+ 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
]
160875 (2001 OQ21)
Classification:
Outer Main-belt Asteroid
SPK-ID:
2160875
[
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 18
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1492973309950234
8.2528e-08
a
3.413660420600468
5.335e-08
au
q
2.904010030881469
2.5713e-07
au
i
16.39449252351049
9.4486e-06
deg
node
337.4067505154169
2.0166e-05
deg
peri
58.31561611982736
3.7955e-05
deg
M
251.9222595912707
3.1914e-05
deg
t
p
2459292.112219026836
(2021-Mar-18.61221903)
0.00020898
TDB
period
2303.715805938065
6.31
5.4005e-05
1.479e-07
d
yr
n
.1562692755209053
3.6634e-09
deg/d
Q
3.923310810319467
6.1315e-08
au
Orbit Determination Parameters
# obs. used (total)
494
data-arc span
5760 days (15.77 yr)
first obs. used
2001-07-21
last obs. used
2017-04-28
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55266
source
ORB
producer
Otto Matic
solution date
2018-Oct-04 06:33:15
Additional Information
Earth MOID
= 1.94681 au
Jupiter MOID
= 1.74907 au
T_jup
= 3.061
[ hide covariance matrix ]
Orbital Elements at Epoch 2456617.5 (2013-Nov-21.0) TDB
Reference:
JPL 18
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1514454909861646
8.6963e-08
q
2.890549129222662
2.8053e-07
au
t
p
2456972.771351651231
(2014-Nov-11.27135165)
0.00018737
TDB
node
338.0956979531496
2.0105e-05
deg
peri
55.23983526028119
3.7215e-05
deg
i
16.49875726342753
9.4511e-06
deg
Orbit Determination Parameters
# obs. used (total)
494
data-arc span
5760 days (15.77 yr)
first obs. used
2001-07-21
last obs. used
2017-04-28
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55266
source
ORB
producer
Otto Matic
solution date
2018-Oct-04 06:33:15
Additional Information
Jupiter MOID
= 1.74907 au
T_jup
= 3.061
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
7.562621785869178E-15
-2.419767287069311E-14
-3.272293953719556E-12
9.977716388361173E-15
-1.072866558268957E-12
-6.222636805017926E-15
q
-2.419767287069311E-14
7.86960894750611E-14
1.328021993712143E-11
-4.926208819264804E-14
3.846120727018526E-12
2.883745337446855E-14
tp
-3.272293953719556E-12
1.328021993712143E-11
3.510718352037341E-8
-4.126408330917997E-11
5.771212069667183E-9
-4.300841144759009E-11
node
9.977716388361173E-15
-4.926208819264804E-14
-4.126408330917997E-11
4.042260085521461E-10
-3.946844838547753E-10
-2.59382150361298E-11
peri
-1.072866558268957E-12
3.846120727018526E-12
5.771212069667183E-9
-3.946844838547753E-10
1.38498995021841E-9
1.881109687128784E-11
i
-6.222636805017926E-15
2.883745337446855E-14
-4.300841144759009E-11
-2.59382150361298E-11
1.881109687128784E-11
8.932260979407734E-11
[
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
14.0
n/a
MPO366954
diameter
diameter
8.159
km
0.436
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.080
0.013
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
160875 (2001 OQ21)
Discovered 2001-Jul-21 by LONEOS at Anderson Mesa
Reference:
20070828/Numbers.arc
Last Updated:
2007-08-30
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-10 00:52 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin