+ View the NASA Portal
+ Center for Near-Earth Object Studies
IMPORTANT:
The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.
Please visit
this page
for more details.
Don't show this message again
JPL Small-Body Database Browser
Search:
[
help
]
74726 (1999 RW169)
Classification:
Main-belt Asteroid
SPK-ID:
2074726
[
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
.212088831686899
6.1635e-08
a
2.376143047224805
1.4575e-08
au
q
1.872189644417948
1.4257e-07
au
i
1.759896875419679
3.5075e-06
deg
node
279.7790599187565
0.00015995
deg
peri
65.43271240292714
0.00016033
deg
M
131.9986477773482
1.4657e-05
deg
t
p
2458109.960163831886
(2017-Dec-22.46016383)
5.0815e-05
TDB
period
1337.849621902155
3.66
1.231e-05
3.37e-08
d
yr
n
.2690885388808885
2.4759e-09
deg/d
Q
2.880096450031662
1.7667e-08
au
Orbit Determination Parameters
# obs. used (total)
420
data-arc span
7596 days (20.80 yr)
first obs. used
1998-04-23
last obs. used
2019-02-08
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55401
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 04:18:47
Additional Information
Earth MOID
= .86475 au
Jupiter MOID
= 2.53478 au
T_jup
= 3.510
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.7
n/a
MPO313951
74726 (1999 RW169)
Discovered 1999-Sep-09 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1999 RW169
= 2002 JD137
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-07 01:45 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin