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JPL Small-Body Database Browser
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12922 (1998 WW19)
Classification: Main-belt Asteroid          SPK-ID: 2012922
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04964423371554016 4.1546e-08  
a 3.184817866455322 2.4957e-08 au
q 3.026710023951586 1.3004e-07 au
i 7.871170511572217 4.4115e-06 deg
node 96.24804317298732 3.1914e-05 deg
peri 267.4854029805727 5.6095e-05 deg
M 332.6555959224768 4.5558e-05 deg
tp 2459158.185329748364
(2020-Nov-04.68532975)
0.0002628 TDB
period 2075.990339686087
5.68
2.4402e-05
6.681e-08
d
yr
n .1734112115639402 2.0384e-09 deg/d
Q 3.342925708959057 2.6196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1516  
   data-arc span      16038 days (43.91 yr)  
   first obs. used      1975-10-30  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51723  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:39:23  

Additional Information
 Earth MOID = 2.03757 au 
 Jupiter MOID = 1.95425 au 
 T_jup = 3.182 
[ 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 13.0   n/a MPO452352  
diameter diameter 15.989 km 5.606 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.048   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

12922 (1998 WW19)          Discovered 1998-Nov-27 by Zoltowski, F. B. at Woomera
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WW19 = 1975 UV = 1988 AO3 = 1997 QN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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