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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07058263095320345 5.772e-08  
a 2.934446469638671 2.2706e-08 au
q 2.727325517420234 1.6367e-07 au
i 11.48541950425989 6.7176e-06 deg
node 341.1819815053148 2.3597e-05 deg
peri 33.54981918700308 4.8718e-05 deg
M 120.7197431740618 4.1253e-05 deg
tp 2458584.807992130254
(2019-Apr-11.30799213)
0.00021122 TDB
period 1836.063571751639
5.03
2.131e-05
5.834e-08
d
yr
n .1960716423650589 2.2757e-09 deg/d
Q 3.141567421857108 2.4308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      595  
   data-arc span      9070 days (24.83 yr)  
   first obs. used      1996-01-26  
   last obs. used      2020-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:03  

Additional Information
 Earth MOID = 1.73169 au 
 Jupiter MOID = 2.23063 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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