Asteroids

478784 2012UV136 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.868

Aphelion (Q)

1.150

Eccentricity (e)

0.140

Inclination (i)

2.1

deg

Orbit period (P)

370.1

Earth MOID

0.01182

U parameter

0.1

A₂

-91.2

10^-15au/days²

Next Earth close approach

Date

2090-11-04

Nominal distance (from Earth center)

0.13343

19961161

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2012-10-22

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.008740

1-sigma variation

4.426E-9

Unit

Eccentricity (e)

Value

0.139650

1-sigma variation

4.975E-8

Unit

Inclination (i)

Value

2.1018

1-sigma variation

1.517E-6

Unit

Long. of Ascending Node (Ω)

Value

207.8110

1-sigma variation

2.021E-5

Unit

Arg. of Perihelion (ω)

Value

290.3268

1-sigma variation

2.138E-5

Unit

Mean Anomaly (M)

Value

245.30284

1-sigma variation

0.00002

Unit

Perihelion distance

Value

0.867869

1-sigma variation

Unit

Aphelion distance

Value

1.149611

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.062096

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.043718

1-sigma variation

Unit

MOID

Value

0.011824

1-sigma variation

Unit

Orbit Period

Value

370.0559

1-sigma variation

Unit

U parameter

Value

0.1

1-sigma variation

Unit

A₂

Value

-91.20990

1-sigma variation

16.39070

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	1.95924E-17	3.09234E-18	1.94705E-15	2.13790E-14	-2.93902E-14	-3.83514E-14	7.19588E-8
e	3.09234E-18	2.47464E-15	3.70818E-14	4.41016E-13	-2.80421E-13	-6.32224E-13	-3.07383E-8
i	1.94705E-15	3.70818E-14	2.30186E-12	2.33908E-11	-2.24774E-11	-1.21720E-11	5.92277E-6
Ω	2.13790E-14	4.41016E-13	2.33908E-11	4.08626E-10	-4.16413E-10	-1.06533E-10	7.62955E-5
ω	-2.93902E-14	-2.80421E-13	-2.24774E-11	-4.16413E-10	4.56936E-10	5.50259E-11	-1.08493E-4
M	-3.83514E-14	-6.32224E-13	-1.21720E-11	-1.06533E-10	5.50259E-11	2.76456E-10	-1.33455E-4
A₂	7.19588E-8	-3.07383E-8	5.92277E-6	7.62955E-5	-1.08493E-4	-1.33455E-4	2.68656E2

Date of computation: 2025-09-10 00:30 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

25.581

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

20 - 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

3146

Unit

Source

[1]

Unobserved

Value

1576

Unit

Source

[1]

Normalized RMS of residuals

Value

0.601406

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2012-10-22.43037

Unit

Source

[2]

Last Observation

Value

2021-06-03.251595

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

152 (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 478784 2012UV136 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	1951-11-06 21:34	< 1 min	0.1395771	0.1395619	0.0000051
EARTH	1952-11-10 02:07	< 1 min	0.0436524	0.0436040	0.0000161
EARTH	1953-11-11 00:02	2.2	0.0370174	0.0369610	0.0000188
EARTH	1954-10-01 20:34	20.3	0.1082212	0.1082002	0.0000070
EARTH	1955-01-07 11:04	21.6	0.1066778	0.1066618	0.0000053
EARTH	1955-09-01 01:23	13.6	0.1379413	0.1379380	0.0000011
EARTH	1956-02-13 06:54	10.6	0.1214519	0.1214505	0.0000005
EARTH	1956-08-03 16:12	7.4	0.1412653	0.1412619	0.0000011
EARTH	1957-03-19 22:30	1.6	0.1056870	0.1056869	0.0000000
EARTH	1957-07-02 19:17	< 1 min	0.1182692	0.1182674	0.0000006
EARTH	1958-05-10 01:05	1.4	0.0468309	0.0468170	0.0000046
EARTH	1959-05-18 11:47	< 1 min	0.0407830	0.0407562	0.0000089
EARTH	1960-05-23 02:19	< 1 min	0.1396781	0.1396484	0.0000099
EARTH	2011-11-07 07:17	< 1 s	0.1107210	0.1107209	0.0000001
EARTH	2012-11-10 07:49	< 1 s	0.0148863	0.0148863	0.0000000
EARTH	2013-11-08 12:13	< 1 s	0.0477070	0.0477069	0.0000001
EARTH	2014-10-06 16:21	< 1 min	0.0997841	0.0997839	0.0000001
EARTH	2014-12-30 06:15	< 1 min	0.1015783	0.1015782	0.0000001
EARTH	2015-09-11 18:45	< 1 min	0.1276502	0.1276501	0.0000001
EARTH	2016-01-28 08:28	< 1 min	0.1207227	0.1207226	0.0000001
EARTH	2016-08-20 16:42	< 1 min	0.1392523	0.1392522	0.0000001
EARTH	2017-02-21 09:33	< 1 min	0.1224334	0.1224333	0.0000000
EARTH	2017-07-30 17:20	< 1 min	0.1367150	0.1367148	0.0000001
EARTH	2018-03-19 12:30	< 1 min	0.1086021	0.1086020	0.0000000
EARTH	2018-07-07 05:45	< 1 min	0.1192551	0.1192550	0.0000000
EARTH	2019-04-23 19:11	< 1 min	0.0738162	0.0738161	0.0000000
EARTH	2020-05-15 13:55	< 1 s	0.0217319	0.0217319	0.0000000
EARTH	2021-05-18 20:55	< 1 s	0.0404461	0.0404459	0.0000001
EARTH	2022-05-22 16:59	< 1 s	0.1067357	0.1067354	0.0000001
EARTH	2023-05-26 15:48	< 1 s	0.1813247	0.1813243	0.0000001
EARTH	2090-11-04 10:34	< 1 min	0.1334321	0.1333848	0.0000158
EARTH	2091-11-07 18:37	< 1 min	0.0607428	0.0606989	0.0000146
EARTH	2092-11-08 17:10	< 1 min	0.0119274	0.0119257	0.0000006
EARTH	2093-11-06 05:39	17.1	0.0519647	0.0517774	0.0000625
EARTH	2094-10-05 08:00	128.9	0.0986340	0.0984580	0.0000587
EARTH	2094-12-27 00:22	172.1	0.1003383	0.1001976	0.0000469
EARTH	2095-09-12 07:00	165.1	0.1250874	0.1249642	0.0000411
EARTH	2096-01-22 19:16	210.1	0.1196417	0.1195763	0.0000218
EARTH	2096-08-22 18:36	193.0	0.1374548	0.1373989	0.0000186
EARTH	2097-02-13 15:02	247.7	0.1242037	0.1241820	0.0000072
EARTH	2097-08-04 05:33	227.6	0.1379982	0.1379659	0.0000108
EARTH	2098-03-08 08:48	292.4	0.1162789	0.1161357	0.0000478
EARTH	2098-07-15 03:55	276.8	0.1268181	0.1266533	0.0000549
EARTH	2099-04-03 22:41	332.3	0.0939287	0.0935803	0.0001162
EARTH	2099-06-19 13:03	327.2	0.1004811	0.1000852	0.0001320
EARTH	2100-05-12 01:19	51.5	0.0491788	0.0485214	0.0002194
EARTH	2101-05-16 22:34	14.6	0.0175645	0.0174835	0.0000302
EARTH	2102-05-20 18:15	39.9	0.0722932	0.0705183	0.0005921
EARTH	2103-05-24 21:43	48.1	0.1486058	0.1458732	0.0009110

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
276.09764061	304.68854176	0.01180833	MINIMUM
89.11409799	132.31547408	0.01757095	MINIMUM
3.09912867	38.78328721	0.12318385	SADDLE
182.18957268	218.29694989	0.14146356	SADDLE
4.95625244	220.87343230	1.88029918	SADDLE
183.73393870	39.64155030	2.13624338	MAXIMUM

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MOID Plots

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