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18945 (2000 QH71)
Classification: Main-belt Asteroid          SPK-ID: 2018945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027547816228538 3.2485e-08  
a 2.425228714959495 8.385e-09 au
q 1.933501996472408 8.0162e-08 au
i 2.561237407903012 3.6177e-06 deg
node 216.5968188116066 8.0158e-05 deg
peri 4.054242940558561 8.0795e-05 deg
M 277.6435849660674 1.2756e-05 deg
tp 2459712.089403249873
(2022-May-12.58940325)
4.9873e-05 TDB
period 1379.518342598371
3.78
7.1543e-06
1.959e-08
d
yr
n .2609606475561081 1.3534e-09 deg/d
Q 2.916955433446582 1.0085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1541  
   data-arc span      9984 days (27.33 yr)  
   first obs. used      1993-10-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55141  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:05:54  

Additional Information
 Earth MOID = .925987 au 
 Jupiter MOID = 2.0574 au 
 T_jup = 3.481 
[ 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 14.86   n/a MPCxxxxx  

18945 (2000 QH71)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 QH71 = 1999 CN61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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