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18230 (3285 T-1)
Classification:
Main-belt Asteroid
SPK-ID:
2018230
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 26
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2114377660026906
3.5528e-08
a
2.45297766727549
8.6758e-09
au
q
1.934325549252269
8.6299e-08
au
i
4.85249532725174
5.2029e-06
deg
node
189.1858920982081
3.6672e-05
deg
peri
296.8864393332692
3.8607e-05
deg
M
21.73468040237127
1.1171e-05
deg
t
p
2459115.779292091714
(2020-Sep-23.27929209)
4.3357e-05
TDB
period
1403.262172820146
3.84
7.4447e-06
2.038e-08
d
yr
n
.2565450754483785
1.361e-09
deg/d
Q
2.971629785298711
1.051e-08
au
Orbit Determination Parameters
# obs. used (total)
1272
data-arc span
18254 days (49.98 yr)
first obs. used
1971-03-24
last obs. used
2021-03-15
planetary ephem.
DE441
SB-pert. ephem.
SB441-N16
condition code
0
norm. resid. RMS
.52984
source
ORB
producer
Otto Matic
solution date
2021-Apr-13 02:25:27
Additional Information
Earth MOID
= .955088 au
Jupiter MOID
= 2.11757 au
T_jup
= 3.459
[ show covariance matrix ]
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Orbital Elements
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.04
n/a
E2021B10
18230 (3285 T-1)
Discovered 1971-Mar-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
20001013/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
3285 T-1
= 1998 HO56
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2021-Apr-20 08:44 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin
