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JPL Small-Body Database Browser
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487700 (2015 RR21)
Classification:
Main-belt Asteroid
SPK-ID:
2487700
[
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
.2686523880916127
5.7089e-08
a
2.655457767046501
6.3599e-08
au
q
1.942062696453037
1.3469e-07
au
i
6.229266497610134
1.1703e-05
deg
node
194.1229273091085
6.5269e-05
deg
peri
256.0252921430247
7.1167e-05
deg
M
226.6034948978747
3.0857e-05
deg
t
p
2459186.165276162577
(2020-Dec-02.66527616)
0.00014895
TDB
period
1580.547400826684
4.33
5.6782e-05
1.555e-07
d
yr
n
.2277691892136273
8.1827e-09
deg/d
Q
3.368852837639965
8.0685e-08
au
Orbit Determination Parameters
# obs. used (total)
99
data-arc span
2892 days (7.92 yr)
first obs. used
2011-09-21
last obs. used
2019-08-22
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.59432
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 08:19:37
Additional Information
Earth MOID
= .969536 au
Jupiter MOID
= 1.90984 au
T_jup
= 3.328
[ hide covariance matrix ]
Orbital Elements at Epoch 2457583.5 (2016-Jul-14.0) TDB
Reference:
JPL 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2658889508641756
5.6984e-08
q
1.950818809054489
1.3419e-07
au
t
p
2457602.947525661660
(2016-Aug-02.44752566)
0.00012067
TDB
node
194.2071349916053
6.5046e-05
deg
peri
255.7816106781455
7.1196e-05
deg
i
6.233053828083793
1.1724e-05
deg
Orbit Determination Parameters
# obs. used (total)
99
data-arc span
2892 days (7.92 yr)
first obs. used
2011-09-21
last obs. used
2019-08-22
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.59432
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 08:19:37
Additional Information
Jupiter MOID
= 1.90984 au
T_jup
= 3.328
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
3.247138260424832E-15
-7.286634712015727E-15
4.091239672676578E-12
-4.979356249726698E-14
9.511037779755866E-13
2.927862557081464E-15
q
-7.286634712015727E-15
1.800723810326268E-14
-8.702436581718261E-12
1.05167869964266E-13
-2.024446320015838E-12
-3.984538092902195E-15
tp
4.091239672676578E-12
-8.702436581718261E-12
1.456012839999833E-8
-1.214792871771192E-10
3.553316214161987E-9
-4.010037425470148E-12
node
-4.979356249726698E-14
1.05167869964266E-13
-1.214792871771192E-10
4.230918054766112E-9
-4.233256480748723E-9
-4.88079038220517E-10
peri
9.511037779755866E-13
-2.024446320015838E-12
3.553316214161987E-9
-4.233256480748723E-9
5.068858341432082E-9
4.841396996912512E-10
i
2.927862557081464E-15
-3.984538092902195E-15
-4.010037425470148E-12
-4.88079038220517E-10
4.841396996912512E-10
1.374571576825208E-10
[
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
16.9
n/a
MPO456351
487700 (2015 RR21)
Discovered 2011-Sep-21 by Spacewatch at Kitt Peak
Reference:
Last Updated:
2017-03-14
[ show close-approach data ]
Alternate Designations
2015 RR21
= 2011 UM220
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-10 22:39 UT
(server date/time)
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