Asteroids

2012FC71 help

Last update: 2025-03-28 09:30 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.901

Aphelion (Q)

1.075

Eccentricity (e)

0.088

Inclination (i)

4.9

deg

Orbit period (P)

358.5

Earth MOID

0.05651

U parameter

5.3

Next Earth close approach

Date

2064-01-17

Nominal distance (from Earth center)

0.12964

19394547

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2012-03-31

Observatory

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.987717

1-sigma variation

0.000008

Unit

Eccentricity (e)

Value

0.088106

1-sigma variation

0.000160

Unit

Inclination (i)

Value

4.9405

1-sigma variation

0.0107

Unit

Long. of Ascending Node (Ω)

Value

38.1203

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

348.4020

1-sigma variation

0.0211

Unit

Mean Anomaly (M)

Value

282.27400

1-sigma variation

0.09250

Unit

Perihelion distance

Value

0.900693

1-sigma variation

Unit

Aphelion distance

Value

1.074740

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.090452

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.065751

1-sigma variation

Unit

MOID

Value

0.056514

1-sigma variation

Unit

Orbit Period

Value

358.5478

1-sigma variation

Unit

U parameter

Value

5.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.13679E-11	-1.24953E-9	-8.37085E-8	9.31441E-9	1.64759E-7	-7.24365E-7
e	-1.24953E-9	2.55147E-8	1.70952E-6	-1.90288E-7	-3.36230E-6	1.47600E-5
i	-8.37085E-8	1.70952E-6	1.14548E-4	-1.27641E-5	-2.25403E-4	9.89019E-4
Ω	9.31441E-9	-1.90288E-7	-1.27641E-5	1.45177E-6	2.53344E-5	-1.10405E-4
ω	1.64759E-7	-3.36230E-6	-2.25403E-4	2.53344E-5	4.45885E-4	-1.94965E-3
M	-7.24365E-7	1.47600E-5	9.89019E-4	-1.10405E-4	-1.94965E-3	8.55692E-3

Date of computation: 2025-02-19 13:28 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

25.179

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

24 - 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

[-]

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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

4724

Unit

Source

[1]

Normalized RMS of residuals

Value

0.641265

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2012-03-31.37492

Unit

Source

[2]

Last Observation

Value

2012-04-21.36231

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (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

[-]

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 2012FC71 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	1955-01-20 12:20	287.2	0.1401154	0.1282086	0.0040584
EARTH	1955-12-31 05:52	> 1 d	0.0797008	0.0774578	0.0010694
EARTH	1956-11-19 10:26	> 1 d	0.0811982	0.0805408	0.0004157
EARTH	1957-03-27 00:04	> 1 d	0.0881109	0.0862992	0.0007247
EARTH	1957-10-15 11:39	> 1 d	0.0980924	0.0970486	0.0004678
EARTH	1958-05-01 05:09	> 1 d	0.0687030	0.0661429	0.0010115
EARTH	1958-09-05 18:39	> 1 d	0.1092067	0.1089375	0.0001740
EARTH	1959-06-01 16:14	1433.1	0.0585983	0.0577649	0.0005564
EARTH	1960-06-13 18:44	126.1	0.1176854	0.1084756	0.0031397
EARTH	2009-01-21 15:59	13.2	0.1692352	0.1689169	0.0001063
EARTH	2010-01-09 14:27	41.9	0.0903854	0.0900257	0.0001202
EARTH	2010-12-01 01:21	110.5	0.0778794	0.0774075	0.0001574
EARTH	2011-03-11 19:48	70.5	0.0912533	0.0906863	0.0001890
EARTH	2011-10-26 02:00	73.7	0.0930605	0.0925113	0.0001831
EARTH	2012-04-18 21:03	4.8	0.0761200	0.0756695	0.0001502
EARTH	2012-09-18 18:28	16.0	0.1074308	0.1068055	0.0002084
EARTH	2013-05-21 20:51	37.5	0.0574217	0.0570655	0.0001188
EARTH	2014-06-11 14:18	22.5	0.0903393	0.0900161	0.0001079
EARTH	2015-06-13 22:39	13.2	0.1799774	0.1795331	0.0001482
EARTH	2064-01-17 16:31	287.5	0.1296445	0.1205406	0.0031317
EARTH	2064-12-24 14:11	> 1 d	0.0776159	0.0773095	0.0003254
EARTH	2065-11-14 02:49	> 1 d	0.0833969	0.0815924	0.0007733
EARTH	2066-03-27 22:00	> 1 d	0.0870082	0.0862268	0.0003684
EARTH	2066-10-10 09:59	> 1 d	0.1000032	0.0979257	0.0008065
EARTH	2067-05-01 16:29	> 1 d	0.0679143	0.0661405	0.0007559
EARTH	2067-08-30 20:37	> 1 d	0.1089371	0.1087634	0.0001352
EARTH	2068-05-31 16:36	1356.0	0.0602374	0.0581678	0.0010065
EARTH	2069-06-12 10:24	68.4	0.1221805	0.1107467	0.0038826
EARTH	2118-01-21 02:32	708.3	0.1707258	0.1299599	0.0143639
EARTH	2119-01-10 00:07	> 1 d	0.0909015	0.0805099	0.0073860
EARTH	2119-12-01 16:28	> 1 w	0.0781107	0.0774881	0.0015864
EARTH	2120-03-07 14:03	> 1 w	0.0909774	0.0908740	0.0004159
EARTH	2120-10-25 09:52	> 1 w	0.0930762	0.0901259	0.0027211
EARTH	2121-04-16 01:32	> 1 w	0.0776281	0.0742747	0.0028410
EARTH	2121-09-19 11:16	> 1 w	0.1071102	0.1058172	0.0015035
EARTH	2122-05-19 09:39	> 1 d	0.0586085	0.0582337	0.0012972
EARTH	2123-06-10 16:47	1406.0	0.0863595	0.0639845	0.0105191
EARTH	2124-06-12 11:42	123.0	0.1742386	0.1308488	0.0148846

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
219.21170276	140.10776456	0.05631406	MINIMUM
51.51299247	340.48764522	0.07620201	MINIMUM
126.47360995	54.43007644	0.09129648	SADDLE
318.32387480	240.53570794	0.11008730	SADDLE
346.70575349	91.31987948	1.90240527	SADDLE
170.53222489	275.16125166	2.07118418	MAXIMUM

Download:

MOID Plots

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