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120424 (2099 T-2)
Classification:
Main-belt Asteroid
SPK-ID:
2120424
[
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 17
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2037689787640788
6.2382e-08
a
2.736967577902646
1.5801e-08
au
q
2.17925848964303
1.6596e-07
au
i
10.70150755225906
5.2005e-06
deg
node
2.264531775875566
2.9081e-05
deg
peri
59.87067544274722
3.6775e-05
deg
M
113.9705846643306
1.6424e-05
deg
t
p
2458676.907783990217
(2019-Jul-12.40778399)
7.5262e-05
TDB
period
1653.875851551324
4.53
1.4322e-05
3.921e-08
d
yr
n
.2176705099492943
1.885e-09
deg/d
Q
3.294676666162262
1.9021e-08
au
Orbit Determination Parameters
# obs. used (total)
497
data-arc span
17015 days (46.58 yr)
first obs. used
1973-09-19
last obs. used
2020-04-20
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.54198
source
ORB
producer
Otto Matic
solution date
2020-May-20 20:37:44
Additional Information
Earth MOID
= 1.21278 au
Jupiter MOID
= 2.18627 au
T_jup
= 3.297
[ 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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Close-Approach Data
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.83
n/a
E2021B55
120424 (2099 T-2)
Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
20051116/Numbers.arc
Last Updated:
2005-11-21
[ show close-approach data ]
Alternate Designations
2099 T-2
= 1998 HC158 = 2002 CG33
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2021-Mar-07 05:41 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin