Asteroids

2025TP1 help

Last update: 2025-10-04 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.864

Aphelion (Q)

1.682

Eccentricity (e)

0.321

Inclination (i)

16.5

deg

Orbit period (P)

524.5

Earth MOID

0.00113

U parameter

6.9

Next Earth close approach

Date

2048-09-13

Nominal distance (from Earth center)

0.18761

28065377

Maximum Brightness

27.3

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

27.6

mag

Diameter

8 - 18*

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

1.272856

1-sigma variation

0.000191

Unit

Eccentricity (e)

Value

0.321236

1-sigma variation

0.000122

Unit

Inclination (i)

Value

16.5085

1-sigma variation

0.0046

Unit

Long. of Ascending Node (Ω)

Value

9.0580

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

295.5019

1-sigma variation

0.0037

Unit

Mean Anomaly (M)

Value

68.89707

1-sigma variation

0.01987

Unit

Perihelion distance

Value

0.863969

1-sigma variation

Unit

Aphelion distance

Value

1.681744

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.001562

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.324876

1-sigma variation

Unit

MOID

Value

0.001129

1-sigma variation

Unit

Orbit Period

Value

524.5267

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.64404E-8	2.32350E-8	8.73797E-7	-2.52479E-9	6.92786E-7	-3.79362E-6
e	2.32350E-8	1.48294E-8	5.57428E-7	-1.37361E-9	4.38344E-7	-2.41798E-6
i	8.73797E-7	5.57428E-7	2.09614E-5	-5.62289E-8	1.65457E-5	-9.09485E-5
Ω	-2.52479E-9	-1.37361E-9	-5.62289E-8	4.19275E-9	-1.03120E-7	2.77205E-7
ω	6.92786E-7	4.38344E-7	1.65457E-5	-1.03120E-7	1.39625E-5	-7.23309E-5
M	-3.79362E-6	-2.41798E-6	-9.09485E-5	2.77205E-7	-7.23309E-5	3.94989E-4

Date of computation: 2025-10-04 13:00 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

27.553

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

8 - 18*

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

0.674302

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-03.209109

Unit

Source

[2]

Last Observation

Value

2025-10-04.467904

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

62 (2)

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 2025TP1 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	1950-09-30 20:25	1097.7	0.0211583	0.0029636	0.0115711
EARTH	1960-04-26 04:21	99.3	0.1672705	0.1661507	0.0022152
EARTH	1967-09-25 18:25	> 1 d	0.0937490	0.0131604	0.0269325
EARTH	1977-04-25 05:27	782.9	0.1866265	0.1667366	0.0124437
EARTH	2008-10-07 01:44	> 1 d	0.0898515	0.0150816	0.0249271
EARTH	2025-10-02 05:07	< 1 min	0.0015065	0.0015049	0.0000005
EARTH	2048-09-13 03:51	> 1 d	0.1876055	0.0979586	0.0305853
EARTH	2058-10-07 10:09	> 1 d	0.0816912	0.0016362	0.0446688
EARTH	2081-09-17 02:22	1093.7	0.1648666	0.1456162	0.0064312
EARTH	2091-10-07 11:56	904.0	0.0758501	0.0414583	0.0114704
EARTH	2124-10-04 23:38	> 1 d	0.0272524	0.0013429	0.0359726

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
48.53375822	268.58895252	0.00112917	MINIMUM
293.48341437	116.47972496	0.18387397	MINIMUM
345.59294772	183.56249447	0.30480066	SADDLE
173.19140383	18.98107107	0.77540498	SADDLE
356.34652625	19.34540362	1.83257791	SADDLE
181.39129911	204.96287745	2.67721476	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2025TP1

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2074-10-02.574	78847.574	-1.785	1.24 ± 0.001	3.21E5	5.56E-7	5.96E-2	-7.40
2075-10-02.827	79212.827	-1.979	0.65 ± 0.004	2.86E5	4.64E-7	5.95E-2	-7.49
2082-10-02.592	81769.592	-1.955	1.10 ± 0.004	6.35E5	2.45E-7	5.96E-2	-7.82


Based on 62 optical observations (of which 2 are rejected as outliers) from 2025/10/03.209 to 2025/10/04.468.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.34 and 1.34 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20251004 131747.658 UTC.

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