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JPL Small-Body Database Browser
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74855 (1999 TR87)
Classification:
Main-belt Asteroid
SPK-ID:
2074855
[
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 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1336556943342664
4.27e-08
a
2.319601510073431
1.2093e-08
au
q
2.009573559665754
1.0282e-07
au
i
7.345108116566162
6.0594e-06
deg
node
65.2153019907276
4.2645e-05
deg
peri
249.4076887867171
5.0181e-05
deg
M
264.4692316375877
2.8546e-05
deg
t
p
2458942.920116852654
(2020-Apr-03.42011685)
0.00010333
TDB
period
1290.382608452442
3.53
1.0091e-05
2.763e-08
d
yr
n
.2789870210911697
2.1816e-09
deg/d
Q
2.629629460481108
1.3709e-08
au
Orbit Determination Parameters
# obs. used (total)
586
data-arc span
7680 days (21.03 yr)
first obs. used
1998-05-01
last obs. used
2019-05-11
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.60456
source
ORB
producer
Otto Matic
solution date
2019-May-30 05:42:12
Additional Information
Earth MOID
= 1.00878 au
Jupiter MOID
= 2.62376 au
T_jup
= 3.556
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.0
n/a
MPO231844
74855 (1999 TR87)
Discovered 1999-Oct-15 by Spacewatch at Kitt Peak
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
]
2019-Dec-14 08:01 UT
(server date/time)
Site Manager:
Ryan S. Park
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