Asteroids

2025DY5 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.853

Aphelion (Q)

1.703

Eccentricity (e)

0.333

Inclination (i)

2.4

deg

Orbit period (P)

527.6

Earth MOID

0.00904

U parameter

7.7

Next Earth close approach

Date

2035-08-05

Nominal distance (from Earth center)

0.14551

21768071

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.5

mag

Diameter

21 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-23

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

1.277851

1-sigma variation

0.000668

Unit

Eccentricity (e)

Value

0.332708

1-sigma variation

0.000497

Unit

Inclination (i)

Value

2.4004

1-sigma variation

0.0029

Unit

Long. of Ascending Node (Ω)

Value

1.4751

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

231.8010

1-sigma variation

0.0060

Unit

Mean Anomaly (M)

Value

140.13707

1-sigma variation

0.10214

Unit

Perihelion distance

Value

0.852699

1-sigma variation

Unit

Aphelion distance

Value

1.703003

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.427147

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.055070

1-sigma variation

Unit

MOID

Value

0.009044

1-sigma variation

Unit

Orbit Period

Value

527.6171

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.46308E-7	3.31853E-7	1.94269E-6	2.64276E-7	3.97831E-6	-6.82327E-5
e	3.31853E-7	2.46751E-7	1.44449E-6	1.96671E-7	2.95819E-6	-5.07346E-5
i	1.94269E-6	1.44449E-6	8.45622E-6	1.14910E-6	1.73177E-5	-2.97002E-4
Ω	2.64276E-7	1.96671E-7	1.14910E-6	1.92633E-7	2.36021E-6	-4.04178E-5
ω	3.97831E-6	2.95819E-6	1.73177E-5	2.36021E-6	3.54830E-5	-6.08223E-4
M	-6.82327E-5	-5.07346E-5	-2.97002E-4	-4.04178E-5	-6.08223E-4	1.04316E-2

Date of computation: 2025-09-10 00:30 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

25.546

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

21 - 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

192

Unit

Source

[1]

Normalized RMS of residuals

Value

0.507863

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-23.289815

Unit

Source

[2]

Last Observation

Value

2025-03-10.207574

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

33 (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 2025DY5 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	1950-02-27 05:03	> 1 mo	0.1457598	0.0117397	2.8302465
EARTH	1960-07-28 04:08	> 1 d	0.0538564	0.0376147	0.0762430
EARTH	1963-03-07 06:46	> 1 mo	0.0322018	0.0099023	0.8421177
EARTH	1973-07-30 16:30	> 1 d	0.0739041	0.0369454	0.0705564
EARTH	1976-03-06 07:54	> 1 w	0.0368678	0.0098456	0.3235102
EARTH	1986-07-24 13:59	> 1 w	0.0393196	0.0364604	0.0414719
EARTH	1989-02-27 01:31	> 1 d	0.1531859	0.0108347	0.1214990
EARTH	1999-06-19 15:43	> 1 mo	0.1380211	0.0463713	0.0483629
MARS	2011-04-12 09:49	> 1 d	0.0482324	0.0304839	0.0440229
EARTH	2012-05-02 09:39	> 1 w	0.1556423	0.1185129	0.0131558
EARTH	2022-08-07 06:44	1013.2	0.1761536	0.1332775	0.0143950
EARTH	2025-03-12 14:10	< 1 min	0.0249366	0.0248316	0.0000350
EARTH	2035-08-05 11:26	> 1 d	0.1455106	0.0359512	0.0463207
EARTH	2038-03-15 20:42	> 1 w	0.0443990	0.0092698	0.0552494
EARTH	2051-04-24 19:48	> 1 w	0.1456104	0.1067236	0.0133705
EARTH	2064-06-05 08:31	> 1 mo	0.1529675	0.0773165	0.0315696
EARTH	2077-07-17 07:54	> 1 mo	0.0721690	0.0362504	0.1450243
EARTH	2080-02-28 02:13	> 1 w	0.1576463	0.0098234	0.1813096
EARTH	2090-07-27 12:26	> 1 w	0.0382712	0.0362732	0.0344326
EARTH	2093-03-05 04:39	> 1 w	0.0657268	0.0084229	0.1499989
EARTH	2103-08-03 18:08	> 1 d	0.0950925	0.0359042	0.0990677
EARTH	2106-03-11 16:58	> 1 w	0.0080630	0.0077405	0.0230999
EARTH	2116-07-25 20:52	> 1 mo	0.0413731	0.0375979	1.9340876
EARTH	2119-02-28 19:16	> 1 mo	0.1662920	0.0087150	8.5278587

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.25557247	66.15530070	0.00894698	MINIMUM
52.21077024	200.81030264	0.03654990	MINIMUM
3.10573146	134.63115298	0.16138203	SADDLE
181.32677244	312.37251639	0.71542495	SADDLE
2.30372215	313.50058688	1.84139578	SADDLE
181.11459546	132.23217566	2.71356548	MAXIMUM

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MOID Plots

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