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85668 (1998 QH53)
Classification: Main-belt Asteroid          SPK-ID: 2085668
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .308382063459704 3.4183e-08  
a 2.60884400242273 7.2095e-09 au
q 1.804323305711136 8.9169e-08 au
i 3.555725243533508 3.4106e-06 deg
node 295.7485775349121 6.4456e-05 deg
peri 80.71650677992605 6.4781e-05 deg
M 140.7905909130925 4.9991e-06 deg
tp 2458794.575910857872
(2019-Nov-07.07591086)
2.1082e-05 TDB
period 1539.113307826988
4.21
6.38e-06
1.747e-08
d
yr
n .2339009078599089 9.6957e-10 deg/d
Q 3.413364699134325 9.4328e-09 au
  Orbit Determination Parameters
   # obs. used (total)      966  
   data-arc span      8297 days (22.72 yr)  
   first obs. used      1998-08-20  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49586  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:44  

Additional Information
 Earth MOID = .809224 au 
 Jupiter MOID = 2.08275 au 
 T_jup = 3.339 
[ 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 15.58   n/a E2021B10  

85668 (1998 QH53)          Discovered 1998-Aug-20 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 QH53 = 2000 DY50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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