Asteroids

2016TJ17 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.778

Aphelion (Q)

3.483

Eccentricity (e)

0.635

Inclination (i)

2.4

deg

Orbit period (P)

1136.1

Earth MOID

0.00113

U parameter

8.1

Next Earth close approach

Date

2044-10-15

Nominal distance (from Earth center)

0.16338

24441885

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2016-10-06

Observatory

Catalina Sky 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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.130792

1-sigma variation

0.003131

Unit

Eccentricity (e)

Value

0.634809

1-sigma variation

0.000624

Unit

Inclination (i)

Value

2.4246

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

13.5733

1-sigma variation

0.0014

Unit

Arg. of Perihelion (ω)

Value

293.8752

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

286.20341

1-sigma variation

2.25906

Unit

Perihelion distance

Value

0.778146

1-sigma variation

Unit

Aphelion distance

Value

3.483438

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.012720

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.712012

1-sigma variation

Unit

MOID

Value

0.001129

1-sigma variation

Unit

Orbit Period

Value

1136.0832

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.80250E-6	1.95265E-6	5.92897E-6	-4.51023E-6	-1.24239E-6	-7.07286E-3
e	1.95265E-6	3.88967E-7	1.18105E-6	-8.98433E-7	-2.47539E-7	-1.40891E-3
i	5.92897E-6	1.18105E-6	3.58727E-6	-2.72773E-6	-7.54210E-7	-4.27797E-3
Ω	-4.51023E-6	-8.98433E-7	-2.72773E-6	2.07538E-6	5.70760E-7	3.25430E-3
ω	-1.24239E-6	-2.47539E-7	-7.54210E-7	5.70760E-7	1.79096E-7	8.96428E-4
M	-7.07286E-3	-1.40891E-3	-4.27797E-3	3.25430E-3	8.96428E-4	5.10333E0

Date of computation: 2025-07-29 02:36 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

25.413

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

22 - 50*

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

3222

Unit

Source

[1]

Normalized RMS of residuals

Value

0.425268

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2016-10-06.27431

Unit

Source

[2]

Last Observation

Value

2016-10-25.237347

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

86 (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 2016TJ17 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	1959-05-17 19:11	> 1 w	0.0662144	0.0289461	0.2479463
EARTH	1962-10-15 06:31	> 1 w	0.1460676	0.0019101	0.3588245
EARTH	1978-06-19 07:09	> 1 mo	0.1756466	0.0297595	0.2346641
EARTH	2016-10-04 18:14	< 1 min	0.0031379	0.0031298	0.0000027
EARTH	2044-10-15 19:00	> 1 mo	0.1633839	0.0001071	0.8024510
VENUS	2082-01-13 18:44	> 1 mo	0.0485737	0.0485705	0.0018757
EARTH	2094-05-19 08:44	> 1 mo	0.0707337	0.0335698	4.0546317
EARTH	2097-09-06 02:21	> 1 mo	0.1814182	0.0153681	2.6214454
EARTH	2122-05-29 15:46	> 1 mo	0.0664838	0.0337396	2.1305600
EARTH	2125-09-21 12:33	> 1 mo	0.1334457	0.0068678	1.6266300

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
33.27082819	270.75055304	0.00112905	MINIMUM
325.68294195	138.25856760	0.03172318	MINIMUM
359.20218090	204.03851029	0.23917904	SADDLE
359.37888645	24.40487797	1.76294376	SADDLE
179.84545893	25.04462347	2.49930523	SADDLE
179.86989572	205.05277588	4.49758443	MAXIMUM

Download:

MOID Plots

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