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JPL Small-Body Database Browser
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52836 (1998 RK55)
Classification: Main-belt Asteroid          SPK-ID: 2052836
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1538865219088338 3.3767e-08  
a 2.224049139176521 7.5545e-09 au
q 1.88179795259431 7.6539e-08 au
i 5.034530911066226 4.2249e-06 deg
node 322.7564874327255 4.5795e-05 deg
peri 306.1105531816219 4.8791e-05 deg
M 270.5223892618816 1.9263e-05 deg
tp 2459301.611174445212
(2021-Mar-28.11117445)
6.5737e-05 TDB
period 1211.476501284098
3.32
6.1726e-06
1.69e-08
d
yr
n .2971580543398242 1.514e-09 deg/d
Q 2.566300325758732 8.717e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      8359 days (22.89 yr)  
   first obs. used      1997-03-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:27  

Additional Information
 Earth MOID = .871014 au 
 Jupiter MOID = 2.5401 au 
 T_jup = 3.627 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456868.5 (2014-Jul-30.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .154113486736636 3.3705e-08  
q 1.881329105287246 7.6397e-08 au
tp 2456878.692404580679
(2014-Aug-09.19240458)
5.9131e-05 TDB
node 322.8065971440346 4.5769e-05 deg
peri 306.1304368252347 4.8766e-05 deg
i 5.03626987965924 4.226e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      8359 days (22.89 yr)  
   first obs. used      1997-03-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:27  

Additional Information
 Jupiter MOID = 2.5401 au 
 T_jup = 3.627 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.136016663749474E-15 -2.566371887825326E-15 -2.975465884324359E-13 -1.134029370241313E-15 -5.968927005116382E-14 -6.490215524299587E-16
q -2.566371887825326E-15 5.83653543569361E-15 8.324020448082441E-13 2.79554769442217E-15 1.783808949265406E-13 1.623061656800584E-15
tp -2.975465884324359E-13 8.324020448082441E-13 3.496499916199964E-9 -5.627436932063291E-12 1.009624979460596E-9 1.629383694159575E-12
node -1.134029370241313E-15 2.79554769442217E-15 -5.627436932063291E-12 2.094844891671531E-9 -2.087584739341517E-9 3.648247343657469E-11
peri -5.968927005116382E-14 1.783808949265406E-13 1.009624979460596E-9 -2.087584739341517E-9 2.378098379404269E-9 -3.588230086390278E-11
i -6.490215524299587E-16 1.623061656800584E-15 1.629383694159575E-12 3.648247343657469E-11 -3.588230086390278E-11 1.785922526087585E-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 15.5   n/a MPO412529  
diameter diameter 2.148 km 0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.290   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52836 (1998 RK55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RK55 = 2000 AQ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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