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120928 (1998 SP109)
Classification:
Main-belt Asteroid
SPK-ID:
2120928
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 23
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.104627060077182
3.2956e-08
a
2.260560405785115
7.8855e-09
au
q
2.024044616400936
7.464e-08
au
i
6.232499512084266
3.6974e-06
deg
node
236.64555388
3.7251e-05
deg
peri
154.309222739616
4.2536e-05
deg
M
178.2860142071902
2.1058e-05
deg
t
p
2458585.695019724183
(2019-Apr-12.19501972)
7.1515e-05
TDB
period
1241.431044849552
3.40
6.4957e-06
1.778e-08
d
yr
n
.2899879147485215
1.5173e-09
deg/d
Q
2.497076195169293
8.7105e-09
au
Orbit Determination Parameters
# obs. used (total)
805
data-arc span
7898 days (21.62 yr)
first obs. used
1998-09-26
last obs. used
2020-05-11
planetary ephem.
DE441
SB-pert. ephem.
SB441-N16
condition code
0
norm. resid. RMS
.51542
source
ORB
producer
Otto Matic
solution date
2021-Apr-13 17:08:47
Additional Information
Earth MOID
= 1.03096 au
Jupiter MOID
= 2.89074 au
T_jup
= 3.605
[ show covariance matrix ]
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Orbital Elements
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Close-Approach Data
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.05
n/a
E2021B55
rotation period
rot_per
10.7
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A.; Kornos, L.; Vilagi, J. (2010) Minor Planet Bull. 37, 9-15.]
120928 (1998 SP109)
Discovered 1998-Sep-26 by LINEAR at Socorro
Reference:
20060314/Numbers.arc
Last Updated:
2006-03-23
[ show close-approach data ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
|
Close-Approach Data
]
2021-Apr-21 15:52 UT
(server date/time)
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