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120411 (2857 P-L)
Classification:
Main-belt Asteroid
SPK-ID:
2120411
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 26
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2417496611806182
7.164e-08
a
2.544475586926289
1.2086e-08
au
q
1.929349475904504
1.8608e-07
au
i
5.477898318944234
4.2356e-06
deg
node
172.1518088325248
6.7826e-05
deg
peri
91.4062749203013
6.8459e-05
deg
M
31.65601924353502
9.8273e-06
deg
t
p
2459070.138406674546
(2020-Aug-08.63840667)
4.0175e-05
TDB
period
1482.503950863872
4.06
1.0563e-05
2.892e-08
d
yr
n
.2428324051279754
1.7302e-09
deg/d
Q
3.159601697948074
1.5008e-08
au
Orbit Determination Parameters
# obs. used (total)
928
data-arc span
21898 days (59.95 yr)
first obs. used
1960-09-24
last obs. used
2020-09-07
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.47421
source
ORB
producer
Otto Matic
solution date
2021-Feb-24 19:37:20
Additional Information
Earth MOID
= .92169 au
Jupiter MOID
= 1.95428 au
T_jup
= 3.396
[ show covariance matrix ]
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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
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.54
n/a
E2021B55
120411 (2857 P-L)
Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
20051116/Numbers.arc
Last Updated:
2005-11-21
[ show close-approach data ]
Alternate Designations
2857 P-L
= 2001 XT202
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2021-Mar-01 17:51 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin