Asteroids

2025TO help

Last update: 2025-10-03 02:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.724

Aphelion (Q)

1.172

Eccentricity (e)

0.236

Inclination (i)

4.1

deg

Orbit period (P)

337.1

Earth MOID

0.00340

U parameter

6.5

Next Earth close approach

Date

2036-04-20

Nominal distance (from Earth center)

0.16539

24741425

Maximum Brightness

29.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.9

mag

Diameter

7 - 15*

Taxonomic type

Rotation period (T)

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

0.947990

1-sigma variation

0.000054

Unit

Eccentricity (e)

Value

0.235820

1-sigma variation

0.000113

Unit

Inclination (i)

Value

4.0871

1-sigma variation

0.0026

Unit

Long. of Ascending Node (Ω)

Value

189.2133

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

299.3291

1-sigma variation

0.0132

Unit

Mean Anomaly (M)

Value

319.80016

1-sigma variation

0.01675

Unit

Perihelion distance

Value

0.724435

1-sigma variation

Unit

Aphelion distance

Value

1.171545

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.197323

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.010952

1-sigma variation

Unit

MOID

Value

0.003397

1-sigma variation

Unit

Orbit Period

Value

337.1353

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.87003E-9	-2.90735E-10	5.54743E-8	1.22502E-8	-7.05336E-7	5.46398E-7
e	-2.90735E-10	1.28417E-8	2.58487E-7	5.55647E-8	4.56842E-8	1.44838E-6
i	5.54743E-8	2.58487E-7	6.52742E-6	1.40811E-6	-1.41627E-5	4.15566E-5
Ω	1.22502E-8	5.55647E-8	1.40811E-6	3.04299E-7	-3.12460E-6	8.99894E-6
ω	-7.05336E-7	4.56842E-8	-1.41627E-5	-3.12460E-6	1.73396E-4	-1.37308E-4
M	5.46398E-7	1.44838E-6	4.15566E-5	8.99894E-6	-1.37308E-4	2.80514E-4

Date of computation: 2025-10-03 02:30 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

27.942

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

7 - 15*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.623525

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-01.401239

Unit

Source

[2]

Last Observation

Value

2025-10-02.424596

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

22 (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 2025TO 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	1958-05-24 08:54	> 1 d	0.0662772	0.0597190	0.0438366
EARTH	1959-09-14 15:42	> 1 mo	0.1202736	0.0280311	0.0649750
EARTH	1971-05-31 02:54	> 1 w	0.1111851	0.0560849	0.0500118
EARTH	1972-10-01 00:05	> 1 w	0.0687018	0.0057724	0.0542186
EARTH	1984-06-13 21:55	> 1 w	0.1323725	0.0606451	0.0281657
EARTH	1985-10-04 05:08	> 1 d	0.0423153	0.0031209	0.0565526
EARTH	1997-06-16 04:14	> 1 d	0.1346905	0.1198889	0.0049811
EARTH	1998-10-04 18:52	1109.5	0.0322562	0.0031272	0.0174693
EARTH	2010-05-23 13:26	345.0	0.0594437	0.0593122	0.0002351
EARTH	2011-08-28 16:10	> 1 d	0.1521642	0.1445858	0.0025390
EARTH	2011-11-26 10:44	> 1 d	0.1946641	0.1836425	0.0036780
EARTH	2024-04-02 11:44	802.1	0.1898214	0.1886391	0.0003951
EARTH	2024-07-07 19:55	429.9	0.1651634	0.1643403	0.0002745
EARTH	2025-10-05 06:46	< 1 min	0.0084421	0.0084250	0.0000057
EARTH	2036-04-20 19:51	> 1 d	0.1653862	0.1547249	0.0036200
EARTH	2036-06-28 06:27	> 1 d	0.1465889	0.1399752	0.0022195
EARTH	2037-10-04 19:48	130.9	0.0375857	0.0199254	0.0059100
EARTH	2047-06-01 12:22	467.6	0.1438030	0.1145777	0.0100430
EARTH	2048-08-18 09:03	> 1 d	0.1587535	0.1491806	0.0032406
EARTH	2059-05-31 12:28	> 1 d	0.1019453	0.0595398	0.0199681
EARTH	2060-10-04 10:33	899.5	0.0150634	0.0034388	0.0266892
EARTH	2071-05-25 18:34	> 1 w	0.0780317	0.0591270	0.2935866
EARTH	2072-09-28 05:18	> 1 mo	0.0758965	0.0079104	0.4794176
EARTH	2083-05-26 20:01	> 1 w	0.0672421	0.0597565	0.3340624
EARTH	2084-09-03 02:01	> 1 mo	0.1375910	0.0452126	0.3671463
EARTH	2084-11-13 03:31	> 1 mo	0.1777081	0.0400525	0.5629120
EARTH	2095-06-01 01:32	> 1 mo	0.1722520	0.0603471	0.8490781
EARTH	2096-08-02 14:49	> 1 mo	0.1701638	0.1628341	0.0442894
EARTH	2097-09-30 17:04	> 1 w	0.1614471	0.0040089	0.8889416
EARTH	2108-04-05 04:30	> 1 mo	0.1920551	0.1255181	0.2393832
EARTH	2108-07-12 04:05	> 1 mo	0.1613477	0.0972730	0.1163914
EARTH	2109-10-04 11:49	> 1 w	0.0755545	0.0038014	0.4110229
EARTH	2120-07-19 12:23	> 1 mo	0.1650977	0.1337374	0.0698934
EARTH	2121-10-03 01:24	> 1 w	0.1169607	0.0044210	0.6816875

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
256.16495583	271.50280764	0.00339664	MINIMUM
104.04260479	143.48414249	0.06102986	MINIMUM
178.31395975	206.35069483	0.16960107	SADDLE
0.61793573	27.45972349	0.26620341	SADDLE
2.53539647	209.83094925	1.73967467	SADDLE
181.92128681	29.21633854	2.15609910	MAXIMUM

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MOID Plots

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