Asteroids

2025FS2 help

Last update: 2025-03-28 13:33 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.504

Aphelion (Q)

1.332

Eccentricity (e)

0.451

Inclination (i)

0.9

deg

Orbit period (P)

321.2

Earth MOID

0.00233

U parameter

6.5

Next Earth close approach

Date

2032-03-26

Nominal distance (from Earth center)

0.19768

29571791

Maximum Brightness

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

28.1

mag

Diameter

6 - 14*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-03-22

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

0.917951

1-sigma variation

0.000047

Unit

Eccentricity (e)

Value

0.450729

1-sigma variation

0.000211

Unit

Inclination (i)

Value

0.8520

1-sigma variation

0.0006

Unit

Long. of Ascending Node (Ω)

Value

9.0913

1-sigma variation

0.0013

Unit

Arg. of Perihelion (ω)

Value

44.8736

1-sigma variation

0.0016

Unit

Mean Anomaly (M)

Value

126.06739

1-sigma variation

0.02915

Unit

Perihelion distance

Value

0.504204

1-sigma variation

Unit

Aphelion distance

Value

1.331698

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.446238

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.076039

1-sigma variation

Unit

MOID

Value

0.002329

1-sigma variation

Unit

Orbit Period

Value

321.2387

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.19109E-9	9.87531E-9	2.56849E-8	-4.83215E-8	-5.23618E-8	-1.36339E-6
e	9.87531E-9	4.46663E-8	1.14696E-7	-2.08961E-7	-2.50080E-7	-6.15871E-6
i	2.56849E-8	1.14696E-7	3.09713E-7	-6.36910E-7	-5.08231E-7	-1.58882E-5
Ω	-4.83215E-8	-2.08961E-7	-6.36910E-7	1.64416E-6	2.85123E-7	2.92901E-5
ω	-5.23618E-8	-2.50080E-7	-5.08231E-7	2.85123E-7	2.58735E-6	3.38208E-5
M	-1.36339E-6	-6.15871E-6	-1.58882E-5	2.92901E-5	3.38208E-5	8.49579E-4

Date of computation: 2025-03-24 19:37 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

28.094

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

6 - 14*

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

0.773309

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-03-22.219839

Unit

Source

[2]

Last Observation

Value

2025-03-24.3306

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

41 (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 2025FS2 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	1952-07-03 18:38	> 1 d	0.0793154	0.0108890	0.1120436
EARTH	1957-03-21 20:28	> 1 d	0.0494947	0.0051880	0.0553605
EARTH	1964-03-24 00:55	> 1 w	0.1345123	0.0087344	0.0796234
VENUS	1966-09-18 22:12	> 1 w	0.0443674	0.0327289	0.1133616
EARTH	1972-07-05 03:36	> 1 w	0.1001697	0.0106614	0.2154694
VENUS	1977-03-04 20:21	> 1 w	0.0452333	0.0326160	0.2330569
EARTH	1979-07-05 19:23	> 1 d	0.0474484	0.0107081	0.2697845
EARTH	1984-03-24 05:28	> 1 d	0.1303478	0.0024260	0.1539770
EARTH	1991-03-21 05:55	840.6	0.0186115	0.0027938	0.0631661
VENUS	1998-02-01 22:08	> 1 d	0.0356951	0.0323837	0.0165898
EARTH	1999-06-28 13:46	> 1 d	0.1751642	0.1115425	0.0212263
EARTH	2006-07-06 13:59	104.7	0.0136987	0.0105024	0.0046809
VENUS	2008-07-17 21:01	504.2	0.0327888	0.0327810	0.0001099
EARTH	2013-07-03 15:59	195.4	0.1029140	0.0906446	0.0040924
EARTH	2018-03-23 14:00	153.0	0.1006992	0.0903751	0.0034415
EARTH	2025-03-20 20:07	< 1 min	0.0027489	0.0027444	0.0000015
VENUS	2026-09-11 08:27	90.7	0.0404840	0.0376013	0.0010332
EARTH	2032-03-26 19:02	167.8	0.1976752	0.1879796	0.0032319
VENUS	2032-11-05 16:43	326.9	0.0367485	0.0323660	0.0024550
EARTH	2034-07-07 06:29	179.3	0.0377663	0.0237953	0.0049409
EARTH	2041-07-07 14:56	194.0	0.0861451	0.0719719	0.0047393
EARTH	2048-06-27 12:17	547.8	0.1895315	0.1836947	0.0019459
EARTH	2054-03-26 00:27	90.5	0.1473333	0.1460069	0.0004421
EARTH	2061-03-20 22:41	29.9	0.0408686	0.0310166	0.0032858
EARTH	2068-03-22 01:02	76.1	0.0474373	0.0388324	0.0028688
EARTH	2070-07-02 03:42	27.2	0.1945968	0.1918003	0.0009322
VENUS	2072-07-10 15:15	19.4	0.0309520	0.0307933	0.0000810
EARTH	2075-03-27 08:08	35.2	0.1829845	0.1825571	0.0001425
EARTH	2077-07-06 15:08	84.9	0.0601060	0.0552716	0.0016155
EARTH	2084-07-08 01:21	2.7	0.0560195	0.0476993	0.0027925
VENUS	2086-05-18 00:05	285.2	0.0442013	0.0375163	0.0025346
EARTH	2091-06-29 22:36	595.1	0.1803733	0.1728904	0.0024947
VENUS	2092-07-09 18:11	267.6	0.0350445	0.0325999	0.0014913
EARTH	2097-03-26 09:01	625.6	0.1516827	0.1412942	0.0034629
EARTH	2104-03-21 20:44	11.1	0.0514258	0.0359771	0.0051521
EARTH	2111-03-23 09:19	123.4	0.0228151	0.0144923	0.0027837
EARTH	2118-03-27 17:42	394.3	0.1682946	0.1428109	0.0084947
EARTH	2120-07-07 07:26	490.9	0.0722308	0.0414175	0.0104428

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
100.92416074	76.96432475	0.00232870	MINIMUM
256.27521589	183.35776927	0.01509732	MINIMUM
178.97151992	130.55810607	0.32128263	SADDLE
357.18185166	308.58700354	0.48520966	SADDLE
357.10268848	128.48988585	1.51461037	SADDLE
178.94821566	310.55508274	2.32082097	MAXIMUM

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MOID Plots

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