+ 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
]
344301 (2001 UM87)
Classification:
Main-belt Asteroid
SPK-ID:
2344301
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 6
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2006627386408547
2.2091e-07
a
2.351464340433751
1.2018e-08
au
q
1.879613066066003
5.2039e-07
au
i
4.121077041607616
9.8377e-06
deg
node
342.6624920027456
8.9662e-05
deg
peri
15.99411296608692
0.00010888
deg
M
323.9996867571223
3.5455e-05
deg
t
p
2458732.207286237557
(2019-Sep-05.70728624)
0.00012966
TDB
period
1317.061402372692
3.61
1.0097e-05
2.764e-08
d
yr
n
.2733357756528726
2.0954e-09
deg/d
Q
2.823315614801498
1.4429e-08
au
Orbit Determination Parameters
# obs. used (total)
108
data-arc span
6608 days (18.09 yr)
first obs. used
2001-09-28
last obs. used
2019-11-01
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.52991
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 22:56:20
Additional Information
Earth MOID
= .875287 au
Jupiter MOID
= 2.6235 au
T_jup
= 3.527
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
18.4
n/a
MPO402360
344301 (2001 UM87)
Discovered 2001-Oct-21 by Spacewatch at Kitt Peak
Reference:
20121128/Numbers.arc
Last Updated:
2012-12-03
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-05 16:31 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin