Asteroids

2025CT1 help

Last update: 2025-02-22 05:33 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.861

Aphelion (Q)

1.095

Eccentricity (e)

0.119

Inclination (i)

1.7

deg

Orbit period (P)

353.4

Earth MOID

0.02707

U parameter

5.6

Next Earth close approach

Date

2025-03-13

Nominal distance (from Earth center)

0.04963

7424410

Maximum Brightness

21.2

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

23 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-05

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.978184

1-sigma variation

0.000016

Unit

Eccentricity (e)

Value

0.119351

1-sigma variation

0.000150

Unit

Inclination (i)

Value

1.6674

1-sigma variation

0.0020

Unit

Long. of Ascending Node (Ω)

Value

109.2844

1-sigma variation

0.0102

Unit

Arg. of Perihelion (ω)

Value

174.7480

1-sigma variation

0.0075

Unit

Mean Anomaly (M)

Value

313.05299

1-sigma variation

0.01328

Unit

Perihelion distance

Value

0.861437

1-sigma variation

Unit

Aphelion distance

Value

1.094931

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.110592

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.154385

1-sigma variation

Unit

MOID

Value

0.027069

1-sigma variation

Unit

Orbit Period

Value

353.3695

1-sigma variation

Unit

U parameter

Value

5.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.60582E-10	-2.41781E-9	-3.14910E-8	-1.58188E-7	1.20179E-7	-2.13096E-7
e	-2.41781E-9	2.25309E-8	2.94829E-7	1.49235E-6	-1.12598E-6	1.97045E-6
i	-3.14910E-8	2.94829E-7	3.88539E-6	1.99020E-5	-1.48367E-5	2.54525E-5
Ω	-1.58188E-7	1.49235E-6	1.99020E-5	1.03989E-4	-7.60367E-5	1.26008E-4
ω	1.20179E-7	-1.12598E-6	-1.48367E-5	-7.60367E-5	5.68559E-5	-9.73864E-5
M	-2.13096E-7	1.97045E-6	2.54525E-5	1.26008E-4	-9.73864E-5	1.76489E-4

Date of computation: 2025-02-19 16:27 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

25.306

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

23 - 50*

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

0.649585

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-03.48516

Unit

Source

[2]

Last Observation

Value

2025-02-19.44055

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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

Close Approaches for 2025CT1 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	1969-10-24 03:29	268.0	0.0308798	0.0293339	0.0088167
EARTH	1970-08-02 19:36	> 1 w	0.1468498	0.1364440	0.0037688
EARTH	1971-01-08 06:06	> 1 w	0.1102370	0.1100934	0.0002131
EARTH	1971-06-04 23:32	> 1 w	0.1440822	0.1315499	0.0043108
EARTH	1972-03-18 01:04	222.6	0.0275477	0.0265064	0.0028905
EARTH	1995-10-27 19:56	60.6	0.1194143	0.1116383	0.0025971
EARTH	1996-09-13 18:31	> 1 d	0.1075657	0.1022474	0.0017839
EARTH	1996-11-30 15:49	> 1 d	0.0902548	0.0867992	0.0011647
EARTH	1997-07-04 03:57	> 1 d	0.1575019	0.1570080	0.0001695
EARTH	1998-02-18 16:39	> 1 d	0.0798946	0.0732926	0.0022304
EARTH	1999-03-15 19:34	139.9	0.1366254	0.1245325	0.0040394
EARTH	2022-10-24 21:11	1.4	0.0485816	0.0481428	0.0001470
EARTH	2023-08-18 22:28	235.1	0.1346366	0.1340666	0.0001900
EARTH	2023-12-23 16:54	151.2	0.1076588	0.1072197	0.0001464
EARTH	2024-06-19 01:47	110.2	0.1523494	0.1519093	0.0001467
EARTH	2025-03-13 16:19	< 1 min	0.0496291	0.0494703	0.0000529
EARTH	2026-03-15 02:53	8.0	0.1641652	0.1638526	0.0001042
EARTH	2051-10-24 01:13	9.2	0.0306995	0.0284315	0.0016158
EARTH	2052-08-13 16:47	> 1 d	0.1362197	0.1308560	0.0018041
EARTH	2052-12-24 15:48	> 1 d	0.1099505	0.1079959	0.0006782
EARTH	2053-06-20 01:06	> 1 d	0.1502728	0.1490120	0.0004386
EARTH	2054-03-06 19:24	> 1 d	0.0638073	0.0481941	0.0055136
EARTH	2055-03-17 03:16	464.5	0.1299537	0.1053180	0.0082547
EARTH	2082-10-25 05:44	982.5	0.1082281	0.0450127	0.0223761
EARTH	2083-11-16 23:02	> 1 w	0.0785102	0.0451883	0.0128200
EARTH	2084-07-17 00:07	> 1 w	0.1516742	0.1480833	0.0013574
EARTH	2085-01-21 14:14	> 1 w	0.1075639	0.0997866	0.0028635
EARTH	2085-05-23 02:42	> 1 w	0.1312303	0.1146652	0.0057064
EARTH	2086-03-19 08:01	7.7	0.0373751	0.0276386	0.0095461
EARTH	2111-10-29 09:49	> 1 d	0.1663922	0.0277388	0.1166418
EARTH	2112-10-29 08:10	> 1 mo	0.0495161	0.0283992	0.0929445
EARTH	2113-07-24 08:25	> 1 mo	0.1517754	0.1349608	0.0130025
EARTH	2114-01-19 04:00	> 1 mo	0.1067024	0.0893470	0.0157611
EARTH	2114-05-24 23:32	> 1 mo	0.1339031	0.0773074	0.0355137
EARTH	2115-03-19 06:08	> 1 d	0.0508902	0.0284238	0.0862640

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
260.47545673	74.66744674	0.02706941	MINIMUM
98.62974862	288.04034412	0.02850138	MINIMUM
179.49474018	1.33201117	0.11131742	SADDLE
359.53382098	181.29921723	0.15488677	SADDLE
359.74155002	1.53691128	1.84508425	SADDLE
179.81466312	181.61075108	2.11122998	MAXIMUM

Download:

MOID Plots

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