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JPL Small-Body Database Browser
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74111 (1998 QD39)
Classification:
Main-belt Asteroid
SPK-ID:
2074111
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 8
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2155212076105986
6.9434e-08
a
2.449327892486366
1.1848e-08
au
q
1.921445787263382
1.7424e-07
au
i
1.587150267889416
6.8016e-06
deg
node
352.5320464361299
0.00021794
deg
peri
322.6029411756767
0.00021829
deg
M
155.7993834126343
1.28e-05
deg
t
p
2457994.556609040086
(2017-Aug-29.05660904)
4.9056e-05
TDB
period
1400.131476565776
3.83
1.0159e-05
2.781e-08
d
yr
n
.2571187106535189
1.8656e-09
deg/d
Q
2.97720999770935
1.4402e-08
au
Orbit Determination Parameters
# obs. used (total)
316
data-arc span
7441 days (20.37 yr)
first obs. used
1998-08-17
last obs. used
2018-12-31
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.63207
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 08:02:11
Additional Information
Earth MOID
= .907197 au
Jupiter MOID
= 2.31601 au
T_jup
= 3.464
[ show covariance matrix ]
[
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
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.6
n/a
MPO319935
74111 (1998 QD39)
Discovered 1998-Aug-17 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1998 QD39
= 2002 RR97
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-09 21:13 UT
(server date/time)
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