Asteroids

2012BX34 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.488

Aphelion (Q)

1.033

Eccentricity (e)

0.358

Inclination (i)

10.5

deg

Orbit period (P)

242.2

Earth MOID

0.00022

U parameter

3.0

Next Earth close approach

Date

2062-12-12

Nominal distance (from Earth center)

0.17493

26169611

Maximum Brightness

27.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

0.07530

Discovery Information

Discovery Date

2012-01-25

Observatory

University of Arizona 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.760336

1-sigma variation

6.016E-8

Unit

Eccentricity (e)

Value

0.358235

1-sigma variation

3.458E-7

Unit

Inclination (i)

Value

10.5250

1-sigma variation

4.934E-5

Unit

Long. of Ascending Node (Ω)

Value

306.6651

1-sigma variation

1.507E-5

Unit

Arg. of Perihelion (ω)

Value

335.9767

1-sigma variation

4.196E-5

Unit

Mean Anomaly (M)

Value

98.43021

1-sigma variation

0.00303

Unit

Perihelion distance

Value

0.487957

1-sigma variation

Unit

Aphelion distance

Value

1.032715

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.516192

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.000356

1-sigma variation

Unit

MOID

Value

0.000223

1-sigma variation

Unit

Orbit Period

Value

242.1623

1-sigma variation

Unit

U parameter

Value

3.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.61899E-15	-1.02468E-14	1.86414E-12	-8.99022E-13	-2.07961E-13	-1.81981E-10
e	-1.02468E-14	1.19551E-13	4.65260E-12	3.06115E-12	-1.19906E-11	5.76288E-10
i	1.86414E-12	4.65260E-12	2.43418E-9	-3.95959E-10	-1.48600E-9	-8.65936E-8
Ω	-8.99022E-13	3.06115E-12	-3.95959E-10	2.27107E-10	-2.02613E-11	4.55679E-8
ω	-2.07961E-13	-1.19906E-11	-1.48600E-9	-2.02613E-11	1.76051E-9	1.97729E-9
M	-1.81981E-10	5.76288E-10	-8.65936E-8	4.55679E-8	1.97729E-9	9.19260E-6

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

0.07530

Unit

Source

[1]

Quality

Value

Unit

Source

[1]

Amplitude

Value

0.37

Unit

mag

Source

[1]

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

27.693

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

8 - 17*

Unit

Source

[3]

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

[4]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Hergenrother, C.W. et al. (2012) ACM2012, 6484. (NEW RESULTS ON ROTATION OF VERY SMALL NEAR-EARTH ASTEROIDS) (2008 WA14,2008WD14,2008XC1,2009DP4,2009FJ,2011LL2,2011WJ15, 2012BX34)
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	Estimation	Estimated from absolute magnitude
[4]	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

Unit

Source

[1]

Unobserved

Value

5273

Unit

Source

[1]

Normalized RMS of residuals

Value

0.577703

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2012-01-25.43154

Unit

Source

[2]

Last Observation

Value

2012-01-27.56974

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

127 (4)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2012-01-27

Unit

Source

[3]

Last Observation

Value

2012-01-27

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

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Max residual (arcsec):

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Computation parameters

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Final Date: *

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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 2012BX34 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	1955-11-27 12:10	> 1 d	0.1988024	0.1844287	0.0085306
EARTH	1959-01-27 10:42	6.2	0.0014935	0.0012339	0.0000873
EARTH	1964-01-23 00:22	18.9	0.0525999	0.0522992	0.0001002
EARTH	1969-01-10 15:21	27.5	0.1092495	0.1090502	0.0000665
EARTH	1973-12-24 22:39	24.2	0.1508877	0.1507795	0.0000361
EARTH	1978-12-07 19:20	11.0	0.1816627	0.1815797	0.0000277
EARTH	1997-01-27 06:04	< 1 min	0.1851179	0.1850668	0.0000170
EARTH	2002-01-28 20:30	< 1 min	0.0985488	0.0985385	0.0000034
EARTH	2007-01-28 10:06	< 1 min	0.0251718	0.0251056	0.0000221
EARTH	2012-01-27 15:24	< 1 s	0.0004371	0.0004371	0.0000000
EARTH	2014-01-28 16:09	< 1 min	0.0246829	0.0246427	0.0000134
EARTH	2016-01-30 10:49	< 1 min	0.0672861	0.0672277	0.0000194
EARTH	2018-01-30 02:17	< 1 min	0.1185504	0.1184800	0.0000235
EARTH	2020-01-29 20:51	< 1 min	0.1750962	0.1750169	0.0000264
MERCURY	2050-02-09 05:30	7.4	0.0458676	0.0457403	0.0000424
MERCURY	2052-10-05 12:21	7.6	0.0341733	0.0340838	0.0000299
MERCURY	2055-06-01 20:33	7.5	0.0284018	0.0283961	0.0000020
MERCURY	2058-01-26 05:42	7.2	0.0342151	0.0341182	0.0000323
EARTH	2062-12-12 11:05	1.6	0.1749330	0.1748515	0.0000272
EARTH	2064-12-15 06:32	4.4	0.1445822	0.1445228	0.0000198
EARTH	2066-12-22 10:09	8.3	0.1240293	0.1239851	0.0000148
EARTH	2068-12-30 21:26	11.0	0.1070754	0.1070289	0.0000155
EARTH	2071-01-09 15:40	11.6	0.0872182	0.0871561	0.0000207
EARTH	2073-01-17 04:23	10.0	0.0621941	0.0621129	0.0000271
EARTH	2075-01-23 12:28	6.9	0.0331659	0.0330732	0.0000309
EARTH	2077-01-26 07:00	3.2	0.0063219	0.0062523	0.0000232
EARTH	2079-01-24 21:34	27.7	0.0237101	0.0232502	0.0001533
EARTH	2081-01-20 03:34	62.4	0.0500738	0.0494224	0.0002172
EARTH	2083-01-14 03:00	99.5	0.0759968	0.0753222	0.0002250
EARTH	2085-01-05 12:12	127.9	0.0977533	0.0971435	0.0002037
EARTH	2086-12-28 06:50	135.6	0.1150059	0.1144538	0.0001851
EARTH	2088-12-19 08:59	112.5	0.1310918	0.1304605	0.0002124
EARTH	2090-12-13 21:03	69.0	0.1512046	0.1502421	0.0003236
EARTH	2092-12-10 11:00	28.4	0.1803052	0.1788563	0.0004856
MERCURY	2101-06-01 20:47	178.7	0.0381933	0.0369670	0.0004558
MERCURY	2116-11-02 01:05	204.8	0.0398336	0.0378001	0.0007483

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
214.40336924	24.93620195	0.00006403	MINIMUM
356.20344726	176.08299520	0.53333037	SADDLE
358.69955905	359.81149162	1.47058238	SADDLE
180.81137024	182.20244432	2.04952770	MAXIMUM

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MOID Plots

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