Asteroids

2021TE1 help

Last update: 2024-04-19 23:53 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Aten

Perihelion (q)

0.552

Aphelion (Q)

1.425

Eccentricity (e)

0.441

Inclination (i)

2.3

deg

Orbit period (P)

359.0

Earth MOID

0.00554

U parameter

7.1

Next Earth close approach

Date

2062-06-21

Nominal distance (from Earth center)

0.11083

16579862

Maximum Brightness

23.2

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.4

mag

Diameter

30 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2021-10-03

Observatory

Kitt Peak-Bok

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

0.988549

1-sigma variation

0.000138

Unit

Eccentricity (e)

Value

0.441271

1-sigma variation

0.000366

Unit

Inclination (i)

Value

2.2644

1-sigma variation

0.0025

Unit

Long. of Ascending Node (Ω)

Value

21.9222

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

124.9088

1-sigma variation

0.0050

Unit

Mean Anomaly (M)

Value

104.71008

1-sigma variation

0.15577

Unit

Perihelion distance

Value

0.552331

1-sigma variation

Unit

Aphelion distance

Value

1.424767

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.068998

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.366931

1-sigma variation

Unit

MOID

Value

0.005537

1-sigma variation

Unit

Orbit Period

Value

359.0010

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.91331E-8	5.05911E-8	3.48950E-7	-5.74718E-8	6.96301E-7	-2.15468E-5
e	5.05911E-8	1.33773E-7	9.22697E-7	-1.51969E-7	1.84123E-6	-5.69732E-5
i	3.48950E-7	9.22697E-7	6.36440E-6	-1.04804E-6	1.26999E-5	-3.92970E-4
Ω	-5.74718E-8	-1.51969E-7	-1.04804E-6	1.73316E-7	-2.09244E-6	6.47219E-5
ω	6.96301E-7	1.84123E-6	1.26999E-5	-2.09244E-6	2.53468E-5	-7.84137E-4
M	-2.15468E-5	-5.69732E-5	-3.92970E-4	6.47219E-5	-7.84137E-4	2.42650E-2

Date of computation: 2024-02-21 14:29 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

24.412

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

30 - 80*

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

909

Unit

Source

[1]

Normalized RMS of residuals

Value

0.68041

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2021-10-03.308985

Unit

Source

[2]

Last Observation

Value

2021-10-24.0264

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

75 (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 2021TE1 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
MARS	1952-12-02 12:18	> 1 mo	0.0291932	0.0032260	0.2893726
EARTH	1953-06-21 06:31	> 1 w	0.1136568	0.0369000	0.4628466
EARTH	1954-06-17 10:09	> 1 w	0.0390166	0.0373154	0.1230264
EARTH	1955-06-16 20:40	> 1 w	0.1351246	0.0378420	0.3776511
EARTH	1966-10-23 17:05	> 1 d	0.1356341	0.0353488	0.0334908
EARTH	1967-10-23 23:56	> 1 d	0.0158455	0.0048069	0.0764108
VENUS	1968-01-30 04:34	> 1 d	0.0350223	0.0337545	0.0235826
EARTH	1968-10-19 17:58	> 1 d	0.0936310	0.0052729	0.0762982
MARS	1977-03-24 19:47	> 1 d	0.0087064	0.0082633	0.0055018
VENUS	1997-05-12 00:27	1013.9	0.0469606	0.0324641	0.0055776
MARS	1998-01-24 23:15	532.3	0.0464851	0.0333380	0.0043971
MARS	1999-10-13 13:33	989.3	0.0427493	0.0232626	0.0066229
VENUS	2002-04-08 06:34	> 1 d	0.0453908	0.0262483	0.0158230
EARTH	2005-06-23 05:58	1052.7	0.1631508	0.1076198	0.0187913
EARTH	2006-06-19 07:51	987.1	0.0629394	0.0372345	0.0160890
EARTH	2007-06-16 14:22	485.2	0.0662082	0.0368154	0.0164366
EARTH	2008-06-17 16:15	> 1 d	0.1664794	0.1139575	0.0177048
VENUS	2014-03-24 08:01	1189.7	0.0461787	0.0342201	0.0103357
MARS	2020-08-13 22:19	387.1	0.0062597	0.0062582	0.0000090
EARTH	2020-10-23 16:38	89.1	0.1313681	0.1274325	0.0013119
EARTH	2021-10-23 23:12	< 1 s	0.0241618	0.0240931	0.0000229
EARTH	2022-10-21 03:14	67.2	0.0770105	0.0728385	0.0013909
EARTH	2023-10-17 10:00	141.3	0.1797629	0.1717082	0.0026850
MARS	2043-02-07 14:27	> 1 d	0.0386294	0.0307835	0.0026778
EARTH	2062-06-21 08:22	> 1 d	0.1108295	0.0387019	0.0286481
EARTH	2063-06-18 01:22	1356.9	0.0366311	0.0361717	0.0045933
MARS	2063-11-23 13:58	> 1 d	0.0372055	0.0071638	0.0181524
EARTH	2064-06-15 10:35	173.3	0.0974093	0.0363140	0.0289218
EARTH	2065-06-20 03:32	> 1 d	0.1887115	0.1014567	0.0295648
VENUS	2073-01-10 05:18	> 1 d	0.0383518	0.0259849	0.0326353
VENUS	2077-12-12 22:34	> 1 d	0.0392831	0.0259946	0.0310602
EARTH	2078-10-21 14:41	> 1 d	0.1729602	0.0802107	0.0310025
EARTH	2079-10-25 11:50	118.6	0.0858306	0.0077085	0.0322291
EARTH	2080-10-23 05:57	1338.3	0.0065572	0.0062502	0.0092031
EARTH	2081-10-20 03:16	> 1 d	0.1022659	0.0058451	0.1646242
VENUS	2082-11-15 10:43	> 1 mo	0.0474290	0.0256077	0.2890997
MARS	2086-04-30 15:26	> 1 mo	0.0175377	0.0027367	0.2535216
VENUS	2087-10-15 16:37	> 1 mo	0.0279492	0.0248916	0.4576748
VENUS	2092-09-15 07:06	> 1 mo	0.0248652	0.0248227	0.1519882
VENUS	2097-08-16 17:41	> 1 mo	0.0318586	0.0248407	5.8044101
MARS	2107-02-11 07:20	> 1 mo	0.0310368	0.0116583	3.9272468
VENUS	2119-06-05 17:55	> 1 mo	0.0423753	0.0340154	7.7798143
EARTH	2121-06-24 10:41	> 1 mo	0.1558131	0.0337290	8.9708475
EARTH	2122-06-20 22:16	> 1 mo	0.0631997	0.0338560	7.1064603
EARTH	2123-06-18 08:18	> 1 mo	0.0546893	0.0341812	5.6692312
VENUS	2124-05-05 15:25	> 1 mo	0.0343410	0.0342471	0.5413668
EARTH	2124-06-17 21:01	> 1 mo	0.1444039	0.0340805	5.6635301

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