+ 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
]
117940 (6191 P-L)
Classification:
Main-belt Asteroid
SPK-ID:
2117940
[
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 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1927597399525225
4.2493e-08
a
3.133610254029646
2.5261e-08
au
q
2.529576356350333
1.406e-07
au
i
4.598813168201555
6.3553e-06
deg
node
222.0586439246945
6.0496e-05
deg
peri
107.0963652333078
6.3132e-05
deg
M
195.8718983453239
1.7091e-05
deg
t
p
2459524.232751318471
(2021-Nov-05.73275132)
0.00010008
TDB
period
2026.123418976224
5.55
2.45e-05
6.708e-08
d
yr
n
.1776792058313524
2.1485e-09
deg/d
Q
3.737644151708958
3.013e-08
au
Orbit Determination Parameters
# obs. used (total)
370
data-arc span
21341 days (58.43 yr)
first obs. used
1960-09-24
last obs. used
2019-02-28
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.64269
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 04:48:52
Additional Information
Earth MOID
= 1.52261 au
Jupiter MOID
= 1.66979 au
T_jup
= 3.179
[ 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
15.4
n/a
MPO432683
diameter
diameter
4.884
km
0.332
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.056
0.010
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
117940 (6191 P-L)
Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
Alternate Designations
6191 P-L
= 1999 RF61
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-15 05:38 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin