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63687 (2001 QH154)
Classification: Main-belt Asteroid          SPK-ID: 2063687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06726076302999161 4.656e-08  
a 2.803439792383698 1.5728e-08 au
q 2.614878292839329 1.2989e-07 au
i 14.21924219368244 4.0177e-06 deg
node 322.8775554639722 1.887e-05 deg
peri 245.0107634819243 3.8059e-05 deg
M 195.3958947457984 3.6722e-05 deg
tp 2459984.423057842280
(2023-Feb-08.92305784)
0.00017819 TDB
period 1714.491266104174
4.69
1.4428e-05
3.95e-08
d
yr
n .2099748229211021 1.7671e-09 deg/d
Q 2.992001291928066 1.6786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1098  
   data-arc span      9928 days (27.18 yr)  
   first obs. used      1994-01-12  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:55:02  

Additional Information
 Earth MOID = 1.64836 au 
 Jupiter MOID = 2.08866 au 
 T_jup = 3.276 
[ 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 14.55   n/a E2021B10  
diameter diameter 6.066 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

63687 (2001 QH154)          Discovered 2001-Aug-30 by Sarounova, L. at Ondrejov
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 QH154 = 1999 ER3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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