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JPL Small-Body Database Browser
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59841 (1999 RH54)
Classification: Main-belt Asteroid          SPK-ID: 2059841
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876980353075128 3.0891e-08  
a 2.421487870160738 9.574e-09 au
q 1.966979354410594 7.7022e-08 au
i 3.242625231816852 3.1235e-06 deg
node 47.92977741479237 9.0831e-05 deg
peri 346.4356203030445 9.1789e-05 deg
M 135.2769805281798 1.4374e-05 deg
tp 2458483.318151692343
(2018-Dec-30.81815169)
5.3702e-05 TDB
period 1376.327773312268
3.77
8.1625e-06
2.235e-08
d
yr
n .2615656001285396 1.5512e-09 deg/d
Q 2.875996385910882 1.1371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      8456 days (23.15 yr)  
   first obs. used      1996-12-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:55:27  

Additional Information
 Earth MOID = .973738 au 
 Jupiter MOID = 2.55367 au 
 T_jup = 3.487 
[ 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 15.8   n/a MPO459260  

59841 (1999 RH54)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RH54 = 2001 DH25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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