Asteroids

141527 2002FG7 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.565

Aphelion (Q)

2.462

Eccentricity (e)

0.627

Inclination (i)

9.2

deg

Orbit period (P)

680.0

Earth MOID

0.04100

U parameter

0.0

Next Earth close approach

Date

2028-03-22

Nominal distance (from Earth center)

0.19913

29789337

Maximum Brightness

18.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.8

mag

Diameter

500 - 1000*

Taxonomic type

Rotation period (T)

6.310

Discovery Information

Discovery Date

2002-03-28

Observatory

Haleakala-AMOS

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

1.513305

1-sigma variation

3.029E-9

Unit

Eccentricity (e)

Value

0.626740

1-sigma variation

2.679E-8

Unit

Inclination (i)

Value

9.2027

1-sigma variation

5.464E-6

Unit

Long. of Ascending Node (Ω)

Value

187.4633

1-sigma variation

8.238E-6

Unit

Arg. of Perihelion (ω)

Value

247.7223

1-sigma variation

8.966E-6

Unit

Mean Anomaly (M)

Value

294.30503

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.564856

1-sigma variation

Unit

Aphelion distance

Value

2.461754

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.205921

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.259280

1-sigma variation

Unit

MOID

Value

0.040999

1-sigma variation

Unit

Orbit Period

Value

679.9673

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.17600E-18	-3.12113E-17	6.71041E-16	-1.01473E-15	5.72557E-15	-2.09387E-14
e	-3.12113E-17	7.17568E-16	-1.23794E-14	1.27962E-14	-1.17193E-13	4.74714E-14
i	6.71041E-16	-1.23794E-14	2.98525E-11	-3.51135E-11	3.67473E-11	-1.04091E-12
Ω	-1.01473E-15	1.27962E-14	-3.51135E-11	6.78671E-11	-6.58062E-11	-3.07789E-13
ω	5.72557E-15	-1.17193E-13	3.67473E-11	-6.58062E-11	8.03918E-11	-7.31803E-12
M	-2.09387E-14	4.74714E-14	-1.04091E-12	-3.07789E-13	-7.31803E-12	4.89126E-11

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

6.306

6.310

Unit

Source

[2]

[1]

Quality

Value

Unit

Source

[2]

Amplitude

Value

0.91

0.97

Unit

mag

Source

[2]

[1]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

353

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

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

18.819

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

500 - 1000*

Unit

Source

[4]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Radar R

Unit

Source

[5]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2018 July-September, B.D. Warner
[2]	EARN	1.) Warner, B.D. (2015) MPB 42, 256-266. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2015 MARCH-JUNE)(35 NEAs)
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	Estimation	Estimated from absolute magnitude
[5]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

11307

Unit

Source

[1]

Unobserved

Value

1563

Unit

Source

[1]

Normalized RMS of residuals

Value

0.369103

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1990-07-23.33056

Unit

Source

[2]

Last Observation

Value

2021-07-07.351416

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

767 (7)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2015-03-17

Unit

Source

[3]

Last Observation

Value

2015-03-17

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

3 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 141527 2002FG7 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
VENUS	1959-02-11 17:13	< 1 min	0.0391454	0.0391432	0.0000007
EARTH	1961-03-09 04:16	< 1 min	0.0907638	0.0907605	0.0000011
EARTH	1974-03-20 00:19	< 1 min	0.1414830	0.1414804	0.0000009
EARTH	1977-08-31 18:21	< 1 min	0.0819462	0.0819460	0.0000001
EARTH	2015-03-13 10:11	< 1 s	0.0440258	0.0440258	0.0000000
EARTH	2018-08-24 01:36	< 1 s	0.1753315	0.1753311	0.0000001
EARTH	2028-03-22 19:27	< 1 s	0.1991294	0.1991287	0.0000002
EARTH	2031-09-04 08:00	< 1 min	0.0878697	0.0878694	0.0000001
EARTH	2069-03-13 05:23	< 1 min	0.0420511	0.0420506	0.0000001
EARTH	2072-08-23 07:20	< 1 min	0.1861608	0.1861597	0.0000004
EARTH	2082-03-22 15:03	< 1 min	0.1761386	0.1761355	0.0000010
EARTH	2085-09-03 04:28	< 1 min	0.0796105	0.0796098	0.0000002
VENUS	2096-11-29 18:45	< 1 min	0.0284164	0.0284162	0.0000001
EARTH	2123-03-11 19:00	1.1	0.0868531	0.0868137	0.0000131

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
57.43917708	69.93105208	0.04116532	MINIMUM
303.56245822	237.56909860	0.07942738	MINIMUM
0.57189580	334.60093034	0.43488549	SADDLE
180.23076410	152.62011289	1.46629307	SADDLE
359.45194072	152.32268548	1.57533526	SADDLE
179.59616021	332.31670940	3.43960011	MAXIMUM

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MOID Plots

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