Asteroids

2025SP15 help

Last update: 2025-09-29 04:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.508

Aphelion (Q)

1.114

Eccentricity (e)

0.374

Inclination (i)

2.6

deg

Orbit period (P)

266.7

Earth MOID

0.02118

U parameter

8.1

Next Earth close approach

Date

2025-10-09

Nominal distance (from Earth center)

0.04193

6272538

Maximum Brightness

20.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.9

mag

Diameter

28 - 60*

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

0.810896

1-sigma variation

0.000397

Unit

Eccentricity (e)

Value

0.373565

1-sigma variation

0.001176

Unit

Inclination (i)

Value

2.5938

1-sigma variation

0.0079

Unit

Long. of Ascending Node (Ω)

Value

46.7200

1-sigma variation

0.0617

Unit

Arg. of Perihelion (ω)

Value

115.4139

1-sigma variation

0.0434

Unit

Mean Anomaly (M)

Value

299.42728

1-sigma variation

0.11122

Unit

Perihelion distance

Value

0.507974

1-sigma variation

Unit

Aphelion distance

Value

1.113818

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.159357

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.409510

1-sigma variation

Unit

MOID

Value

0.021183

1-sigma variation

Unit

Orbit Period

Value

266.7142

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.57608E-7	-4.66342E-7	-2.98490E-6	-1.46947E-5	4.73580E-6	-4.35834E-5
e	-4.66342E-7	1.38228E-6	8.94968E-6	4.10560E-5	-1.19636E-5	1.29837E-4
i	-2.98490E-6	8.94968E-6	6.22561E-5	1.60331E-4	1.01157E-5	8.68047E-4
Ω	-1.46947E-5	4.10560E-5	1.60331E-4	3.80148E-3	-2.49880E-3	3.18541E-3
ω	4.73580E-6	-1.19636E-5	1.01157E-5	-2.49880E-3	1.88314E-3	-5.67071E-4
M	-4.35834E-5	1.29837E-4	8.68047E-4	3.18541E-3	-5.67071E-4	1.23705E-2

Date of computation: 2025-09-29 04:30 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

24.905

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

28 - 60*

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

0.8

Unit

Source

[1]

Normalized RMS of residuals

Value

0.420612

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-26.487201

Unit

Source

[2]

Last Observation

Value

2025-09-29.16173

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

13 (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 2025SP15 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	1955-08-30 08:29	> 1 d	0.1113369	0.1078053	0.0012168
VENUS	1961-12-26 03:14	297.8	0.0371925	0.0305571	0.0022603
EARTH	1963-08-11 13:53	265.6	0.0807143	0.0771797	0.0011805
EARTH	1966-10-10 23:25	304.0	0.1848620	0.1654906	0.0064603
VENUS	1969-01-18 05:03	1197.0	0.0259656	0.0167769	0.0115636
VENUS	1969-12-28 07:26	1117.9	0.0406819	0.0142632	0.0196549
EARTH	1971-08-03 18:01	> 1 d	0.0527972	0.0444883	0.0074256
EARTH	1974-10-13 00:34	361.2	0.1093568	0.0662230	0.0145704
EARTH	1979-07-31 04:50	42.2	0.0667014	0.0449402	0.0124102
EARTH	1982-10-13 04:13	547.7	0.0283872	0.0224549	0.0070198
EARTH	1987-08-01 02:38	428.8	0.1296555	0.0927625	0.0126195
EARTH	1990-10-10 03:23	1149.4	0.0375868	0.0251600	0.0049049
EARTH	1995-08-02 14:28	201.2	0.1887703	0.1791799	0.0032005
VENUS	1996-09-24 01:56	36.3	0.0182672	0.0177395	0.0004440
VENUS	1997-09-03 07:14	139.5	0.0297162	0.0265585	0.0010861
EARTH	1998-09-27 13:23	> 1 d	0.0888914	0.0771166	0.0039399
EARTH	2006-08-28 07:05	> 1 d	0.1101344	0.1015865	0.0029285
EARTH	2014-08-04 09:59	> 1 d	0.0566417	0.0450043	0.0143523
VENUS	2016-06-02 23:20	> 1 d	0.0401635	0.0180405	0.0397096
EARTH	2017-10-13 03:12	759.6	0.1039552	0.0212986	0.0316622
EARTH	2022-07-31 03:24	231.7	0.0986207	0.0719285	0.0093568
EARTH	2025-10-09 12:30	2.8	0.0419293	0.0414117	0.0001725
VENUS	2029-01-15 06:58	1157.6	0.0363938	0.0158306	0.0182776
EARTH	2033-09-09 01:31	> 1 w	0.1124802	0.1086707	0.0012918
EARTH	2041-08-08 22:44	> 1 d	0.0753313	0.0451072	0.0203686
EARTH	2044-10-12 00:48	1051.8	0.1368636	0.0356590	0.0347737
VENUS	2047-10-16 22:21	> 1 d	0.0186401	0.0185164	0.0011898
VENUS	2048-09-25 05:58	> 1 d	0.0302500	0.0158094	0.0603409
EARTH	2049-07-30 18:33	> 1 d	0.0662437	0.0445932	0.0492926
EARTH	2052-10-11 19:45	> 1 d	0.0219154	0.0198856	0.0402469
VENUS	2059-06-23 14:15	> 1 w	0.0460570	0.0190563	0.4517676
VENUS	2060-06-02 04:24	> 1 w	0.0175952	0.0166537	0.1545251
EARTH	2060-09-06 18:45	> 1 mo	0.1127000	0.0137917	0.0434424
EARTH	2068-08-05 00:56	> 1 mo	0.0614317	0.0451264	1.2609652
EARTH	2071-10-13 16:02	> 1 mo	0.1021592	0.0177444	3.0956489
EARTH	2076-07-30 17:26	> 1 mo	0.0931864	0.0454870	2.7995903
EARTH	2079-10-11 04:40	> 1 mo	0.0311593	0.0190029	2.0877724
EARTH	2087-09-02 05:00	> 1 mo	0.1126275	0.0939429	0.0390175
VENUS	2090-11-10 23:35	> 1 mo	0.0455285	0.0194013	1.7154522
EARTH	2095-07-31 08:41	> 1 mo	0.0547926	0.0448679	1.5319490
EARTH	2098-10-11 21:30	> 1 mo	0.0245505	0.0181938	2.1911097
EARTH	2106-08-15 17:10	> 1 mo	0.0913510	0.0481132	3.1330991
VENUS	2107-03-04 06:18	> 1 mo	0.0456456	0.0180721	8.0635802
EARTH	2109-10-13 23:16	> 1 mo	0.1141120	0.0176908	6.0193526
EARTH	2114-08-01 21:35	> 1 mo	0.1504716	0.0490090	3.5688976
EARTH	2117-09-23 19:55	> 1 mo	0.0981494	0.0048293	0.7045137
VENUS	2117-12-04 11:41	> 1 mo	0.0221607	0.0206666	0.7931306
VENUS	2118-11-14 06:02	> 1 mo	0.0439983	0.0190151	2.0582475
EARTH	2125-08-03 17:40	> 1 mo	0.0514521	0.0412363	0.3281973

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
232.52245696	278.69294888	0.02118264	MINIMUM
132.17013785	207.93962552	0.04559331	MINIMUM
180.84127407	242.21131159	0.11339721	SADDLE
4.11259684	65.17990685	0.48572825	SADDLE
4.35899201	245.51436337	1.51625875	SADDLE
182.01225270	62.99585033	2.10597510	MAXIMUM

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MOID Plots

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