Asteroids

2019DA1 help

Last update: 2025-01-22 06:31 UTC

Orbital Properties

Epoch

60600.0

MJD

Orbit type

Apollo

Perihelion (q)

0.798

Aphelion (Q)

2.008

Eccentricity (e)

0.431

Inclination (i)

5.7

deg

Orbit period (P)

607.0

Earth MOID

0.00150

U parameter

7.0

Next Earth close approach

Date

2029-02-26

Nominal distance (from Earth center)

0.12769

19101845

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.9

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-02-26

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

60600.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.403077

1-sigma variation

0.000114

Unit

Eccentricity (e)

Value

0.431071

1-sigma variation

0.000233

Unit

Inclination (i)

Value

5.7396

1-sigma variation

0.0064

Unit

Long. of Ascending Node (Ω)

Value

345.5256

1-sigma variation

0.0035

Unit

Arg. of Perihelion (ω)

Value

250.1063

1-sigma variation

0.0646

Unit

Mean Anomaly (M)

Value

105.50220

1-sigma variation

1.04889

Unit

Perihelion distance

Value

0.798252

1-sigma variation

Unit

Aphelion distance

Value

2.007902

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.331634

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.005709

1-sigma variation

Unit

MOID

Value

0.001502

1-sigma variation

Unit

Orbit Period

Value

607.0447

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.30666E-8	-2.66101E-8	-7.35897E-7	4.02974E-7	-7.38884E-6	1.19898E-4
e	-2.66101E-8	5.41923E-8	1.49867E-6	-8.20666E-7	1.50476E-5	-2.44172E-4
i	-7.35897E-7	1.49867E-6	4.14457E-5	-2.26954E-5	4.16136E-4	-6.75254E-3
Ω	4.02974E-7	-8.20666E-7	-2.26954E-5	1.24280E-5	-2.27874E-4	3.69767E-3
ω	-7.38884E-6	1.50476E-5	4.16136E-4	-2.27874E-4	4.17826E-3	-6.77996E-2
M	1.19898E-4	-2.44172E-4	-6.75254E-3	3.69767E-3	-6.77996E-2	1.10018E0

Date of computation: 2024-12-09 13:46 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

25.868

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

18 - 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

2150

Unit

Source

[1]

Normalized RMS of residuals

Value

0.46341

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-02-26.46461

Unit

Source

[2]

Last Observation

Value

2019-03-05.43225

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 2019DA1 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	1962-02-27 16:15	> 1 w	0.1052871	0.0018438	0.3042248
EARTH	1967-03-09 13:05	> 1 w	0.0298874	0.0003116	0.3186530
EARTH	1972-04-14 02:17	> 1 mo	0.1876252	0.0532123	0.1445547
EARTH	1982-07-10 09:49	> 1 mo	0.1597232	0.0553524	0.1449710
EARTH	1987-08-03 20:34	> 1 w	0.0681378	0.0621425	0.0631379
EARTH	2019-03-06 15:03	< 1 min	0.0092339	0.0092066	0.0000091
EARTH	2024-03-03 09:54	> 1 d	0.0438021	0.0007345	0.0306127
EARTH	2029-02-26 15:33	> 1 d	0.1276879	0.0488034	0.0262956
EARTH	2072-08-14 03:18	> 1 d	0.1947788	0.0664233	0.0483221
EARTH	2077-08-08 09:58	> 1 d	0.0965850	0.0581020	0.0410808
EARTH	2082-08-02 21:58	> 1 d	0.0595404	0.0587633	0.0072185
EARTH	2087-07-26 07:51	> 1 w	0.1063233	0.0569486	0.0483864
EARTH	2092-07-03 05:22	> 1 w	0.1807208	0.0643491	0.0423042
7 Iris	2106-04-08 04:45	> 1 d	0.0074078	0.0073913	0.0026806
EARTH	2112-04-04 12:30	> 1 w	0.1611361	0.0264756	0.0497547
EARTH	2117-03-16 05:53	> 1 w	0.0770311	0.0007836	0.0595150
EARTH	2122-03-08 13:17	> 1 d	0.0052511	0.0035122	0.0244725

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.77323678	63.41533499	0.00111541	MINIMUM
51.36814716	209.04621628	0.05992043	MINIMUM
3.25186621	138.02896691	0.23028854	SADDLE
181.06843028	314.70028625	1.02910628	SADDLE
1.94845627	315.94191317	1.78380441	SADDLE
180.60847507	134.41911431	3.01663943	MAXIMUM

Download:

MOID Plots

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