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66457 (1999 PY7)
Classification: Main-belt Asteroid          SPK-ID: 2066457
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2348387471078507 1.1752e-07  
a 2.528120713059936 1.2018e-08 au
q 1.934420012267535 2.9955e-07 au
i 2.510645643363 1.0467e-05 deg
node 317.8351371556579 9.2521e-05 deg
peri 343.7662569454632 9.3473e-05 deg
M 120.8905873907108 1.0169e-05 deg
tp 2458707.456628891450
(2019-Aug-11.95662889)
4.008e-05 TDB
period 1468.23352777188
4.02
1.0469e-05
2.866e-08
d
yr
n .2451926026688129 1.7484e-09 deg/d
Q 3.121821413852337 1.484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      404  
   data-arc span      7852 days (21.50 yr)  
   first obs. used      1999-07-20  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:20  

Additional Information
 Earth MOID = .917139 au 
 Jupiter MOID = 2.12094 au 
 T_jup = 3.412 
[ 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 16.22   n/a MPCxxxxx  

66457 (1999 PY7)          Discovered 1999-Aug-07 by LONEOS at Anderson Mesa
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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