-04 23:00	648.6	0.1591646	0.1363526	0.0088593
EARTH	1968-08-25 03:09	1228.7	0.0579164	0.0167259	0.0138961
EARTH	1975-08-17 16:40	> 1 d	0.1198624	0.0840109	0.0120317
VENUS	1982-02-16 03:48	908.1	0.0289913	0.0248249	0.0043938
EARTH	1982-07-27 20:33	> 1 d	0.1841503	0.1760590	0.0027143
EARTH	2010-05-08 07:45	969.1	0.1695204	0.1629065	0.0022421
EARTH	2011-08-23 22:31	93.8	0.1559987	0.1491991	0.0022666
VENUS	2017-03-13 19:14	99.0	0.0266125	0.0248275	0.0007035
EARTH	2017-04-28 13:20	27.6	0.1334045	0.1314332	0.0006727
EARTH	2018-08-26 01:11	20.0	0.0853700	0.0839478	0.0004741
EARTH	2024-04-30 23:47	54.0	0.1242215	0.1239773	0.0000923
EARTH	2025-08-27 01:05	< 1 min	0.0108105	0.0107807	0.0000099
EARTH	2031-05-01 00:18	19.8	0.1325242	0.1320214	0.0001678
EARTH	2032-08-24 14:13	35.0	0.1196981	0.1169302	0.0009227
EARTH	2038-05-28 02:22	441.7	0.1917526	0.1912145	0.0001803
EARTH	2059-08-06 09:40	653.7	0.1582976	0.1547579	0.0011811
VENUS	2060-11-12 14:00	258.9	0.0498428	0.0460475	0.0012706
EARTH	2065-05-06 19:22	13.3	0.1756193	0.1748019	0.0002726
EARTH	2066-08-25 23:25	57.1	0.0513288	0.0490411	0.0007630
VENUS	2071-05-04 20:10	71.6	0.0323263	0.0292057	0.0010735
EARTH	2072-05-01 17:34	58.1	0.1222888	0.1222217	0.0000317
EARTH	2073-08-26 19:38	21.0	0.0494131	0.0471960	0.0007394
EARTH	2079-05-03 01:35	141.8	0.1514953	0.1481316	0.0011377
EARTH	2080-08-23 16:37	47.8	0.1542462	0.1512309	0.0010051
EARTH	2100-07-24 16:50	218.1	0.1897552	0.1895118	0.0000812
EARTH	2107-08-21 04:49	114.6	0.1054289	0.1036805	0.0005829
VENUS	2108-11-10 03:06	58.3	0.0326485	0.0319614	0.0002295
EARTH	2113-05-04 07:12	10.8	0.1275775	0.1269282	0.0002174
EARTH	2114-08-28 00:05	27.5	0.0425078	0.0389280	0.0011948
EARTH	2120-06-03 09:04	125.5	0.1967385	0.1958381	0.0003002

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
249.68774717	233.02283372	0.00483960	MINIMUM
104.27296624	119.29865805	0.12194384	MINIMUM
172.69576710	173.76605643	0.21555557	SADDLE
355.88535172	353.60357967	0.36736463	SADDLE
358.97266883	177.77992089	1.64144815	SADDLE
180.59994515	359.57096631	2.18204225	MAXIMUM

Download:

MOID Plots

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