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JPL Small-Body Database Browser
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48949 (1998 QR16)
Classification:
Main-belt Asteroid
SPK-ID:
2048949
[
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 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1839835407103006
5.0183e-08
a
2.360993366654454
1.2138e-08
au
q
1.926609447463834
1.2054e-07
au
i
3.725555937033939
5.1775e-06
deg
node
300.9612066832474
7.4593e-05
deg
peri
53.39768247896492
7.6225e-05
deg
M
233.232936839672
2.0505e-05
deg
t
p
2459067.099754024230
(2020-Aug-05.59975402)
7.7999e-05
TDB
period
1325.075356808385
3.63
1.0219e-05
2.798e-08
d
yr
n
.2716826617824261
2.0951e-09
deg/d
Q
2.795377285845073
1.4371e-08
au
Orbit Determination Parameters
# obs. used (total)
646
data-arc span
10073 days (27.58 yr)
first obs. used
1991-10-11
last obs. used
2019-05-10
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56184
source
ORB
producer
Otto Matic
solution date
2019-May-30 04:39:36
Additional Information
Earth MOID
= .923369 au
Jupiter MOID
= 2.64665 au
T_jup
= 3.525
[ hide covariance matrix ]
Orbital Elements at Epoch 2456575.5 (2013-Oct-10.0) TDB
Reference:
JPL 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1824802584748385
4.9975e-08
q
1.930530723138683
1.1974e-07
au
t
p
2456416.763796609703
(2013-May-04.26379661)
6.5866e-05
TDB
node
301.0084870926101
7.4544e-05
deg
peri
53.40413069934674
7.6216e-05
deg
i
3.726475849371119
5.1764e-06
deg
Orbit Determination Parameters
# obs. used (total)
646
data-arc span
10073 days (27.58 yr)
first obs. used
1991-10-11
last obs. used
2019-05-10
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56184
source
ORB
producer
Otto Matic
solution date
2019-May-30 04:39:36
Additional Information
Jupiter MOID
= 2.64665 au
T_jup
= 3.525
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
2.497494950997034E-15
-5.963916010226532E-15
-8.530813253808602E-14
8.434353885079154E-15
-7.67139343897066E-14
1.098674608803861E-15
q
-5.963916010226532E-15
1.433764787700334E-14
5.453878480658605E-13
-2.197896193253406E-14
2.653216152218468E-13
-2.363348649685163E-15
tp
-8.530813253808602E-14
5.453878480658605E-13
4.338311116985184E-9
-1.656578566665821E-11
1.066875593789999E-9
8.821900005512241E-13
node
8.434353885079154E-15
-2.197896193253406E-14
-1.656578566665821E-11
5.556778389197224E-9
-5.548784357050359E-9
5.774561325315815E-11
peri
-7.67139343897066E-14
2.653216152218468E-13
1.066875593789999E-9
-5.548784357050359E-9
5.808855280913953E-9
-5.742370814086363E-11
i
1.098674608803861E-15
-2.363348649685163E-15
8.821900005512241E-13
5.774561325315815E-11
-5.742370814086363E-11
2.679556061402641E-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.7
n/a
MPO290802
48949 (1998 QR16)
Discovered 1998-Aug-17 by LINEAR at Socorro
Reference:
20021120/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1998 QR16
= 2000 CT20
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-13 05:52 UT
(server date/time)
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Ryan S. Park
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