Asteroids

2023RF9 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.910

Aphelion (Q)

2.177

Eccentricity (e)

0.410

Inclination (i)

2.0

deg

Orbit period (P)

700.4

Earth MOID

0.00612

U parameter

7.8

Next Earth close approach

Date

2046-10-08

Nominal distance (from Earth center)

0.02562

3832808

Maximum Brightness

22.5

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-13

Observatory

Pan-STARRS 1, 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

1.543446

1-sigma variation

0.001269

Unit

Eccentricity (e)

Value

0.410390

1-sigma variation

0.000529

Unit

Inclination (i)

Value

2.0145

1-sigma variation

0.0022

Unit

Long. of Ascending Node (Ω)

Value

179.7142

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

236.5511

1-sigma variation

0.0028

Unit

Mean Anomaly (M)

Value

279.79453

1-sigma variation

0.33865

Unit

Perihelion distance

Value

0.910031

1-sigma variation

Unit

Aphelion distance

Value

2.176861

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.662201

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.043593

1-sigma variation

Unit

MOID

Value

0.006124

1-sigma variation

Unit

Orbit Period

Value

700.3828

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.60979E-6	6.70785E-7	2.75924E-6	1.39731E-6	-3.50642E-6	-4.29666E-4
e	6.70785E-7	2.79510E-7	1.14975E-6	5.82249E-7	-1.46104E-6	-1.79038E-4
i	2.75924E-6	1.14975E-6	4.72963E-6	2.39447E-6	-6.00931E-6	-7.36462E-4
Ω	1.39731E-6	5.82249E-7	2.39447E-6	1.21552E-6	-3.04594E-6	-3.72954E-4
ω	-3.50642E-6	-1.46104E-6	-6.00931E-6	-3.04594E-6	7.65548E-6	9.35887E-4
M	-4.29666E-4	-1.79038E-4	-7.36462E-4	-3.72954E-4	9.35887E-4	1.14681E-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

25.64

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

20 - 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

588

Unit

Source

[1]

Normalized RMS of residuals

Value

0.700039

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-09.375899

Unit

Source

[2]

Last Observation

Value

2023-09-29.08741

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (1)

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 2023RF9 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	1971-11-28 14:09	> 1 mo	0.0791568	0.0497561	0.2389545
EARTH	1997-01-08 16:09	> 1 w	0.0944083	0.0341905	0.0922689
EARTH	1998-09-26 07:47	> 1 w	0.0460896	0.0053329	0.1690748
EARTH	2022-01-12 10:54	> 1 d	0.1311007	0.0878823	0.0146850
EARTH	2023-09-29 05:15	< 1 min	0.0271425	0.0270469	0.0000319
EARTH	2046-10-08 13:32	> 1 mo	0.0256207	0.0057642	0.1314902
EARTH	2070-01-16 02:40	> 1 mo	0.1749918	0.0340902	1.9521125
EARTH	2071-10-06 00:28	> 1 mo	0.0134218	0.0062563	1.5375803
EARTH	2099-01-09 03:05	> 1 mo	0.0861271	0.0333277	67.0686764
EARTH	2100-10-02 15:35	> 1 mo	0.0116349	0.0065230	51.4774677
EARTH	2124-01-06 17:55	> 1 mo	0.0479419	0.0321129	1682.2344737
EARTH	2125-09-22 14:27	> 1 mo	0.1073956	0.0044472	2175.0902408

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
328.88535866	268.75273091	0.00611909	MINIMUM
27.79415929	356.33362309	0.03411459	MINIMUM
359.22273227	313.92932362	0.08262589	SADDLE
179.33491781	133.61088150	1.16624666	SADDLE
358.26375308	132.48244215	1.92093083	SADDLE
179.26501941	313.57308898	3.16433981	MAXIMUM

Download:

MOID Plots

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