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JPL Small-Body Database Browser
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74984 (1999 TW248)
Classification:
Main-belt Asteroid
SPK-ID:
2074984
[
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 18
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.07850537360781361
4.2938e-08
a
2.290021471223719
9.5471e-09
au
q
2.110242480055386
9.9136e-08
au
i
7.012703580505034
4.8056e-06
deg
node
184.6120725554038
3.4647e-05
deg
peri
235.8968505154439
4.519e-05
deg
M
217.2590341507567
3.0166e-05
deg
t
p
2459102.384621691595
(2020-Sep-09.88462169)
0.00010723
TDB
period
1265.778627277881
3.47
7.9155e-06
2.167e-08
d
yr
n
.2844099214838203
1.7786e-09
deg/d
Q
2.469800462392052
1.0297e-08
au
Orbit Determination Parameters
# obs. used (total)
916
data-arc span
7271 days (19.91 yr)
first obs. used
1999-10-08
last obs. used
2019-09-04
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.54346
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 02:44:15
Additional Information
Earth MOID
= 1.13007 au
Jupiter MOID
= 2.75305 au
T_jup
= 3.585
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.3
n/a
MPO436308
74984 (1999 TW248)
Discovered 1999-Oct-08 by CSS at Catalina
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-06 00:49 UT
(server date/time)
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Ryan S. Park
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