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173228 (1998 VM42)
Classification: Main-belt Asteroid          SPK-ID: 2173228
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07684199209470624 5.4773e-08  
a 2.59755565532936 1.7963e-08 au
q 2.397954304196982 1.3945e-07 au
i 2.220990927599459 6.012e-06 deg
node 39.45504368792704 0.00014606 deg
peri 338.6813621263133 0.00015064 deg
M 73.44312301348805 3.674e-05 deg
tp 2458688.543273497730
(2019-Jul-24.04327350)
0.00015578 TDB
period 1529.134613736293
4.19
1.5861e-05
4.343e-08
d
yr
n .2354272781258772 2.4421e-09 deg/d
Q 2.797157006461739 1.9343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      7735 days (21.18 yr)  
   first obs. used      1998-11-15  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57826  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:01:00  

Additional Information
 Earth MOID = 1.39976 au 
 Jupiter MOID = 2.5535 au 
 T_jup = 3.411 
[ 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 16.9   n/a MPO502964  

173228 (1998 VM42)          Discovered 1998-Nov-15 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1998 VM42 = 2002 SG18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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