Asteroids

2019FB help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.959

Aphelion (Q)

3.635

Eccentricity (e)

0.582

Inclination (i)

3.2

deg

Orbit period (P)

1271.6

Earth MOID

0.01021

U parameter

7.5

Next Earth close approach

Date

2026-01-27

Nominal distance (from Earth center)

0.03807

5695919

Maximum Brightness

21.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.8

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-03-16

Observatory

Palomar Mountain--ZTF

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

2.296981

1-sigma variation

0.001769

Unit

Eccentricity (e)

Value

0.582410

1-sigma variation

0.000360

Unit

Inclination (i)

Value

3.1848

1-sigma variation

0.0015

Unit

Long. of Ascending Node (Ω)

Value

166.6308

1-sigma variation

0.0015

Unit

Arg. of Perihelion (ω)

Value

345.2781

1-sigma variation

0.0028

Unit

Mean Anomaly (M)

Value

335.66758

1-sigma variation

0.82133

Unit

Perihelion distance

Value

0.959197

1-sigma variation

Unit

Aphelion distance

Value

3.634766

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.022458

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

2.467898

1-sigma variation

Unit

MOID

Value

0.010207

1-sigma variation

Unit

Orbit Period

Value

1271.5536

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.12904E-6	6.36199E-7	2.69625E-6	-2.58899E-6	4.88137E-6	-1.45286E-3
e	6.36199E-7	1.29353E-7	5.48206E-7	-5.26394E-7	9.92477E-7	-2.95397E-4
i	2.69625E-6	5.48206E-7	2.32407E-6	-2.22808E-6	4.20283E-6	-1.25191E-3
Ω	-2.58899E-6	-5.26394E-7	-2.22808E-6	2.15386E-6	-4.05259E-6	1.20211E-3
ω	4.88137E-6	9.92477E-7	4.20283E-6	-4.05259E-6	7.63447E-6	-2.26650E-3
M	-1.45286E-3	-2.95397E-4	-1.25191E-3	1.20211E-3	-2.26650E-3	6.74585E-1

Date of computation: 2025-11-24 16:53 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

25.772

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

19 - 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

2481

Unit

Source

[1]

Normalized RMS of residuals

Value

0.553207

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-03-16.351938

Unit

Source

[2]

Last Observation

Value

2019-03-28.43928

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

53 (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 2019FB 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	1950-04-03 21:38	> 1 mo	0.1008646	0.0138147	0.6164404
EARTH	1981-04-01 00:05	> 1 w	0.0678300	0.0140766	0.2193222
EARTH	2019-03-15 04:03	< 1 min	0.0076382	0.0076261	0.0000040
EARTH	2026-01-27 04:52	> 1 w	0.0380749	0.0317478	0.0206934
EARTH	2092-02-28 18:33	> 1 mo	0.0282942	0.0229346	0.1169520
EARTH	2099-01-15 07:48	> 1 w	0.1227463	0.0369307	0.0673306

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
12.79947999	74.26225050	0.01020661	MINIMUM
351.31735153	33.27570154	0.03082959	MINIMUM
358.72055050	47.38198124	0.03365117	SADDLE
1.12065181	231.97624893	1.97074427	SADDLE
180.27555191	230.97680645	2.62319684	SADDLE
180.30516883	50.98741441	4.62451592	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out