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175898 (1999 XL185)
Classification: Main-belt Asteroid          SPK-ID: 2175898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015845654264074 4.7772e-08  
a 2.430924912997599 1.2216e-08 au
q 1.940887970826751 1.1886e-07 au
i 6.140233795077 4.248e-06 deg
node 318.2436656549585 5.8676e-05 deg
peri 132.8929390774574 6.0474e-05 deg
M 186.9715937063519 1.7309e-05 deg
tp 2459865.881390755057
(2022-Oct-13.38139076)
7.0005e-05 TDB
period 1384.38136143553
3.79
1.0435e-05
2.857e-08
d
yr
n .2600439517812485 1.9602e-09 deg/d
Q 2.920961855168448 1.4678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56644  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:07:17  

Additional Information
 Earth MOID = .963274 au 
 Jupiter MOID = 2.28303 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO417952  

175898 (1999 XL185)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 XL185 = 2003 YD144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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