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102145 (1999 RQ188)
Classification: Main-belt Asteroid          SPK-ID: 2102145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803390427850647 3.2998e-08  
a 2.542193724031389 1.0396e-08 au
q 2.083736941265369 8.177e-08 au
i 2.529521238005751 3.3205e-06 deg
node 54.4482124717733 0.0001222 deg
peri 328.234310891761 0.00012309 deg
M 67.27914386612846 1.6323e-05 deg
tp 2458923.812623268960
(2020-Mar-15.31262327)
6.6746e-05 TDB
period 1480.510153657314
4.05
9.082e-06
2.487e-08
d
yr
n .2431594265737994 1.4916e-09 deg/d
Q 3.000650506797408 1.2271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      10721 days (29.35 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50295  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:34  

Additional Information
 Earth MOID = 1.08628 au 
 Jupiter MOID = 2.45589 au 
 T_jup = 3.420 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457304.5 (2015-Oct-09.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182120582840177 3.3476e-08  
q 2.078615548185802 8.329e-08 au
tp 2457440.598995993705
(2016-Feb-22.09899599)
6.3695e-05 TDB
node 54.46451432794929 0.00012208 deg
peri 327.6204243830526 0.00012294 deg
i 2.533130794253469 3.3173e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      10721 days (29.35 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50295  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:34  

Additional Information
 Jupiter MOID = 2.45589 au 
 T_jup = 3.420 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.120623665491399E-15 -2.774748045311882E-15 -8.770956903474793E-13 -1.10075847394848E-14 -2.058848654652237E-13 -7.382480590078996E-16
q -2.774748045311882E-15 6.937163883842857E-15 2.295854210037266E-12 2.693671353727858E-14 5.375102982117323E-13 1.897468939500368E-15
tp -8.770956903474793E-13 2.295854210037266E-12 4.057002934893575E-9 4.654805420654858E-11 9.664400174272515E-10 2.064594154212961E-12
node -1.10075847394848E-14 2.693671353727858E-14 4.654805420654858E-11 1.490410589603576E-8 -1.487797830795228E-8 7.373317826277504E-11
peri -2.058848654652237E-13 5.375102982117323E-13 9.664400174272515E-10 -1.487797830795228E-8 1.511309278798286E-8 -7.315217181532258E-11
i -7.382480590078996E-16 1.897468939500368E-15 2.064594154212961E-12 7.373317826277504E-11 -7.315217181532258E-11 1.100443304538727E-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 16.1   n/a MPO449617  

102145 (1999 RQ188)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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