Asteroids

2020KN2

Last update: 2021-06-20 23:50 UTC

Orbital Properties

Epoch

59400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.976

Aphelion (Q)

2.585

Eccentricity (e)

0.452

Inclination (i)

0.5

deg

Orbit period (P)

867.8

days

Earth MOID

0.00109

Next Earth close approach

Date

2039-06-17

Nominal distance (from Earth center)

0.0243

3635384

Maximum Brightness

26.9

Orbit Visualiser

Click the button to start Orbit Visualiser

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.3

Diameter

19*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2020-05-20

Observatory

Pan-STARRS 2, Haleakala

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period

Value

1-sigma variation

Unit

Epoch

Value

59400.0

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.78

1-sigma variation

0.0012825

Unit

Eccentricity (e)

Value

0.451796399789721

1-sigma variation

4.09144E-4

Unit

Inclination (i)

Value

4.969E-1

1-sigma variation

3.124E-4

Unit

Ascending Node (Ω)

Value

83.05

1-sigma variation

3.671E-4

Unit

Arg. of Perihelion (ω)

Value

201.11

1-sigma variation

6.305E-4

Unit

Mean Anomaly (M)

Value

154.03

1-sigma variation

0.164844

Unit

Perihelion

Value

9.761E-1

1-sigma variation

Unit

Aphelion

Value

2.59

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.46

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-1.785E-2

1-sigma variation

Unit

MOID

Value

1.085E-3

1-sigma variation

Unit

Orbit Period

Value

867.84

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.64482E-6	5.24729E-7	4.00591E-7	4.06951E-7	7.69509E-7	-2.11413E-4
e	5.24729E-7	1.67399E-7	1.27796E-7	1.29823E-7	2.45494E-7	-6.74449E-5
i	4.00591E-7	1.27796E-7	9.75906E-8	9.81943E-8	1.88372E-7	-5.14891E-5
Ω	4.06951E-7	1.29823E-7	9.81943E-8	1.34742E-7	1.55488E-7	-5.23063E-5
ω	7.69509E-7	2.45494E-7	1.88372E-7	1.55488E-7	3.97544E-7	-9.89081E-5
M	-2.11413E-4	-6.74449E-5	-5.14891E-5	-5.23063E-5	-9.89081E-5	2.71736E-2

Date of computation: 2021-06-17 09:25 UTC

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)

Taxononomy

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

26.339

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

19*

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

[-]

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

**Estimated value

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

days

Source

[1]

Unobserved

Value

382

Unit

days

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.642981

Unit

arcseconds

Source

[1]

First Observation

Value

2020-05-14.26832

Unit

Source

[2]

Last Observation

Value

2020-06-03.38263

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

77 (1)

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 2020KN2 from 1950 to 2150

Body	Date	MJD	Nominal distance (au)	Min possible distance (au)	Stretching (au)	Width (au)	Close approach probability
MARS	1955-10-24.79190	35404.8	0.0375538	0.0285103	2.938E-1	1.721E-7	4.43E-2
EARTH	1958-08-28.45552	36443.5	0.1910613	0.0067434	2.039E0	1.055E-7	3.27E-2
EARTH	1970-05-22.93336	40728.9	0.0736063	0.0020026	9.763E0	2.794E-8	6.83E-3
MARS	1985-01-07.31066	46072.3	0.0400275	0.0148149	1.431E0	1.489E-7	1.12E-2
EARTH	1989-07-27.71475	47734.7	0.0230593	0.0067681	9.029E-1	8.359E-8	7.38E-2
EARTH	2008-08-07.53174	54685.5	0.0134151	0.0066633	6.181E-2	9.393E-8	1.00E0
EARTH	2020-06-02.10951	59002.1	0.0148630	0.0148286	1.143E-5	1.349E-8	1.00E0
MARS	2020-10-01.61003	59123.6	0.0154477	0.0154257	6.673E-5	2.374E-7	1.00E0
EARTH	2039-06-17.59210	65956.6	0.0243010	0.0010066	5.951E-2	3.103E-8	9.92E-1
EARTH	2058-08-24.10555	72964.1	0.1302204	0.0066492	7.652E-1	9.763E-8	8.71E-2
EARTH	2070-05-17.57227	77248.6	0.1526486	0.0009039	9.015E-1	1.001E-8	7.39E-2
EARTH	2089-07-30.81225	84262.8	0.0142360	0.0066260	3.082E-1	8.615E-8	2.16E-1
EARTH	2108-07-03.36620	91174.4	0.0383864	0.0004500	9.138E-1	6.633E-8	7.28E-2
EARTH	2127-06-17.01328	98097.0	0.0191565	0.0003596	2.219E0	3.934E-8	3.00E-2
EARTH	2146-08-21.63903	105102.6	0.0961929	0.0064653	4.015E1	9.079E-8	1.66E-3

Download as:

2020KN2

Date	MJD	σ	Distance ± Width (RE)	Stretching (RE/σ)	IP	Exp. Energy (MT)	PS
2063-06-08.372	74713.372	1.284	1.42 ± 0.001	9.18E3	4.13E-5	7.43E-6	-5.09
2068-06-07.270	76539.270	1.277	0.09 ± 0.000	5.80E6	1.05E-7	1.90E-8	-7.73
2068-06-07.368	76539.369	-0.430	1.57 ± 0.003	2.97E6	1.83E-7	3.28E-8	-7.49
2071-06-08.334	77635.335	1.282	0.63 ± 0.022	2.88E7	2.02E-8	3.63E-9	-8.48
2076-06-07.677	79461.678	1.286	1.27 ± 0.002	7.27E7	6.76E-9	1.21E-9	-8.99
2082-06-08.134	81653.134	-0.496	1.58 ± 0.219	9.19E7	5.03E-9	8.96E-10	-9.17
2083-06-08.203	82018.204	-0.500	1.55 ± 0.089	4.47E7	1.22E-8	2.18E-9	-8.79
2086-06-08.392	83114.393	1.288	1.64 ± 0.000	2.30E7	2.07E-8	3.72E-9	-8.58
2087-06-07.842	83478.843	1.341	0.61 ± 0.001	2.40E6	2.19E-7	3.94E-8	-7.56
2091-06-08.378	84940.379	0.991	0.67 ± 0.000	2.10E7	3.77E-8	6.76E-9	-8.35
2098-06-09.310	87498.311	-0.616	1.24 ± 0.001	3.34E6	2.63E-7	4.66E-8	-7.55
2099-06-08.721	87862.722	0.624	1.38 ± 0.002	4.17E6	2.03E-7	3.63E-8	-7.67
2101-06-09.336	88593.336	2.876	0.56 ± 0.001	4.03E5	5.31E-8	9.57E-9	-8.26
2102-06-09.396	88958.397	0.617	1.63 ± 0.000	4.40E8	9.32E-10	1.67E-10	-10.02
2103-06-10.049	89324.049	1.292	0.51 ± 0.000	6.71E6	8.60E-8	1.54E-8	-8.06
2105-06-08.461	90053.461	-0.463	1.01 ± 0.000	6.48E6	1.87E-7	3.37E-8	-7.73
2105-06-09.658	90054.658	-0.498	1.45 ± 0.089	5.79E7	1.18E-8	2.09E-9	-8.94
2106-06-08.871	90418.872	4.519	1.18 ± 0.001	4.03E5	1.22E-10	2.22E-11	-10.92
2110-06-08.641	91879.642	-0.491	0.90 ± 0.000	1.56E8	6.70E-9	1.20E-9	-9.20
2110-06-09.195	91880.196	0.749	1.29 ± 0.000	1.11E7	6.37E-8	1.14E-8	-8.23
2111-06-08.980	92244.981	-0.500	1.58 ± 0.000	4.94E7	1.03E-8	1.84E-9	-9.02
2111-06-09.830	92245.830	0.627	0.69 ± 0.001	3.25E6	3.22E-7	5.77E-8	-7.53
2113-06-09.186	92976.187	2.727	0.49 ± 0.001	2.71E6	1.19E-8	2.15E-9	-8.96
2114-06-08.356	93340.357	-0.511	0.95 ± 0.011	1.17E7	8.67E-8	1.55E-8	-8.11
2115-06-08.476	93705.477	-0.529	0.44 ± 0.001	1.46E7	7.98E-8	1.43E-8	-8.15
2115-06-09.340	93706.340	0.748	0.53 ± 0.011	2.64E7	3.80E-8	6.79E-9	-8.47
2116-06-08.454	94071.455	4.422	1.42 ± 0.002	2.90E4	1.51E-9	2.77E-10	-9.87
2117-06-09.444	94437.445	-3.598	0.82 ± 0.001	2.72E5	7.04E-9	1.23E-9	-9.22
2119-06-09.320	95167.320	-4.016	1.09 ± 0.001	1.41E6	2.44E-10	4.28E-11	-10.69


Based on 86 optical observations (of which 6 are rejected as outliers) from 2020/05/14.268 to 2020/06/03.383.
Coordinates are given on the Target Plane
Unit is one Earth radius, but impact cross section has radius between 1.74 and 1.74 Earth radii
Coordinates for LOV = EQU scaled= 1 second= F
AstOD software version= 2.0, Date of computation=20200819 150341.108 UTC

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