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79456 (1997 WP56)
Classification: Main-belt Asteroid          SPK-ID: 2079456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08428113700037419 4.2988e-08  
a 2.89732271150976 2.1228e-08 au
q 2.65313305912671 1.2249e-07 au
i .05508422173407972 5.118e-06 deg
node 253.8940317749241 0.0070078 deg
peri 200.0187736719094 0.007008 deg
M 245.8098261300296 4.9779e-05 deg
tp 2459967.873332024032
(2023-Jan-23.37333202)
0.00025153 TDB
period 1801.331870839237
4.93
1.9797e-05
5.42e-08
d
yr
n .1998521237689958 2.1964e-09 deg/d
Q 3.141512363892809 2.3017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      8656 days (23.70 yr)  
   first obs. used      1997-11-22  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:02:42  

Additional Information
 Earth MOID = 1.66997 au 
 Jupiter MOID = 1.9901 au 
 T_jup = 3.283 
[ 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 15.82   n/a MPO637107  

79456 (1997 WP56)          Discovered 1997-Nov-22 by Spacewatch at Kitt Peak
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1997 WP56 = 2002 VV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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