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216464 (1974 PB)
Classification: Mars-crossing Asteroid          SPK-ID: 2216464
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3430396676411024 6.3736e-08  
a 2.317259107844379 1.0275e-08 au
q 1.522347313651125 1.4602e-07 au
i 6.584905353164329 4.3249e-06 deg
node 146.2851017745796 5.7366e-05 deg
peri 190.7751231426615 5.8459e-05 deg
M 42.61740143366551 9.6643e-06 deg
tp 2459047.973681399016
(2020-Jul-17.47368140)
3.4747e-05 TDB
period 1288.428502188749
3.53
8.5694e-06
2.346e-08
d
yr
n .2794101491766452 1.8584e-09 deg/d
Q 3.112170902037632 1.3799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      16975 days (46.48 yr)  
   first obs. used      1974-08-12  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52873  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:55  

Additional Information
 Earth MOID = .511572 au 
 Jupiter MOID = 2.28779 au 
 T_jup = 3.491 
[ 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 17.71   n/a E2021B55  

216464 (1974 PB)          Discovered 1974-Aug-12 by Gehrels, T. at Palomar
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 1974 PB = 2002 LE34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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