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JPL Small-Body Database Browser
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226920 (2004 TT221)
Classification:
Main-belt Asteroid
SPK-ID:
2226920
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 18
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2326538381560441
4.9712e-08
a
2.788698593251703
1.7981e-08
au
q
2.139897162071334
1.3894e-07
au
i
9.093135665710008
5.0571e-06
deg
node
73.0434593358251
3.7249e-05
deg
peri
316.4175132596039
3.9538e-05
deg
M
37.95341507404511
1.1267e-05
deg
t
p
2458421.171567397233
(2018-Oct-29.67156740)
5.3169e-05
TDB
period
1700.986211940257
4.66
1.6451e-05
4.504e-08
d
yr
n
.2116419271790335
2.0469e-09
deg/d
Q
3.437500024432073
2.2164e-08
au
Orbit Determination Parameters
# obs. used (total)
534
data-arc span
6649 days (18.20 yr)
first obs. used
2000-11-26
last obs. used
2019-02-09
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.5318
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 19:22:16
Additional Information
Earth MOID
= 1.15584 au
Jupiter MOID
= 2.02858 au
T_jup
= 3.272
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.3
n/a
MPO268234
diameter
diameter
5.637
km
0.073
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.051
0.008
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
226920 (2004 TT221)
Discovered 2004-Oct-07 by LINEAR at Socorro
Reference:
20091202/Numbers.arc
Last Updated:
2009-12-04
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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2019-Dec-15 21:37 UT
(server date/time)
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