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243655 (1999 US25)
Classification: Main-belt Asteroid          SPK-ID: 2243655
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2768238892455644 6.004e-08  
a 2.539726020863562 6.8015e-09 au
q 1.836669186149949 1.5497e-07 au
i 4.797412463272531 5.1734e-06 deg
node 28.92459844509569 3.5956e-05 deg
peri 338.6972641989927 3.6618e-05 deg
M 101.8868277121641 5.6419e-06 deg
tp 2458782.097501299404
(2019-Oct-25.59750130)
2.2362e-05 TDB
period 1478.35498380358
4.05
5.9386e-06
1.626e-08
d
yr
n .2435139083265207 9.7821e-10 deg/d
Q 3.242782855577174 8.6843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      7828 days (21.43 yr)  
   first obs. used      1999-10-12  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:07:40  

Additional Information
 Earth MOID = .83534 au 
 Jupiter MOID = 2.22018 au 
 T_jup = 3.387 
[ 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 16.57   n/a MPCxxxxx  

243655 (1999 US25)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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