Asteroids

2025DY29 help

Last update: 2025-11-24 19:20 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.927

Aphelion (Q)

1.271

Eccentricity (e)

0.157

Inclination (i)

4.1

deg

Orbit period (P)

420.9

Earth MOID

0.01616

U parameter

6.2

Next Earth close approach

Date

2033-09-09

Nominal distance (from Earth center)

0.1475

22065877

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-28

Observatory

Pan-STARRS 2, Haleakala

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

1.099113

1-sigma variation

0.000048

Unit

Eccentricity (e)

Value

0.156803

1-sigma variation

0.000069

Unit

Inclination (i)

Value

4.1142

1-sigma variation

0.0018

Unit

Long. of Ascending Node (Ω)

Value

169.8400

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

98.6115

1-sigma variation

0.0026

Unit

Mean Anomaly (M)

Value

136.49411

1-sigma variation

0.00884

Unit

Perihelion distance

Value

0.926769

1-sigma variation

Unit

Aphelion distance

Value

1.271457

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.103610

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.040562

1-sigma variation

Unit

MOID

Value

0.016158

1-sigma variation

Unit

Orbit Period

Value

420.8834

1-sigma variation

Unit

U parameter

Value

6.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.26054E-9	3.27267E-9	8.55237E-8	-1.90898E-8	1.21596E-7	-4.19932E-7
e	3.27267E-9	4.73937E-9	1.23890E-7	-2.76829E-8	1.76633E-7	-6.08363E-7
i	8.55237E-8	1.23890E-7	3.23981E-6	-7.24752E-7	4.63276E-6	-1.59102E-5
Ω	-1.90898E-8	-2.76829E-8	-7.24752E-7	1.63657E-7	-1.04825E-6	3.56086E-6
ω	1.21596E-7	1.76633E-7	4.63276E-6	-1.04825E-6	6.80004E-6	-2.27696E-5
M	-4.19932E-7	-6.08363E-7	-1.59102E-5	3.56086E-6	-2.27696E-5	7.81366E-5

Date of computation: 2025-11-24 19:20 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

25.204

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

24 - 50*

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

344

Unit

Source

[1]

Normalized RMS of residuals

Value

0.555571

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-28.386256

Unit

Source

[2]

Last Observation

Value

2025-04-01.074099

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025DY29 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1956-04-06 02:37	344.3	0.0623882	0.0512889	0.0039908
EARTH	1964-08-28 06:27	1162.6	0.0323595	0.0191408	0.0052105
EARTH	1979-04-04 09:15	386.0	0.0937257	0.0721736	0.0073441
EARTH	1987-03-23 21:22	> 1 d	0.1388048	0.1319949	0.0022902
EARTH	1987-06-03 15:21	> 1 d	0.1103613	0.1087553	0.0005378
EARTH	1987-10-15 05:02	> 1 d	0.1971395	0.1936626	0.0011623
EARTH	1995-09-02 11:32	407.3	0.0224485	0.0168761	0.0025678
EARTH	2002-04-01 17:16	264.6	0.1717866	0.1568781	0.0049802
EARTH	2010-08-06 02:56	> 1 d	0.0843411	0.0719973	0.0041164
EARTH	2025-04-21 06:14	< 1 min	0.0801230	0.0800221	0.0000336
EARTH	2033-09-09 11:29	180.2	0.1475013	0.1381038	0.0031334
EARTH	2040-04-07 12:43	389.1	0.0489323	0.0409601	0.0033058
EARTH	2048-08-29 04:25	1084.7	0.0275031	0.0158769	0.0048544
EARTH	2063-04-02 02:39	741.7	0.1499681	0.1103033	0.0133609
EARTH	2071-04-19 08:50	> 1 d	0.0787080	0.0364802	0.0167218
EARTH	2079-08-28 18:36	> 1 d	0.0338658	0.0144713	0.0170568
EARTH	2087-09-07 23:52	> 1 d	0.1062701	0.0301843	0.0259251
EARTH	2102-04-03 17:31	> 1 d	0.1172860	0.0367315	0.0730796
EARTH	2110-04-11 19:09	> 1 d	0.0504754	0.0377298	0.0431514
EARTH	2118-02-26 14:03	> 1 mo	0.1896308	0.0972330	0.0562171
EARTH	2118-07-10 20:34	> 1 mo	0.1076461	0.0449297	0.0288381

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
61.44248875	237.68343894	0.01615826	MINIMUM
298.68760231	96.57161691	0.03769194	MINIMUM
359.02269014	165.75398193	0.11412100	SADDLE
180.09207726	347.41614812	0.29823776	SADDLE
1.17896820	348.34077050	1.90950303	SADDLE
181.15043065	168.31538544	2.28780567	MAXIMUM

Download:

MOID Plots

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