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52815 (1998 QP98)
Classification: Main-belt Asteroid          SPK-ID: 2052815
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172946338140797 3.4805e-08  
a 2.37971559138972 6.1461e-09 au
q 1.862616163377034 8.2093e-08 au
i 6.618928842116516 3.672e-06 deg
node 255.9375747827307 2.8596e-05 deg
peri 133.65403201825 2.9988e-05 deg
M 73.21710660460548 6.9523e-06 deg
tp 2459123.793133906343
(2020-Oct-01.29313391)
2.5931e-05 TDB
period 1340.867952128841
3.67
5.1946e-06
1.422e-08
d
yr
n .2684828132616958 1.0401e-09 deg/d
Q 2.896815019402405 7.4816e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1606  
   data-arc span      12156 days (33.28 yr)  
   first obs. used      1987-12-23  
   last obs. used      2021-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:54:38  

Additional Information
 Earth MOID = .875 au 
 Jupiter MOID = 2.57027 au 
 T_jup = 3.498 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457793.5 (2017-Feb-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190697990137639 3.4963e-08  
q 1.857723301936282 8.26e-08 au
tp 2457782.460956172461
(2017-Jan-28.96095617)
2.6117e-05 TDB
node 255.9645356153883 2.8604e-05 deg
peri 133.465429341867 2.9957e-05 deg
i 6.619488938346478 3.675e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1606  
   data-arc span      12156 days (33.28 yr)  
   first obs. used      1987-12-23  
   last obs. used      2021-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:54:38  

Additional Information
 Jupiter MOID = 2.57027 au 
 T_jup = 3.498 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.222393270504886E-15 -2.8832227274034E-15 1.293863775784064E-13 -1.465340915269223E-14 5.861396339006834E-14 -3.43662793045986E-15
q -2.8832227274034E-15 6.822728929927257E-15 -3.386438149632475E-13 3.447447082807544E-14 -1.484355231569622E-13 8.102287108416944E-15
tp 1.293863775784064E-13 -3.386438149632475E-13 6.821084154860901E-10 -8.194596945678489E-12 2.408636966405556E-10 2.313732679237579E-14
node -1.465340915269223E-14 3.447447082807544E-14 -8.194596945678489E-12 8.181982906933097E-10 -8.150770728841779E-10 -3.261031537794425E-11
peri 5.861396339006834E-14 -1.484355231569622E-13 2.408636966405556E-10 -8.150770728841779E-10 8.974321772682363E-10 3.243556505706082E-11
i -3.43662793045986E-15 8.102287108416944E-15 2.313732679237579E-14 -3.261031537794425E-11 3.243556505706082E-11 1.35056705536167E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.87   n/a E2021B10  
diameter diameter 3.310 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.139   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52815 (1998 QP98)          Discovered 1998-Aug-28 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QP98 = 1987 YA4 = 1992 BX2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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