Asteroids

2021TO14

Last update: 2021-12-07 00:03 UTC

Orbital Properties

Epoch

59600.0

MJD

Orbit type

Apollo

Perihelion (q)

0.664

Aphelion (Q)

2.273

Eccentricity (e)

0.548

Inclination (i)

1.5

deg

Orbit period (P)

650.2

days

Earth MOID

0.01535

Next Earth close approach

Date

2037-10-29

Nominal distance (from Earth center)

0.12928

19339704

Maximum Brightness

124

Orbit Visualiser

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Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

Diameter

40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-10-14

Observatory

Pan-STARRS 1, 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

59600.0

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.47

1-sigma variation

0.00104634

Unit

Eccentricity (e)

Value

0.547739101055452

1-sigma variation

4.3714E-4

Unit

Inclination (i)

Value

1.46

1-sigma variation

8.340E-4

Unit

Ascending Node (Ω)

Value

242.98

1-sigma variation

1.080E-2

Unit

Arg. of Perihelion (ω)

Value

229.31

1-sigma variation

1.093E-2

Unit

Mean Anomaly (M)

Value

23.52

1-sigma variation

1.562E-2

Unit

Perihelion

Value

6.643E-1

1-sigma variation

Unit

Aphelion

Value

2.27

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

5.895E-1

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-2.295E-1

1-sigma variation

Unit

MOID

Value

1.535E-2

1-sigma variation

Unit

Orbit Period

Value

650.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.09483E-6	4.57397E-7	8.69159E-7	1.09664E-5	-1.10863E-5	-1.63436E-5
e	4.57397E-7	1.91092E-7	3.63170E-7	4.57968E-6	-4.62965E-6	-6.82801E-6
i	8.69159E-7	3.63170E-7	6.95568E-7	8.51315E-6	-8.59978E-6	-1.29747E-5
Ω	1.09664E-5	4.57968E-6	8.51315E-6	1.16535E-4	-1.18027E-4	-1.63709E-4
ω	-1.10863E-5	-4.62965E-6	-8.59978E-6	-1.18027E-4	1.19558E-4	1.65500E-4
M	-1.63436E-5	-6.82801E-6	-1.29747E-5	-1.63709E-4	1.65500E-4	2.43977E-4

Date of computation: 2021-11-10 06:02 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)

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

25.023

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

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

[-]

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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

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

0.61323

Unit

arcseconds

Source

[1]

First Observation

Value

2021-10-14.304394

Unit

Source

[2]

Last Observation

Value

2021-10-17.882862

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

78 (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

[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 2021TO14 from 1950 to 2121

Body	Date	MJD	Nominal distance (au)	Min possible distance (au)	Stretching (au)	Width (au)	Close approach probability
EARTH	1955-03-30.39345	35196.4	0.1123860	0.0181359	3.715E2	6.362E-7	1.79E-4
EARTH	1956-10-14.24102	35760.2	0.0707622	0.0156961	3.430E2	3.576E-7	1.94E-4
VENUS	1965-12-21.27048	39115.3	0.0256680	0.0000424	8.286E1	6.951E-7	2.01E-4
EARTH	1975-03-29.22578	42500.2	0.1253546	0.0179022	8.384E1	6.339E-7	7.92E-4
EARTH	1976-10-11.72583	43062.7	0.1179707	0.0155556	8.497E1	3.371E-7	7.82E-4
VENUS	2002-04-11.43824	52375.4	0.0030577	0.0003045	9.813E-2	7.027E-7	1.70E-1
EARTH	2004-03-31.72223	53095.7	0.1090250	0.0176872	9.203E-2	7.664E-8	6.66E-1
EARTH	2020-04-19.05774	58958.1	0.1787572	0.1367053	1.243E-2	4.968E-8	7.86E-1
EARTH	2021-10-18.89103	59505.9	0.0162926	0.0162533	1.310E-5	3.286E-8	1.00E0
EARTH	2037-10-29.83462	65360.8	0.1292779	0.0152882	9.730E-2	2.100E-7	6.22E-1
MARS	2059-08-22.17596	73327.2	0.0332338	0.0060223	5.579E-2	1.814E-6	2.97E-1
EARTH	2061-04-01.80657	73915.8	0.1069180	0.0173148	5.739E-2	6.374E-8	7.72E-1
EARTH	2077-04-11.72394	79769.7	0.0349556	0.0171763	9.953E-2	6.887E-8	6.67E-1
EARTH	2078-10-11.20280	80317.2	0.1565457	0.0149484	8.720E-2	1.664E-7	5.83E-1
MARS	2093-06-27.91354	85690.9	0.0309261	0.0069611	3.134E-2	2.012E-6	5.25E-1
EARTH	2094-10-26.00723	86176.0	0.0822157	0.0147895	5.805E-2	1.932E-7	8.41E-1
EARTH	2118-04-09.62534	94741.6	0.0329411	0.0168015	2.995E-1	8.478E-8	2.22E-1

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