Asteroids

2017FZ2 help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.742

Aphelion (Q)

1.273

Eccentricity (e)

0.264

Inclination (i)

1.8

deg

Orbit period (P)

369.4

Earth MOID

0.00161

U parameter

1.7

Next Earth close approach

Date

2030-09-21

Nominal distance (from Earth center)

0.17408

26042297

Maximum Brightness

27.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.4

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-03-19

Observatory

University of Arizona Mt. Lemmon 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.007569

1-sigma variation

4.019E-8

Unit

Eccentricity (e)

Value

0.263793

1-sigma variation

0.000001

Unit

Inclination (i)

Value

1.8141

1-sigma variation

8.476E-6

Unit

Long. of Ascending Node (Ω)

Value

185.6585

1-sigma variation

1.090E-5

Unit

Arg. of Perihelion (ω)

Value

100.1144

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

326.28253

1-sigma variation

0.00015

Unit

Perihelion distance

Value

0.741779

1-sigma variation

Unit

Aphelion distance

Value

1.273358

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.014765

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.106159

1-sigma variation

Unit

MOID

Value

0.001614

1-sigma variation

Unit

Orbit Period

Value

369.4114

1-sigma variation

Unit

U parameter

Value

1.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.61490E-15	5.26177E-14	2.45312E-13	1.96333E-13	3.24646E-12	-6.04339E-12
e	5.26177E-14	1.78749E-12	8.23156E-12	6.94404E-12	1.10547E-10	-1.92433E-10
i	2.45312E-13	8.23156E-12	7.18457E-11	-2.24942E-11	5.63179E-10	-9.02063E-10
Ω	1.96333E-13	6.94404E-12	-2.24942E-11	1.18795E-10	3.38873E-10	-7.03379E-10
ω	3.24646E-12	1.10547E-10	5.63179E-10	3.38873E-10	6.92997E-9	-1.18548E-8
M	-6.04339E-12	-1.92433E-10	-9.02063E-10	-7.03379E-10	-1.18548E-8	2.28905E-8

Date of computation: 2026-06-04 23:11 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

26.369

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

14 - 30*

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

Radar R

Unit

Source

[3]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude
[3]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

360

Unit

Source

[1]

Unobserved

Value

3008

Unit

Source

[1]

Normalized RMS of residuals

Value

0.474004

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-03-19.34252

Unit

Source

[2]

Last Observation

Value

2018-03-14.04373

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

161 (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

2017-03-27

Unit

Source

[3]

Last Observation

Value

2017-03-27

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

1 (0)

Unit

Source

[1]

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
[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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2017FZ2 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1950-03-08 01:31	2.6	0.1786228	0.1786103	0.0000042
EARTH	1950-05-04 16:46	4.1	0.1908866	0.1908734	0.0000044
EARTH	1951-03-18 06:55	1.8	0.1486647	0.1486516	0.0000044
EARTH	1952-03-26 12:52	< 1 min	0.1140309	0.1140185	0.0000041
EARTH	1953-03-29 16:15	< 1 min	0.0789676	0.0789577	0.0000033
EARTH	1954-03-30 00:49	< 1 s	0.0496289	0.0496223	0.0000022
EARTH	1955-03-29 21:56	< 1 min	0.0270074	0.0270053	0.0000007
EARTH	1956-03-28 21:53	< 1 min	0.0163900	0.0163864	0.0000012
EARTH	1957-03-29 08:35	< 1 min	0.0267238	0.0267192	0.0000015
EARTH	1958-03-30 01:51	< 1 min	0.0498746	0.0498712	0.0000011
EARTH	1959-03-30 10:19	< 1 s	0.0795172	0.0795154	0.0000006
EARTH	1960-03-27 15:00	< 1 min	0.1128450	0.1128446	0.0000001
EARTH	1961-03-19 14:41	< 1 min	0.1464791	0.1464774	0.0000006
EARTH	1962-03-09 13:19	< 1 min	0.1771863	0.1771833	0.0000010
EARTH	1962-05-03 00:06	< 1 min	0.1856121	0.1856088	0.0000011
EARTH	1980-09-16 12:15	3.4	0.1955732	0.1955689	0.0000014
EARTH	1980-11-19 17:38	1.9	0.1892535	0.1892486	0.0000016
EARTH	1981-09-30 16:35	2.8	0.1712266	0.1712196	0.0000023
EARTH	1981-11-11 10:14	1.7	0.1645477	0.1645409	0.0000023
EARTH	1982-11-01 17:00	< 1 min	0.1361424	0.1361337	0.0000029
EARTH	1983-10-27 09:48	< 1 min	0.1062269	0.1062175	0.0000031
EARTH	1984-10-25 20:20	< 1 min	0.0760156	0.0760067	0.0000030
EARTH	1985-10-26 07:54	< 1 min	0.0495767	0.0495688	0.0000026
EARTH	1986-10-27 02:31	< 1 min	0.0301912	0.0301856	0.0000019
EARTH	1987-10-27 14:14	< 1 min	0.0218020	0.0217996	0.0000008
EARTH	1988-10-26 17:47	< 1 min	0.0232608	0.0232606	0.0000000
EARTH	1989-10-26 16:20	< 1 min	0.0348826	0.0348800	0.0000008
EARTH	1990-10-26 13:01	< 1 min	0.0553265	0.0553219	0.0000015
EARTH	1991-10-26 18:05	< 1 min	0.0816266	0.0816205	0.0000020
EARTH	1992-10-27 20:35	< 1 min	0.1098931	0.1098859	0.0000024
EARTH	1993-11-03 17:26	< 1 min	0.1392772	0.1392696	0.0000025
EARTH	1994-09-28 23:34	1.5	0.1762155	0.1762075	0.0000027
EARTH	1994-11-13 06:34	1.3	0.1665386	0.1665313	0.0000024
EARTH	1995-11-21 20:59	1.5	0.1904425	0.1904356	0.0000023
VENUS	1999-07-06 20:50	< 1 min	0.0492524	0.0492501	0.0000007
EARTH	2011-02-25 12:24	1.2	0.1953433	0.1953424	0.0000003
EARTH	2012-03-06 06:14	1.1	0.1673091	0.1673070	0.0000007
EARTH	2012-04-21 19:17	1.5	0.1788565	0.1788542	0.0000007
EARTH	2013-03-17 23:31	< 1 min	0.1311404	0.1311371	0.0000011
EARTH	2014-03-24 12:44	< 1 min	0.0908292	0.0908253	0.0000013
EARTH	2015-03-25 08:55	< 1 s	0.0522832	0.0522793	0.0000013
EARTH	2016-03-24 01:44	< 1 min	0.0194512	0.0194477	0.0000012
EARTH	2017-03-23 20:41	< 1 s	0.0043744	0.0043744	0.0000000
EARTH	2018-03-25 13:54	< 1 s	0.0708388	0.0708372	0.0000005
EARTH	2019-03-18 00:46	< 1 min	0.1407456	0.1407428	0.0000009
EARTH	2020-02-27 05:25	< 1 min	0.1962750	0.1962716	0.0000012
EARTH	2030-09-21 14:44	1.1	0.1740820	0.1740792	0.0000009
EARTH	2030-11-06 10:17	< 1 min	0.1684600	0.1684572	0.0000009
EARTH	2031-10-21 01:25	< 1 min	0.1073689	0.1073653	0.0000012
EARTH	2032-10-20 02:30	< 1 min	0.0422488	0.0422449	0.0000013
EARTH	2033-10-22 05:17	< 1 min	0.0223212	0.0223176	0.0000012
EARTH	2034-10-25 10:53	< 1 min	0.0944892	0.0944872	0.0000007
EARTH	2035-10-28 13:08	< 1 min	0.1660492	0.1660479	0.0000004
VENUS	2065-12-21 21:54	5.1	0.0391835	0.0391770	0.0000022
EARTH	2098-03-17 16:28	2.0	0.1862253	0.1860982	0.0000424
EARTH	2099-03-21 06:28	1.8	0.1036487	0.1035405	0.0000361
EARTH	2100-03-24 10:44	1.3	0.0243454	0.0242613	0.0000280
EARTH	2101-03-26 10:28	< 1 min	0.0355961	0.0355923	0.0000013
EARTH	2102-03-26 07:11	1.9	0.1051238	0.1050341	0.0000299
EARTH	2103-03-09 09:21	27.6	0.1700563	0.1699222	0.0000447
EARTH	2103-04-26 07:31	44.2	0.1770696	0.1769377	0.0000439
EARTH	2113-09-29 19:10	184.0	0.1648073	0.1640241	0.0002611
EARTH	2113-11-04 15:21	139.6	0.1597672	0.1590290	0.0002461
EARTH	2114-10-21 19:53	5.5	0.0904694	0.0895559	0.0003045
EARTH	2115-10-23 01:54	11.9	0.0274201	0.0266785	0.0002483
EARTH	2116-10-24 03:40	9.8	0.0340014	0.0334670	0.0001784
EARTH	2117-10-26 22:11	2.0	0.0988633	0.0987251	0.0000461
EARTH	2118-10-29 23:38	5.8	0.1678640	0.1675578	0.0001020

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
272.11586807	80.24849840	0.00175287	MINIMUM
87.13211485	287.91654052	0.01214336	MINIMUM
359.53061444	183.95236810	0.27767792	SADDLE
179.67765240	4.17191950	0.29182122	SADDLE
359.63723086	4.09211783	1.72515169	SADDLE
179.80031424	184.26236667	2.29116982	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out