+ 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
]
249289 (2008 TW53)
Classification:
Main-belt Asteroid
SPK-ID:
2249289
[
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 13
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1142299098070848
6.4141e-08
a
3.092925837229825
3.3072e-08
au
q
2.73962119780306
2.0815e-07
au
i
5.252827666314719
6.397e-06
deg
node
170.5093629172901
6.5861e-05
deg
peri
242.5994124838199
7.1699e-05
deg
M
309.716044037183
2.6099e-05
deg
t
p
2458878.010629947708
(2020-Jan-29.51062995)
0.00014419
TDB
period
1986.793299537723
5.44
3.1867e-05
8.725e-08
d
yr
n
.1811965039764141
2.9062e-09
deg/d
Q
3.44623047665659
3.685e-08
au
Orbit Determination Parameters
# obs. used (total)
172
data-arc span
6298 days (17.24 yr)
first obs. used
2002-08-27
last obs. used
2019-11-24
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.48335
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 18:47:07
Additional Information
Earth MOID
= 1.75507 au
Jupiter MOID
= 1.925 au
T_jup
= 3.208
[ 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
16.2
n/a
MPO454847
diameter
diameter
3.822
km
1.056
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.053
0.025
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
249289 (2008 TW53)
Discovered 2008-Oct-02 by Spacewatch at Kitt Peak
Reference:
20100824/Numbers.arc
Last Updated:
2010-08-27
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-11 20:25 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin