+ 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
]
4415 Echnaton (4237 P-L)
Classification:
Main-belt Asteroid
SPK-ID:
2004415
[
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 21
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.06438687439477099
3.6793e-08
a
2.337634526281514
7.8005e-09
au
q
2.187121545656947
8.704e-08
au
i
2.011939840959291
4.0153e-06
deg
node
328.9769903970185
9.8633e-05
deg
peri
174.8962723152164
0.00010254
deg
M
7.308791517107861
2.7937e-05
deg
t
p
2458573.996305341195
(2019-Mar-31.49630534)
0.0001013
TDB
period
1305.459330018695
3.57
6.5343e-06
1.789e-08
d
yr
n
.2757650060188734
1.3803e-09
deg/d
Q
2.488147506906083
8.3028e-09
au
Orbit Determination Parameters
# obs. used (total)
1351
data-arc span
24987 days (68.41 yr)
first obs. used
1950-12-09
last obs. used
2019-05-08
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.52044
source
ORB
producer
Otto Matic
solution date
2019-May-30 00:26:44
Additional Information
Earth MOID
= 1.19969 au
Jupiter MOID
= 2.50555 au
T_jup
= 3.563
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.2
n/a
MPO431548
4415 Echnaton (4237 P-L)
Discovered 1960-Sep-24 by van Houten and Gehrels at Palomar
Reference:
DISCOVERY.DB
Last Updated:
2003-08-29
Alternate Designations
4237 P-L
= 1980 FK3
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-10 19:04 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin