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JPL Small-Body Database Browser
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193804 (2001 PQ20)
Classification: Main-belt Asteroid          SPK-ID: 2193804
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1554894046070267 5.6877e-08  
a 2.288464241705804 1.3461e-08 au
q 1.932632299298497 1.2728e-07 au
i 7.319614409567365 8.0453e-06 deg
node 44.5268400843924 4.6419e-05 deg
peri 244.6665341704273 5.3773e-05 deg
M 180.4043056067829 3.0073e-05 deg
tp 2459631.323760437275
(2022-Feb-20.82376044)
0.00010862 TDB
period 1264.487740225001
3.46
1.1156e-05
3.054e-08
d
yr
n .2847002691666604 2.5119e-09 deg/d
Q 2.64429618411311 1.5553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      7773 days (21.28 yr)  
   first obs. used      1998-10-12  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55763  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:09:19  

Additional Information
 Earth MOID = .929994 au 
 Jupiter MOID = 2.52751 au 
 T_jup = 3.573 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO401553  

193804 (2001 PQ20)          Discovered 2001-Aug-10 by NEAT at Palomar
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 2001 PQ20 = 1998 TY10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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