Asteroids

2019FB2 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.590

Aphelion (Q)

1.258

Eccentricity (e)

0.361

Inclination (i)

11.3

deg

Orbit period (P)

324.3

Earth MOID

0.00146

U parameter

6.4

Next Earth close approach

Date

2027-03-29

Nominal distance (from Earth center)

0.04542

6794275

Maximum Brightness

22.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-03-31

Observatory

Catalina Sky Survey

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

0.923733

1-sigma variation

0.000033

Unit

Eccentricity (e)

Value

0.361498

1-sigma variation

0.000173

Unit

Inclination (i)

Value

11.2872

1-sigma variation

0.0073

Unit

Long. of Ascending Node (Ω)

Value

188.2991

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

237.5053

1-sigma variation

0.0019

Unit

Mean Anomaly (M)

Value

257.50822

1-sigma variation

0.17251

Unit

Perihelion distance

Value

0.589805

1-sigma variation

Unit

Aphelion distance

Value

1.257660

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.003062

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.329047

1-sigma variation

Unit

MOID

Value

0.001463

1-sigma variation

Unit

Orbit Period

Value

324.2782

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.05952E-9	5.63668E-9	2.38157E-7	-7.85458E-9	6.01326E-8	-5.61518E-6
e	5.63668E-9	3.00053E-8	1.26773E-6	-4.17413E-8	3.19480E-7	-2.98749E-5
i	2.38157E-7	1.26773E-6	5.35619E-5	-1.76366E-6	1.34993E-5	-1.26225E-3
Ω	-7.85458E-9	-4.17413E-8	-1.76366E-6	5.84133E-8	-4.46889E-7	4.16224E-5
ω	6.01326E-8	3.19480E-7	1.34993E-5	-4.46889E-7	3.42304E-6	-3.18642E-4
M	-5.61518E-6	-2.98749E-5	-1.26225E-3	4.16224E-5	-3.18642E-4	2.97593E-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

26.345

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

14 - 30*

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

2364

Unit

Source

[1]

Normalized RMS of residuals

Value

0.623559

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-03-31.24167

Unit

Source

[2]

Last Observation

Value

2019-04-07.32833

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

76 (2)

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 2019FB2 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	1953-04-03 04:59	> 1 d	0.1824062	0.0010263	0.1781797
EARTH	1960-03-30 13:46	> 1 d	0.0800573	0.0007727	0.1052899
EARTH	1967-03-29 17:29	20.4	0.0043636	0.0006533	0.0012446
EARTH	1982-03-29 08:39	170.2	0.0523079	0.0200159	0.0107655
EARTH	1997-04-05 02:46	1426.6	0.1558716	0.1348938	0.0070022
EARTH	1998-08-03 03:28	688.4	0.1808005	0.1793479	0.0009276
EARTH	2004-04-01 06:21	278.0	0.1277029	0.1094818	0.0060737
EARTH	2019-03-29 20:59	< 1 min	0.0054883	0.0054788	0.0000032
EARTH	2027-03-29 13:46	20.3	0.0454169	0.0376288	0.0025960
EARTH	2035-04-02 21:22	373.7	0.1367902	0.1295617	0.0024101
EARTH	2044-08-01 21:35	245.7	0.1758844	0.1758772	0.0000077
EARTH	2066-04-01 09:47	54.6	0.1090611	0.1054673	0.0011979
EARTH	2074-03-29 20:20	15.2	0.0091579	0.0074004	0.0005880
EARTH	2082-04-02 06:14	651.7	0.1319552	0.0904301	0.0138419
EARTH	2100-08-06 11:34	> 1 d	0.1744388	0.1734237	0.0055483
EARTH	2107-04-03 08:25	> 1 d	0.1330954	0.0088369	0.0562300
EARTH	2115-03-30 18:14	590.5	0.0250131	0.0021575	0.0670947
EARTH	2123-03-31 11:26	> 1 d	0.0254888	0.0021809	0.1243530

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
102.88518211	85.37550317	0.00096297	MINIMUM
264.98270784	208.75359903	0.17531317	MINIMUM
188.29855610	148.40432868	0.31116028	SADDLE
3.81545000	329.49241940	0.41737480	SADDLE
359.15331059	142.80208795	1.59768859	SADDLE
177.62126244	320.95254889	2.23727842	MAXIMUM

Download:

MOID Plots

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