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193809 (2001 PQ27)
Classification: Main-belt Asteroid          SPK-ID: 2193809
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562426393952493 5.3156e-08  
a 2.209103927786712 1.2369e-08 au
q 1.863947699410904 1.2415e-07 au
i 4.578397248427104 4.57e-06 deg
node 284.8971960755531 5.1908e-05 deg
peri 7.061142359330417 5.3832e-05 deg
M 292.6379775876625 1.3646e-05 deg
tp 2459224.906413783117
(2021-Jan-10.40641378)
4.5893e-05 TDB
period 1199.285681587939
3.28
1.0072e-05
2.758e-08
d
yr
n .3001786859685797 2.5211e-09 deg/d
Q 2.55426015616252 1.4301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      8444 days (23.12 yr)  
   first obs. used      1997-04-11  
   last obs. used      2020-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59354  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:25:37  

Additional Information
 Earth MOID = .847828 au 
 Jupiter MOID = 2.61376 au 
 T_jup = 3.638 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457060.5 (2015-Feb-07.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566786297018866 5.3193e-08  
q 1.8630519167186 1.2431e-07 au
tp 2456825.529405431890
(2014-Jun-17.02940543)
4.511e-05 TDB
node 284.9718679778113 5.1883e-05 deg
peri 6.902185355376783 5.3798e-05 deg
i 4.579523065550203 4.5719e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      8444 days (23.12 yr)  
   first obs. used      1997-04-11  
   last obs. used      2020-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59354  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:25:37  

Additional Information
 Jupiter MOID = 2.61376 au 
 T_jup = 3.638 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.829491913252921E-15 -6.597883453994802E-15 9.900396910934827E-13 1.83115085312459E-14 2.989810415245956E-13 -1.408134865045053E-15
q -6.597883453994802E-15 1.545242646916369E-14 -2.280194630607838E-12 -4.146440133433309E-14 -6.864106586598426E-13 3.76433385142611E-15
tp 9.900396910934827E-13 -2.280194630607838E-12 2.034956447872792E-9 1.144451159196321E-11 6.554027729671484E-10 5.811325491504088E-13
node 1.83115085312459E-14 -4.146440133433309E-14 1.144451159196321E-11 2.691895349604753E-9 -2.679145252880193E-9 7.166907057525078E-11
peri 2.989810415245956E-13 -6.864106586598426E-13 6.554027729671484E-10 -2.679145252880193E-9 2.894238863601258E-9 -7.125851802603497E-11
i -1.408134865045053E-15 3.76433385142611E-15 5.811325491504088E-13 7.166907057525078E-11 -7.125851802603497E-11 2.090265089879748E-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 16.9   n/a MPO418041  
diameter diameter 1.713 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193809 (2001 PQ27)          Discovered 2001-Aug-11 by NEAT at Haleakala
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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