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JPL Small-Body Database Browser
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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562426403328181 6.0827e-08  
a 2.209103928148952 1.3044e-08 au
q 1.863947697645359 1.387e-07 au
i 4.578401700073383 6.2085e-06 deg
node 284.897208720154 5.365e-05 deg
peri 7.061129183776325 5.5661e-05 deg
M 292.6379778601105 1.3683e-05 deg
tp 2459224.906412930694
(2021-Jan-10.40641293)
4.6065e-05 TDB
period 1199.28568188292
3.28
1.0622e-05
2.908e-08
d
yr
n .3001786858947467 2.6587e-09 deg/d
Q 2.554260158652544 1.5082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      8327 days (22.80 yr)  
   first obs. used      1997-04-11  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61681  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:09:21  

Additional Information
 Earth MOID = .847828 au 
 Jupiter MOID = 2.61376 au 
 T_jup = 3.638 
[ show covariance matrix ]

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1986-Aug-24 02:32 < 00:01 Eunom 0.0165076447029404 0.0165032221888658 0.0165120673472884 4.87519611281679 4.8751959383886 2446666.605576774 0.941228041137899 233.174240154375 61.7548908407903 -19.7950617903562 16800.3967838878 T 14 CATAB v2.0f-lin.ifort 2020-Feb-24 22:09:33 2020-Feb-24 22:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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