Asteroids

2019XY help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.847

Aphelion (Q)

3.293

Eccentricity (e)

0.591

Inclination (i)

2.0

deg

Orbit period (P)

1087.7

Earth MOID

0.00525

U parameter

8.6

Next Earth close approach

Date

2025-11-28

Nominal distance (from Earth center)

0.14422

21575636

Maximum Brightness

26.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.8

mag

Diameter

7 - 16*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-12-03

Observatory

Mt. Lemmon 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

2.069815

1-sigma variation

0.008287

Unit

Eccentricity (e)

Value

0.590761

1-sigma variation

0.001223

Unit

Inclination (i)

Value

1.9807

1-sigma variation

0.0556

Unit

Long. of Ascending Node (Ω)

Value

249.4980

1-sigma variation

0.2640

Unit

Arg. of Perihelion (ω)

Value

240.4602

1-sigma variation

0.4789

Unit

Mean Anomaly (M)

Value

344.45820

1-sigma variation

1.57231

Unit

Perihelion distance

Value

0.847048

1-sigma variation

Unit

Aphelion distance

Value

3.292582

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.887862

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.056819

1-sigma variation

Unit

MOID

Value

0.005251

1-sigma variation

Unit

Orbit Period

Value

1087.6664

1-sigma variation

Unit

U parameter

Value

8.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.86756E-5	1.01392E-5	4.60767E-4	2.18764E-3	-3.96851E-3	-1.30298E-2
e	1.01392E-5	1.49694E-6	6.80269E-5	3.22980E-4	-5.85905E-4	-1.92371E-3
i	4.60767E-4	6.80269E-5	3.09143E-3	1.46775E-2	-2.66260E-2	-8.74213E-2
Ω	2.18764E-3	3.22980E-4	1.46775E-2	6.96863E-2	-1.26415E-1	-4.15061E-1
ω	-3.96851E-3	-5.85905E-4	-2.66260E-2	-1.26415E-1	2.29326E-1	7.52946E-1
M	-1.30298E-2	-1.92371E-3	-8.74213E-2	-4.15061E-1	7.52946E-1	2.47215E0

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

27.83

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

7 - 16*

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

2109

Unit

Source

[1]

Normalized RMS of residuals

Value

0.500873

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-12-03.39792

Unit

Source

[2]

Last Observation

Value

2019-12-07.290236

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

38 (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 2019XY 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
MARS	1974-12-13 14:09	> 1 w	0.0407901	0.0205040	0.1844243
EARTH	2016-11-28 04:14	> 1 d	0.1275138	0.0584673	0.0230226
EARTH	2019-12-09 04:50	< 1 min	0.0081460	0.0081326	0.0000045
EARTH	2022-12-09 16:31	> 1 d	0.0134041	0.0053885	0.0199155
EARTH	2025-11-28 05:39	> 1 d	0.1442242	0.0036938	0.0895592

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
332.47758878	336.54577621	0.00522780	MINIMUM
28.76646680	80.44574716	0.03147883	MINIMUM
1.00357629	29.14929598	0.14117095	SADDLE
0.75538855	208.65303139	1.86128252	SADDLE
180.20228094	207.93883723	2.27863353	SADDLE
180.16997141	27.91851078	4.27752313	MAXIMUM

Download:

MOID Plots

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