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JPL Small-Body Database Browser
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233971 (1991 TD2)
Classification:
Main-belt Asteroid
SPK-ID:
2233971
[
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 12
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2171855176645849
4.1537e-08
a
2.24523752476059
1.1734e-08
au
q
1.75760445066551
9.4077e-08
au
i
6.567453353360955
6.2088e-06
deg
node
178.0097247164064
3.7834e-05
deg
peri
128.3238681768661
4.111e-05
deg
M
120.6348300895037
1.6573e-05
deg
t
p
2458188.723004064272
(2018-Mar-11.22300406)
5.4514e-05
TDB
period
1228.830168093884
3.36
9.6333e-06
2.637e-08
d
yr
n
.2929615575425029
2.2967e-09
deg/d
Q
2.732870598855671
1.4283e-08
au
Orbit Determination Parameters
# obs. used (total)
233
data-arc span
9872 days (27.03 yr)
first obs. used
1991-10-08
last obs. used
2018-10-18
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.63962
source
ORB
producer
Otto Matic
solution date
2018-Oct-31 04:04:34
Additional Information
Earth MOID
= .751458 au
Jupiter MOID
= 2.55016 au
T_jup
= 3.592
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
17.4
n/a
MPO454692
233971 (1991 TD2)
Discovered 1991-Oct-08 by Spacewatch at Kitt Peak
Reference:
20100330/Numbers.arc
Last Updated:
2010-04-05
Alternate Designations
1991 TD2
= 2001 SJ219
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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2019-Dec-10 00:25 UT
(server date/time)
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