Asteroids

2023RR9 help

Last update: 2025-02-19 13:28 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.981

Aphelion (Q)

2.387

Eccentricity (e)

0.417

Inclination (i)

3.2

deg

Orbit period (P)

798.1

Earth MOID

0.01992

U parameter

7.8

Next Earth close approach

Date

2058-07-03

Nominal distance (from Earth center)

0.05973

8934850

Maximum Brightness

22.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

16 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-13

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.683914

1-sigma variation

0.001612

Unit

Eccentricity (e)

Value

0.417450

1-sigma variation

0.000587

Unit

Inclination (i)

Value

3.2192

1-sigma variation

0.0035

Unit

Long. of Ascending Node (Ω)

Value

180.2670

1-sigma variation

0.0036

Unit

Arg. of Perihelion (ω)

Value

133.0813

1-sigma variation

0.0099

Unit

Mean Anomaly (M)

Value

285.21183

1-sigma variation

0.41058

Unit

Perihelion distance

Value

0.980964

1-sigma variation

Unit

Aphelion distance

Value

2.386864

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.948965

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.078789

1-sigma variation

Unit

MOID

Value

0.019918

1-sigma variation

Unit

Orbit Period

Value

798.1385

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.59703E-6	9.45199E-7	4.48318E-6	4.14251E-6	-1.24294E-5	-6.61658E-4
e	9.45199E-7	3.44251E-7	1.59883E-6	1.54633E-6	-4.61933E-6	-2.40802E-4
i	4.48318E-6	1.59883E-6	1.22315E-5	1.85163E-6	-8.45548E-6	-1.14374E-3
Ω	4.14251E-6	1.54633E-6	1.85163E-6	1.28896E-5	-3.51826E-5	-1.05359E-3
ω	-1.24294E-5	-4.61933E-6	-8.45548E-6	-3.51826E-5	9.74097E-5	3.16215E-3
M	-6.61658E-4	-2.40802E-4	-1.14374E-3	-1.05359E-3	3.16215E-3	1.68574E-1

Date of computation: 2025-02-19 13:28 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

26.036

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

16 - 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

[-]

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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

604

Unit

Source

[1]

Normalized RMS of residuals

Value

0.355341

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-13.404222

Unit

Source

[2]

Last Observation

Value

2023-09-15.287034

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

23 (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 2023RR9 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	1964-09-21 07:52	> 1 w	0.1436299	0.0148954	0.1244819
EARTH	1975-06-26 02:46	> 1 d	0.0774933	0.0567286	0.0162365
EARTH	1999-08-14 10:22	> 1 mo	0.0470673	0.0041184	0.0645128
EARTH	2023-09-04 04:43	5.2	0.0199749	0.0199037	0.0000237
EARTH	2058-07-03 11:41	> 1 mo	0.0597258	0.0550244	0.0721005
EARTH	2082-08-02 01:29	> 1 mo	0.0544672	0.0488292	0.0602944
EARTH	2106-08-19 18:46	> 1 mo	0.0426765	0.0087390	0.1539461
MARS	2121-07-03 04:25	> 1 w	0.0450640	0.0179491	0.2673512

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
17.71425730	239.69488297	0.02004298	MINIMUM
344.51264078	187.72612627	0.05448886	MINIMUM
352.64438074	200.45325574	0.05568614	SADDLE
179.41234769	30.97113741	1.40309099	SADDLE
358.82936804	30.22245209	1.96588144	SADDLE
179.59268501	211.07996975	3.40032277	MAXIMUM

Download:

MOID Plots

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