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74174 (1998 RL11)
Classification: Main-belt Asteroid          SPK-ID: 2074174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07119570859387364 4.9555e-08  
a 2.647482915625051 1.5055e-08 au
q 2.458993493456951 1.3331e-07 au
i 13.85044848579212 5.6308e-06 deg
node 7.566447894065235 2.0135e-05 deg
peri 84.76456132947803 4.951e-05 deg
M 295.8508829652357 4.3713e-05 deg
tp 2459280.873109667967
(2021-Mar-07.37310967)
0.00019129 TDB
period 1573.432716552727
4.31
1.3421e-05
3.674e-08
d
yr
n .2287991067001156 1.9516e-09 deg/d
Q 2.835972337793151 1.6127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:08:51  

Additional Information
 Earth MOID = 1.52112 au 
 Jupiter MOID = 2.30293 au 
 T_jup = 3.347 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457169.5 (2015-May-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07005120938867802 4.8582e-08  
q 2.46315113514327 1.3045e-07 au
tp 2457700.796830978608
(2016-Nov-08.29683098)
0.00019677 TDB
node 7.66151011749547 2.01e-05 deg
peri 83.36447939707297 5.0903e-05 deg
i 13.86383952395358 5.6339e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:08:51  

Additional Information
 Jupiter MOID = 2.30293 au 
 T_jup = 3.347 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.360200616195008E-15 -6.300787173287448E-15 4.374907096799309E-12 8.389324350345816E-15 1.11281984157455E-12 -5.904454781330072E-15
q -6.300787173287448E-15 1.701705635634382E-14 -1.142550922971714E-11 -2.40431516808481E-14 -2.931708871523716E-12 1.657633014636216E-14
tp 4.374907096799309E-12 -1.142550922971714E-11 3.87170012148492E-8 4.57981679587367E-11 9.216578497840649E-9 -7.1820414672122E-12
node 8.389324350345816E-15 -2.40431516808481E-14 4.57981679587367E-11 4.040257324916711E-10 -3.804562176451005E-10 -3.819883853585379E-11
peri 1.11281984157455E-12 -2.931708871523716E-12 9.216578497840649E-9 -3.804562176451005E-10 2.591066020672118E-9 3.517994922823837E-11
i -5.904454781330072E-15 1.657633014636216E-14 -7.1820414672122E-12 -3.819883853585379E-11 3.517994922823837E-11 3.174076790263626E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO502605  

74174 (1998 RL11)          Discovered 1998-Sep-13 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RL11 = 2002 PX99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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