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JPL Small-Body Database Browser
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66602 (1999 RH187)
Classification: Main-belt Asteroid          SPK-ID: 2066602
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1878572046943237 5.5032e-08  
a 2.564510154291577 1.2533e-08 au
q 2.082748445296152 1.4736e-07 au
i 4.46878460409227 5.0897e-06 deg
node 105.1963184502036 4.9585e-05 deg
peri 198.68364003 5.1114e-05 deg
M 45.06037296707253 1.39e-05 deg
tp 2458812.742478934314
(2019-Nov-25.24247893)
5.7212e-05 TDB
period 1500.047672331516
4.11
1.0996e-05
3.011e-08
d
yr
n .2399923726693659 1.7593e-09 deg/d
Q 3.046271863287001 1.4887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      7792 days (21.33 yr)  
   first obs. used      1998-04-20  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58026  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 07:51:22  

Additional Information
 Earth MOID = 1.06804 au 
 Jupiter MOID = 2.19219 au 
 T_jup = 3.404 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457186.5 (2015-Jun-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187837653646467 5.4805e-08  
q 2.083120375973475 1.4674e-07 au
tp 2457313.939534225897
(2015-Oct-18.43953423)
5.3048e-05 TDB
node 105.2171839837566 4.9614e-05 deg
peri 199.06385703198 5.1165e-05 deg
i 4.467454199771934 5.088e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      7792 days (21.33 yr)  
   first obs. used      1998-04-20  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58026  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 07:51:22  

Additional Information
 Jupiter MOID = 2.19219 au 
 T_jup = 3.404 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.003610872467671E-15 -8.029546021171589E-15 -1.435498773204754E-12 3.522115447022055E-15 -2.410103289349552E-13 -1.289814453518888E-15
q -8.029546021171589E-15 2.153299180169095E-14 3.858459977481313E-12 -8.855982444692296E-15 6.477695801656564E-13 3.473234366582928E-15
tp -1.435498773204754E-12 3.858459977481313E-12 2.814132954288872E-9 -2.68240997168175E-12 6.673468186105237E-10 1.713865285035438E-12
node 3.522115447022055E-15 -8.855982444692296E-15 -2.68240997168175E-12 2.461520142663114E-9 -2.454127445419041E-9 -5.737354212528707E-11
peri -2.410103289349552E-13 6.477695801656564E-13 6.673468186105237E-10 -2.454127445419041E-9 2.617829788372964E-9 5.756809595078261E-11
i -1.289814453518888E-15 3.473234366582928E-15 1.713865285035438E-12 -5.737354212528707E-11 5.756809595078261E-11 2.588760255973754E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO493335  

66602 (1999 RH187)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RH187 = 1998 HZ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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