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175802 (1999 RT149)
Classification: Main-belt Asteroid          SPK-ID: 2175802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2022111573479466 5.7286e-08  
a 3.06631985043797 3.325e-08 au
q 2.446275764681925 1.8074e-07 au
i 15.64205648455005 7.3405e-06 deg
node 337.6200759730555 1.7926e-05 deg
peri 307.643975345844 2.3422e-05 deg
M 21.97040993276566 1.6346e-05 deg
tp 2459080.809338256889
(2020-Aug-19.30933826)
8.8281e-05 TDB
period 1961.212301426368
5.37
3.19e-05
8.734e-08
d
yr
n .1835599336890636 2.9857e-09 deg/d
Q 3.686363936194014 3.9973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      7632 days (20.90 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:53  

Additional Information
 Earth MOID = 1.46316 au 
 Jupiter MOID = 1.75977 au 
 T_jup = 3.145 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457112.5 (2015-Mar-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2003667920650165 5.748e-08  
q 2.451750977396228 1.8085e-07 au
tp 2457121.922729802320
(2015-Apr-09.42272980)
8.1938e-05 TDB
node 337.6810834228348 1.7942e-05 deg
peri 307.8645728565582 2.3483e-05 deg
i 15.63238335866783 7.3361e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      7632 days (20.90 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:53  

Additional Information
 Jupiter MOID = 1.75977 au 
 T_jup = 3.145 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.303913425446349E-15 -1.028717377271591E-14 2.176611816971062E-12 -2.330303594881653E-15 3.573500409766316E-13 1.152564184103242E-16
q -1.028717377271591E-14 3.27079067234601E-14 -6.607621164291764E-12 4.963467822417446E-15 -1.081930851804116E-12 5.811215340862235E-15
tp 2.176611816971062E-12 -6.607621164291764E-12 6.713872421908633E-9 -5.628878336375216E-12 1.259588343880178E-9 -5.958135804562194E-12
node -2.330303594881653E-15 4.963467822417446E-15 -5.628878336375216E-12 3.219025426049375E-10 -3.104484235580967E-10 -1.253234902397628E-11
peri 3.573500409766316E-13 -1.081930851804116E-12 1.259588343880178E-9 -3.104484235580967E-10 5.514460429100866E-10 1.112484236199337E-11
i 1.152564184103242E-16 5.811215340862235E-15 -5.958135804562194E-12 -1.253234902397628E-11 1.112484236199337E-11 5.381800367378927E-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 14.96   n/a E2021B55  
diameter diameter 5.808 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175802 (1999 RT149)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

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Alternate Designations
 1999 RT149 = 2003 FA95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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