Asteroids

2025YR7 help

Last update: 2026-01-11 13:31 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.895

Aphelion (Q)

1.554

Eccentricity (e)

0.269

Inclination (i)

9.3

deg

Orbit period (P)

494.7

Earth MOID

0.00767

U parameter

7.5

Next Earth close approach

Date

2030-05-28

Nominal distance (from Earth center)

0.16332

24432391

Maximum Brightness

24.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.9

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-12-26

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

1.224190

1-sigma variation

0.000428

Unit

Eccentricity (e)

Value

0.269152

1-sigma variation

0.000315

Unit

Inclination (i)

Value

9.2987

1-sigma variation

0.0092

Unit

Long. of Ascending Node (Ω)

Value

291.7716

1-sigma variation

0.0013

Unit

Arg. of Perihelion (ω)

Value

238.6999

1-sigma variation

0.0029

Unit

Mean Anomaly (M)

Value

287.70803

1-sigma variation

0.04593

Unit

Perihelion distance

Value

0.894697

1-sigma variation

Unit

Aphelion distance

Value

1.553683

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.302336

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.012325

1-sigma variation

Unit

MOID

Value

0.007670

1-sigma variation

Unit

Orbit Period

Value

494.7341

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.83163E-7	1.34672E-7	3.91650E-6	5.38413E-7	-1.22355E-6	1.96557E-5
e	1.34672E-7	9.90195E-8	2.87967E-6	3.95869E-7	-8.99425E-7	1.44519E-5
i	3.91650E-6	2.87967E-6	8.37465E-5	1.15125E-5	-2.61535E-5	4.20286E-4
Ω	5.38413E-7	3.95869E-7	1.15125E-5	1.58278E-6	-3.59786E-6	5.77790E-5
ω	-1.22355E-6	-8.99425E-7	-2.61535E-5	-3.59786E-6	8.23188E-6	-1.31327E-4
M	1.96557E-5	1.44519E-5	4.20286E-4	5.77790E-5	-1.31327E-4	2.10931E-3

Date of computation: 2026-01-11 13:31 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

25.872

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

18 - 40*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.748947

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-12-26.494273

Unit

Source

[2]

Last Observation

Value

2026-01-11.23226

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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 2025YR7 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	1957-01-03 02:38	> 1 mo	0.1632257	0.0007788	0.6472209
EARTH	1961-02-23 00:27	> 1 mo	0.1528265	0.0835423	0.3266871
EARTH	1965-06-01 00:58	> 1 w	0.1808604	0.1298875	0.3278274
EARTH	1984-01-18 01:46	> 1 w	0.0328821	0.0062262	0.0784002
EARTH	1988-05-28 08:02	> 1 d	0.1372799	0.1310019	0.0229636
EARTH	2003-01-02 01:33	> 1 d	0.1960183	0.0019671	0.0687556
EARTH	2007-03-07 22:03	> 1 w	0.1666209	0.1220162	0.0226891
EARTH	2026-01-12 15:07	< 1 min	0.0236522	0.0235779	0.0000248
EARTH	2030-05-28 21:46	1076.3	0.1633204	0.1433954	0.0077911
EARTH	2053-01-12 09:16	> 1 d	0.0249074	0.0079008	0.0773052
EARTH	2057-03-09 01:41	> 1 mo	0.1691552	0.1286879	0.0509116
EARTH	2061-05-30 16:10	> 1 w	0.1362624	0.1268248	0.1347871
EARTH	2088-01-13 18:05	> 1 mo	0.0198536	0.0087208	1.4981255
EARTH	2092-02-03 13:00	> 1 mo	0.1160065	0.0221601	3.4478964
EARTH	2096-04-10 14:02	> 1 mo	0.1783610	0.1672035	1.3676267
EARTH	2096-06-01 19:37	> 1 mo	0.1766513	0.1309331	6.2765805
EARTH	2100-05-31 16:07	> 1 mo	0.1273180	0.1250319	2.7136018

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
315.60391311	12.38827844	0.00766986	MINIMUM
60.98976786	144.62629053	0.13014891	MINIMUM
16.58623347	89.68083599	0.17823614	SADDLE
186.05641972	254.07977109	0.57542850	SADDLE
4.96941661	254.33677588	1.89603310	SADDLE
181.22393758	70.36378038	2.54250041	MAXIMUM

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MOID Plots

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