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43155 (1999 XE120)
Classification: Main-belt Asteroid          SPK-ID: 2043155
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06755789729472558 4.7212e-08  
a 2.982824075847003 1.7128e-08 au
q 2.781310753282696 1.4371e-07 au
i 9.137721935977384 4.2483e-06 deg
node 259.0472660133181 3.1248e-05 deg
peri 286.1203867960982 4.2755e-05 deg
M 269.7552336213133 3.0619e-05 deg
tp 2459672.192977802101
(2022-Apr-02.69297780)
0.00016126 TDB
period 1881.654513860656
5.15
1.6207e-05
4.437e-08
d
yr
n .1913209876458009 1.6479e-09 deg/d
Q 3.184337398411309 1.8285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1689  
   data-arc span      8236 days (22.55 yr)  
   first obs. used      1998-08-19  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:42  

Additional Information
 Earth MOID = 1.79846 au 
 Jupiter MOID = 1.88549 au 
 T_jup = 3.236 
[ show covariance matrix ]

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 13.65   n/a MPCxxxxx  
diameter diameter 6.274 km 0.231 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43155 (1999 XE120)          Discovered 1999-Dec-05 by CSS at Catalina
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XE120 = 1998 QQ71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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