+ 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
]
442535 (2011 WA138)
Classification:
Main-belt Asteroid
SPK-ID:
2442535
[
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 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.03561123352995351
1.3097e-07
a
2.757131271658162
7.3203e-08
au
q
2.658946426070405
3.2402e-07
au
i
3.171946611208613
1.1176e-05
deg
node
345.3091255626999
0.00014092
deg
peri
152.4139083644413
0.0002525
deg
M
142.7390339366302
0.00022442
deg
t
p
2457937.482723176744
(2017-Jul-02.98272318)
0.0010197
TDB
period
1672.186038209691
4.58
6.6596e-05
1.823e-07
d
yr
n
.215287050468039
8.5739e-09
deg/d
Q
2.855316117245918
7.581e-08
au
Orbit Determination Parameters
# obs. used (total)
78
data-arc span
5614 days (15.37 yr)
first obs. used
2004-03-15
last obs. used
2019-07-29
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.57076
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 07:43:22
Additional Information
Earth MOID
= 1.6728 au
Jupiter MOID
= 2.13612 au
T_jup
= 3.340
[ hide covariance matrix ]
Orbital Elements at Epoch 2457376.5 (2015-Dec-20.0) TDB
Reference:
JPL 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.03414274730915149
1.2932e-07
q
2.662675210943619
3.1898e-07
au
t
p
2457930.161625686086
(2017-Jun-25.66162569)
0.0010776
TDB
node
345.4727285093658
0.00014073
deg
peri
150.742884622779
0.00026294
deg
i
3.175286537460042
1.1177e-05
deg
Orbit Determination Parameters
# obs. used (total)
78
data-arc span
5614 days (15.37 yr)
first obs. used
2004-03-15
last obs. used
2019-07-29
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.57076
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 07:43:22
Additional Information
Jupiter MOID
= 2.13612 au
T_jup
= 3.340
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
1.672467712797003E-14
-4.058333840126399E-14
7.774105972583194E-11
1.239955510624833E-14
1.602070687403572E-11
2.066924174016696E-14
q
-4.058333840126399E-14
1.017459276232187E-13
-1.480070959872523E-10
-5.765763987611818E-14
-3.057888940724427E-11
-4.787375871716263E-14
tp
7.774105972583194E-11
-1.480070959872523E-10
1.161187121163996E-6
-3.417814455835672E-10
2.393857614551389E-7
1.165404363141681E-10
node
1.239955510624833E-14
-5.765763987611818E-14
-3.417814455835672E-10
1.98054677203414E-8
-1.984414713557447E-8
-6.096927227876968E-10
peri
1.602070687403572E-11
-3.057888940724427E-11
2.393857614551389E-7
-1.984414713557447E-8
6.913485024785481E-8
6.327816048068933E-10
i
2.066924174016696E-14
-4.787375871716263E-14
1.165404363141681E-10
-6.096927227876968E-10
6.327816048068933E-10
1.249191359069778E-10
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
17.5
n/a
MPO349190
442535 (2011 WA138)
Discovered 2007-Dec-17 by Spacewatch at Kitt Peak
Reference:
Last Updated:
2015-09-02
Alternate Designations
2011 WA138
= 2013 CV134
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-15 02:56 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin