Asteroids

2019UU1 help

Last update: 2024-05-10 23:56 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.791

Aphelion (Q)

1.267

Eccentricity (e)

0.231

Inclination (i)

1.1

deg

Orbit period (P)

381.3

Earth MOID

0.00020

U parameter

6.0

Next Earth close approach

Date

2039-03-29

Nominal distance (from Earth center)

0.11231

16802062

Maximum Brightness

28.7

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

30.3

mag

Diameter

2.3 - 5*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-10-19

Observatory

Mt. Lemmon Survey

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.029089

1-sigma variation

0.000027

Unit

Eccentricity (e)

Value

0.230924

1-sigma variation

0.000072

Unit

Inclination (i)

Value

1.1354

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

23.7200

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

265.1072

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

163.74299

1-sigma variation

0.06855

Unit

Perihelion distance

Value

0.791448

1-sigma variation

Unit

Aphelion distance

Value

1.266731

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.002536

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.047086

1-sigma variation

Unit

MOID

Value

0.000201

1-sigma variation

Unit

Orbit Period

Value

381.3098

1-sigma variation

Unit

U parameter

Value

6.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.12525E-10	1.90939E-9	8.99191E-9	1.11519E-9	-7.63935E-9	-1.82981E-6
e	1.90939E-9	5.11965E-9	2.41045E-8	2.91133E-9	-2.07164E-8	-4.90348E-6
i	8.99191E-9	2.41045E-8	1.13549E-7	1.39884E-8	-9.72238E-8	-2.30919E-5
Ω	1.11519E-9	2.91133E-9	1.39884E-8	4.44463E-9	-6.00351E-9	-2.86330E-6
ω	-7.63935E-9	-2.07164E-8	-9.72238E-8	-6.00351E-9	1.02699E-7	1.96209E-5
M	-1.82981E-6	-4.90348E-6	-2.30919E-5	-2.86330E-6	1.96209E-5	4.69907E-3

Date of computation: 2024-04-23 10:08 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

30.287

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

2.3 - 5*

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 ODIM	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

1661

Unit

Source

[1]

Normalized RMS of residuals

Value

0.791977

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-10-19.43522

Unit

Source

[2]

Last Observation

Value

2019-10-24.530658

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

26 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	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 2019UU1 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1953-04-27 19:51	> 1 mo	0.0904855	0.0011578	0.4279680
EARTH	1961-04-11 08:09	> 1 mo	0.0803484	0.0006502	0.7463705
EARTH	1962-10-11 03:08	> 1 mo	0.0853085	0.0059257	0.8653959
EARTH	1970-09-26 10:59	> 1 mo	0.0851840	0.0039063	0.9446552
EARTH	1978-07-25 09:29	> 1 mo	0.1824096	0.0091816	0.0931537
EARTH	1986-03-27 22:26	> 1 mo	0.1968855	0.0142645	0.3302665
EARTH	1986-06-04 00:43	> 1 mo	0.1578948	0.0167113	0.1670862
EARTH	1994-04-16 07:00	74.8	0.0015743	0.0008172	0.0005083
EARTH	1995-08-27 22:29	769.4	0.1718890	0.1706491	0.0004133
EARTH	2006-04-20 15:36	130.1	0.0622503	0.0595853	0.0008883
EARTH	2007-09-20 03:18	769.2	0.1327712	0.1303739	0.0007991
EARTH	2018-03-23 13:24	116.0	0.1923830	0.1919668	0.0001387
EARTH	2018-06-03 13:51	71.3	0.1665229	0.1662070	0.0001053
EARTH	2019-10-18 06:21	< 1 min	0.0015104	0.0015089	0.0000005
EARTH	2039-03-29 11:20	249.3	0.1123148	0.0982713	0.0046816
EARTH	2040-03-16 02:25	> 1 d	0.1611309	0.1501350	0.0036653
EARTH	2040-05-08 12:01	> 1 d	0.1562328	0.1471013	0.0030448
EARTH	2042-09-13 00:45	> 1 d	0.1544877	0.1461888	0.0027667
EARTH	2042-11-03 15:49	> 1 d	0.1586974	0.1486468	0.0033504
EARTH	2043-10-23 06:02	232.4	0.1152027	0.1030226	0.0040601
EARTH	2063-04-03 03:04	62.8	0.0056961	0.0037128	0.0009869
EARTH	2064-03-05 12:06	> 1 d	0.1848408	0.1798851	0.0016545
EARTH	2064-05-20 02:55	> 1 d	0.1787281	0.1753915	0.0011133
EARTH	2067-10-18 15:24	170.3	0.0845562	0.0381646	0.0154639
EARTH	2068-10-25 15:22	767.8	0.1188427	0.0642167	0.0182169
EARTH	2094-03-28 05:13	> 1 d	0.1434756	0.0040830	0.0679581
EARTH	2095-04-05 10:53	> 1 d	0.0583949	0.0037366	0.0678006
EARTH	2098-08-29 00:18	> 1 w	0.1882795	0.1429342	0.0151710
EARTH	2098-11-23 05:39	> 1 w	0.1968817	0.1362696	0.0202367
EARTH	2099-10-20 22:40	> 1 d	0.0157556	0.0019935	0.0263572
EARTH	2100-10-28 09:03	1285.7	0.1648527	0.0740377	0.0302740

Download as: