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12955 (2162 T-2)
Classification:
Main-belt Asteroid
SPK-ID:
2012955
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 28
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.08098092443401245
3.2044e-08
a
2.626249915097092
1.0906e-08
au
q
2.413573769177783
8.2819e-08
au
i
4.446446740769495
4.144e-06
deg
node
192.8324887932491
4.4092e-05
deg
peri
85.29430866121619
5.0942e-05
deg
M
111.4358863501685
2.5783e-05
deg
t
p
2458719.300602477107
(2019-Aug-23.80060248)
0.00011105
TDB
period
1554.54215676887
4.26
9.6833e-06
2.651e-08
d
yr
n
.231579438635658
1.4425e-09
deg/d
Q
2.838926061016401
1.1789e-08
au
Orbit Determination Parameters
# obs. used (total)
1132
data-arc span
17282 days (47.32 yr)
first obs. used
1973-09-19
last obs. used
2021-01-12
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53943
source
ORB
producer
Otto Matic
solution date
2021-Feb-24 02:08:53
Additional Information
Earth MOID
= 1.40051 au
Jupiter MOID
= 2.24279 au
T_jup
= 3.393
[ show covariance matrix ]
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Orbital Elements
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.27
n/a
E2021B10
diameter
diameter
2.347
km
0.260
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.321
0.052
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
12955 (2162 T-2)
Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
19991222/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
2162 T-2
= 1998 MX13
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
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Close-Approach Data
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2021-Feb-24 21:42 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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