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JPL Small-Body Database Browser
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305231 (2007 XR18)
Classification:
Main-belt Asteroid
SPK-ID:
2305231
[
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
.1163121111120457
9.1776e-08
a
2.710549012244585
3.8471e-08
au
q
2.395279334357747
2.6577e-07
au
i
12.19877072659378
1.042e-05
deg
node
270.1389207494767
4.2978e-05
deg
peri
88.81106244061247
6.5448e-05
deg
M
264.9554275787805
5.0211e-05
deg
t
p
2459030.837452175843
(2020-Jun-30.33745218)
0.00023224
TDB
period
1629.987687216067
4.46
3.4702e-05
9.501e-08
d
yr
n
.2208605640542359
4.7021e-09
deg/d
Q
3.025818690131423
4.2946e-08
au
Orbit Determination Parameters
# obs. used (total)
178
data-arc span
5671 days (15.53 yr)
first obs. used
2002-10-06
last obs. used
2018-04-16
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55598
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 10:02:38
Additional Information
Earth MOID
= 1.42879 au
Jupiter MOID
= 2.4434 au
T_jup
= 3.321
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.0
n/a
MPO433966
305231 (2007 XR18)
Discovered 2007-Dec-13 by OAM at Costitx
Reference:
20111110/Numbers.arc
Last Updated:
2011-11-14
[ hide close-approach data ]
Close-Approach Data
...sorted by
Date/Time (TDB)
Date/Time (TDB)
Time Uncertainty
(days_HH:MM)
Body
Nominal Distance (au)
Minimum Distance (au)
Maximum Distance (au)
V-relative (km/s)
V-infinity (km/s)
JD (TDB)
Time Uncertainty (minutes)
Semi-major axis (km)
Semi-minor axis (km)
range-LOV angle (deg)
N-sigma
BP
Orbit Ref.
Reference
Modified
1939-May-19 07:18
00:27
Iris
0.046421501099224
0.0463742606886673
0.0464687436814333
2.84215521513964
2.84215517156778
2429402.803953018
27.304218855681
2405.3054309083
103.134353356025
-11.9875829043654
14251.6531259384
T
8
CATAB v2.0e-lin.ifort 2019-Jul-14 10:02:40
2019-Jul-14 10:02
2146-Jun-21 23:43
00:04
Europ
0.039182966907033
0.0391500922284436
0.0392161108837149
6.52929858879244
6.52929854724848
2505042.488136603
3.49700647998871
5388.21428904968
100.845146913865
72.2477194566462
55343.7598888929
T
8
CATAB v2.0e-lin.ifort 2019-Jul-14 10:02:40
2019-Jul-14 10:02
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2019-Dec-15 19:52 UT
(server date/time)
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