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JPL Small-Body Database Browser
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249609 (1999 RL161)
Classification:
Main-belt Asteroid
SPK-ID:
2249609
[
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 12
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1454816381671955
6.4473e-08
a
2.352783915565036
1.5492e-08
au
q
2.010497057275206
1.5587e-07
au
i
6.970854303624896
6.1281e-06
deg
node
194.1609688878477
4.5239e-05
deg
peri
149.0722400568818
4.8123e-05
deg
M
157.3981098738325
1.791e-05
deg
t
p
2458024.173614916799
(2017-Sep-27.67361492)
6.3833e-05
TDB
period
1318.170204180105
3.61
1.3019e-05
3.564e-08
d
yr
n
.2731058545083093
2.6974e-09
deg/d
Q
2.695070773854866
1.7746e-08
au
Orbit Determination Parameters
# obs. used (total)
269
data-arc span
7113 days (19.47 yr)
first obs. used
1999-08-22
last obs. used
2019-02-11
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.58279
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 12:28:51
Additional Information
Earth MOID
= 1.00604 au
Jupiter MOID
= 2.72148 au
T_jup
= 3.532
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.8
n/a
MPO427417
249609 (1999 RL161)
Discovered 1999-Sep-09 by LINEAR at Socorro
Reference:
20100923/Numbers.arc
Last Updated:
2010-09-27
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-06 00:50 UT
(server date/time)
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Ryan S. Park
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