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101156 (1998 RQ74)
Classification: Main-belt Asteroid          SPK-ID: 2101156
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130016078345235 7.8091e-08  
a 2.575593068011227 1.4114e-08 au
q 2.026987603397382 1.9453e-07 au
i 7.576123963095522 6.9756e-06 deg
node 197.0645270714798 4.2192e-05 deg
peri 189.7680840404215 4.4154e-05 deg
M 75.96258613548078 1.6383e-05 deg
tp 2458681.925111889756
(2019-Jul-17.42511189)
6.7295e-05 TDB
period 1509.782190868823
4.13
1.241e-05
3.398e-08
d
yr
n .2384449903948287 1.96e-09 deg/d
Q 3.124198532625072 1.7121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      9240 days (25.30 yr)  
   first obs. used      1994-10-29  
   last obs. used      2020-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60102  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:06  

Additional Information
 Earth MOID = 1.03168 au 
 Jupiter MOID = 2.32694 au 
 T_jup = 3.383 
[ 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 15.7   n/a MPO502725  

101156 (1998 RQ74)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 RQ74 = 2002 RO29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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