Asteroids

2025RC2 help

Last update: 2025-09-14 18:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.280

Aphelion (Q)

1.366

Eccentricity (e)

0.660

Inclination (i)

0.4

deg

Orbit period (P)

272.7

Earth MOID

0.00413

U parameter

8.7

Next Earth close approach

Date

2025-09-18

Nominal distance (from Earth center)

0.01082

1618459

Maximum Brightness

18.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.4

mag

Diameter

14 - 30*

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

0.822945

1-sigma variation

0.000923

Unit

Eccentricity (e)

Value

0.660318

1-sigma variation

0.003361

Unit

Inclination (i)

Value

0.4343

1-sigma variation

0.0077

Unit

Long. of Ascending Node (Ω)

Value

207.9662

1-sigma variation

0.5696

Unit

Arg. of Perihelion (ω)

Value

291.8484

1-sigma variation

0.5921

Unit

Mean Anomaly (M)

Value

9.36978

1-sigma variation

0.32793

Unit

Perihelion distance

Value

0.279539

1-sigma variation

Unit

Aphelion distance

Value

1.366351

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.632244

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.382373

1-sigma variation

Unit

MOID

Value

0.004128

1-sigma variation

Unit

Orbit Period

Value

272.6810

1-sigma variation

Unit

U parameter

Value

8.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.52094E-7	3.08141E-6	6.33404E-6	-3.76761E-4	4.20284E-4	3.01558E-4
e	3.08141E-6	1.12948E-5	2.15914E-5	-1.20994E-3	1.37474E-3	1.10164E-3
i	6.33404E-6	2.15914E-5	5.89236E-5	-4.16720E-3	4.42634E-3	2.14549E-3
Ω	-3.76761E-4	-1.20994E-3	-4.16720E-3	3.24455E-1	-3.36227E-1	-1.22176E-1
ω	4.20284E-4	1.37474E-3	4.42634E-3	-3.36227E-1	3.50585E-1	1.38122E-1
M	3.01558E-4	1.10164E-3	2.14549E-3	-1.22176E-1	1.38122E-1	1.07538E-1

Date of computation: 2025-09-14 18:00 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

26.41

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

14 - 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

0.8

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.246264

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-13.429076

Unit

Source

[2]

Last Observation

Value

2025-09-14.275927

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

15 (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 2025RC2 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	1952-09-15 10:53	> 1 mo	0.1547150	0.0098879	0.6479320
EARTH	1954-07-10 23:49	> 1 w	0.1353116	0.0051164	0.5747254
EARTH	1955-09-18 08:06	366.0	0.0242535	0.0073143	0.4070726
VENUS	1957-04-09 07:12	> 1 d	0.0407373	0.0400712	0.0307595
EARTH	1957-07-07 04:32	> 1 d	0.0071051	0.0067839	0.0279584
EARTH	1958-09-15 11:36	> 1 d	0.1020507	0.0043289	0.1033143
EARTH	1960-07-06 23:24	> 1 d	0.1094777	0.0063882	0.1000325
EARTH	1984-09-14 12:07	961.5	0.1762641	0.1527756	0.0078322
EARTH	1986-07-12 11:22	137.6	0.1729776	0.1638508	0.0030424
VENUS	1987-03-22 17:12	253.5	0.0217739	0.0129290	0.0031858
EARTH	1987-09-18 20:05	75.4	0.0688346	0.0346633	0.0113972
EARTH	1989-07-08 15:57	669.9	0.0625844	0.0120861	0.0173287
EARTH	1990-09-17 14:09	916.8	0.0333247	0.0048906	0.0307853
EARTH	1992-07-06 17:45	295.1	0.0419938	0.0072032	0.0279559
EARTH	1993-09-14 01:02	> 1 d	0.1466830	0.0332011	0.0379194
MERCURY	1995-04-25 06:40	> 1 d	0.0366133	0.0298201	0.0476305
EARTH	1995-07-09 07:04	> 1 d	0.1486157	0.0660053	0.0275860
VENUS	2001-05-15 23:10	> 1 d	0.0245919	0.0089597	0.0420098
MERCURY	2003-07-03 09:39	> 1 d	0.0339173	0.0298765	0.0285482
MERCURY	2011-09-11 23:51	> 1 d	0.0372509	0.0295356	0.0231668
MERCURY	2012-06-28 13:48	> 1 d	0.0378191	0.0015539	0.0349237
VENUS	2015-07-09 23:38	> 1 d	0.0217220	0.0092155	0.0481631
EARTH	2019-09-14 19:45	> 1 d	0.1882643	0.1261539	0.0207060
MERCURY	2020-09-09 08:08	> 1 d	0.0120751	0.0006610	0.0443294
EARTH	2021-07-13 11:07	1323.3	0.1994360	0.1173603	0.0273717
EARTH	2022-09-18 12:10	433.2	0.1020671	0.0613206	0.0135899
EARTH	2024-07-09 20:04	457.0	0.1024835	0.0636556	0.0129634
EARTH	2025-09-18 09:24	< 1 min	0.0108061	0.0106786	0.0000425
MERCURY	2027-05-07 17:20	538.5	0.0313656	0.0302319	0.0034979
EARTH	2027-07-08 09:29	160.9	0.0260292	0.0204073	0.0018952
VENUS	2028-01-09 01:34	521.4	0.0455160	0.0377953	0.0079602
MERCURY	2028-02-23 23:59	> 1 d	0.0315136	0.0040268	0.0096371
EARTH	2028-09-17 00:45	512.3	0.0526383	0.0081735	0.0150840
EARTH	2030-07-07 08:07	281.6	0.0319583	0.0077020	0.0146712
EARTH	2031-09-15 21:28	1142.5	0.1163954	0.0363698	0.0267031
EARTH	2033-07-07 06:59	423.4	0.0972335	0.0320634	0.0218668
EARTH	2034-09-13 03:07	> 1 d	0.1886436	0.0853850	0.0344266
MERCURY	2035-08-15 04:03	> 1 d	0.0057617	0.0005936	0.0447307
EARTH	2036-07-09 06:19	> 1 d	0.1625238	0.1021729	0.0201303
VENUS	2038-06-24 04:16	634.5	0.0379141	0.0377879	0.0015025
MERCURY	2042-04-13 10:00	> 1 d	0.0315973	0.0302971	0.0059312
MERCURY	2043-01-30 01:25	> 1 d	0.0324102	0.0008905	0.0248401
VENUS	2061-01-15 04:48	> 1 d	0.0294266	0.0099417	0.0969363
MERCURY	2066-03-19 15:33	> 1 d	0.0338962	0.0014127	0.0644017
EARTH	2069-09-15 08:45	991.9	0.1771809	0.1552020	0.0073284
EARTH	2071-07-13 23:25	19.3	0.1964769	0.1907210	0.0019189
EARTH	2072-09-18 05:02	284.5	0.1031821	0.0623339	0.0136167
VENUS	2073-07-18 13:33	1128.5	0.0414096	0.0374430	0.0113102
MERCURY	2073-09-03 05:09	> 1 d	0.0066719	0.0007827	0.0251617
EARTH	2074-07-10 18:56	966.5	0.1132020	0.0533531	0.0200060
EARTH	2075-09-19 07:21	385.7	0.0257455	0.0034941	0.0313637
EARTH	2077-07-08 11:22	1037.9	0.0423305	0.0084314	0.0243576
EARTH	2078-09-18 01:47	864.2	0.0379468	0.0041087	0.0293691
EARTH	2080-07-07 04:41	492.9	0.0229169	0.0081242	0.0135941
MERCURY	2081-02-21 04:03	> 1 d	0.0073736	0.0006361	0.0181064
EARTH	2081-09-15 19:13	356.4	0.1099484	0.0723112	0.0125517
EARTH	2083-07-08 01:24	476.3	0.0970545	0.0693269	0.0092575
VENUS	2084-01-01 06:53	770.4	0.0415344	0.0368795	0.0051343
EARTH	2084-09-12 14:15	991.3	0.1942047	0.1490361	0.0150563
EARTH	2086-07-10 15:53	> 1 d	0.1726943	0.0824766	0.0301158
MERCURY	2087-10-20 17:51	> 1 d	0.0327018	0.0305909	0.0339209
MERCURY	2088-08-07 06:26	> 1 w	0.0318104	0.0017927	0.0782083
VENUS	2096-02-10 01:36	> 1 d	0.0108654	0.0105448	0.0365531
MERCURY	2111-09-25 08:23	> 1 mo	0.0087761	0.0012627	2.2728653
MERCURY	2118-05-25 14:35	> 1 mo	0.0477395	0.0299818	0.6996344
VENUS	2119-01-26 05:24	> 1 w	0.0411937	0.0369059	0.1946178
MERCURY	2119-03-13 01:34	> 1 mo	0.0110292	0.0012778	0.4927140
EARTH	2119-09-18 06:50	> 1 w	0.1579581	0.0038753	0.1772709
EARTH	2121-07-13 22:19	> 1 d	0.1751249	0.0152219	0.0686176
EARTH	2122-09-20 07:03	> 1 d	0.0863592	0.0045764	0.3150264
EARTH	2124-07-11 03:02	> 1 w	0.0997199	0.0089510	0.6027601
EARTH	2125-09-20 00:03	> 1 w	0.0157693	0.0028678	0.8317349
MERCURY	2125-11-10 12:34	> 1 mo	0.0377355	0.0309314	1.0572701

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
250.38791885	254.85009938	0.00412790	MINIMUM
111.04484570	184.06843452	0.00747809	MINIMUM
180.52522493	219.20837347	0.35217003	SADDLE
2.66398332	42.04929803	0.70805084	SADDLE
2.73934902	222.15022971	1.29353065	SADDLE
180.51534492	39.19143640	2.35365237	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out