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102077 (1999 RL146)
Classification: Main-belt Asteroid          SPK-ID: 2102077
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1806264399215966 4.2697e-08  
a 2.338832655024793 1.0042e-08 au
q 1.916377638975289 1.0194e-07 au
i 3.317824863746837 4.9546e-06 deg
node 227.6879074896236 7.0847e-05 deg
peri 127.2945563253645 7.1987e-05 deg
M 332.666665521995 1.3065e-05 deg
tp 2459299.694425221336
(2021-Mar-26.19442522)
4.7655e-05 TDB
period 1306.463106739383
3.58
8.4144e-06
2.304e-08
d
yr
n .2755531313076825 1.7747e-09 deg/d
Q 2.761287671074297 1.1856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      9657 days (26.44 yr)  
   first obs. used      1994-03-09  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:14  

Additional Information
 Earth MOID = .912346 au 
 Jupiter MOID = 2.69131 au 
 T_jup = 3.541 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457121.5 (2015-Apr-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1796077631229279 4.2515e-08  
q 1.919327298349582 1.013e-07 au
tp 2456687.005942614771
(2014-Jan-29.50594261)
4.4762e-05 TDB
node 227.8520374395358 7.0936e-05 deg
peri 127.178687934672 7.2092e-05 deg
i 3.31463594277962 4.951e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      9657 days (26.44 yr)  
   first obs. used      1994-03-09  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:14  

Additional Information
 Jupiter MOID = 2.69131 au 
 T_jup = 3.541 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.807504160748716E-15 -4.293121365369569E-15 4.88799141141342E-13 -8.732270288025233E-15 1.631516616732279E-13 4.112351528039104E-16
q -4.293121365369569E-15 1.026074858442378E-14 -1.129897178832336E-12 1.985884907437852E-14 -3.74303533549572E-13 -9.58635296916575E-16
tp 4.88799141141342E-13 -1.129897178832336E-12 2.003676353430197E-9 -2.01901267399175E-11 5.8986595606659E-10 1.030701199360853E-12
node -8.732270288025233E-15 1.985884907437852E-14 -2.01901267399175E-11 5.031880262256455E-9 -5.028224936014761E-9 -4.214855528852677E-11
peri 1.631516616732279E-13 -3.74303533549572E-13 5.8986595606659E-10 -5.028224936014761E-9 5.197201780730972E-9 4.234119731466614E-11
i 4.112351528039104E-16 -9.58635296916575E-16 1.030701199360853E-12 -4.214855528852677E-11 4.234119731466614E-11 2.451230761363219E-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 16.69   n/a E2021B55  
diameter diameter 1.328 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102077 (1999 RL146)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 RL146 = 2003 WS135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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