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43802 (1991 PY18)
Classification: Main-belt Asteroid          SPK-ID: 2043802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2092496473124359 3.5202e-08  
a 2.388552327939848 7.8168e-09 au
q 1.888748595731137 8.5712e-08 au
i 3.571742325069866 3.5257e-06 deg
node 323.0708457435638 5.9178e-05 deg
peri 27.03469436864037 5.9642e-05 deg
M 327.0643801397824 9.1631e-06 deg
tp 2459323.857030914128
(2021-Apr-19.35703091)
3.4594e-05 TDB
period 1348.343565949599
3.69
6.6189e-06
1.812e-08
d
yr
n .2669942654759973 1.3107e-09 deg/d
Q 2.888356060148559 9.4525e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      10569 days (28.94 yr)  
   first obs. used      1991-08-07  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:22:31  

Additional Information
 Earth MOID = .881627 au 
 Jupiter MOID = 2.54368 au 
 T_jup = 3.501 
[ 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 15.22   n/a E2021B10  

43802 (1991 PY18)          Discovered 1991-Aug-10 by Holt, H. E. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 PY18 = 1995 UA4 = 1997 BL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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