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120856 (1998 QP25)
Classification: Main-belt Asteroid          SPK-ID: 2120856
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07044963561696346 5.7756e-08  
a 2.934404685561937 2.3574e-08 au
q 2.727676944711388 1.6401e-07 au
i 11.48449002389922 6.7889e-06 deg
node 341.1859242379246 2.4427e-05 deg
peri 33.5171183289422 5.0291e-05 deg
M 81.55000057888162 4.2252e-05 deg
tp 2458584.589479767845
(2019-Apr-11.08947977)		 0.00021634 TDB
period 1836.024355864317
5.03		 2.2125e-05
6.057e-08		 d
yr
n .1960758302852297 2.3628e-09 deg/d
Q 3.141132426412486 2.5234e-08 au
   Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      8755 days (23.97 yr)  
   first obs. used      1996-01-26  
   last obs. used      2020-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:23:56  

Additional Information
 Earth MOID = 1.73357 au 
 Jupiter MOID = 2.23115 au 
 T_jup = 3.241 
[ 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 14.8   n/a MPO453679  
diameter diameter 6.026 km 0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120856 (1998 QP25)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 QP25 = 2003 QL17 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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