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52849 (1998 RU72)
Classification: Main-belt Asteroid          SPK-ID: 2052849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1195289747827066 2.8908e-08  
a 2.286765004625049 7.5982e-09 au
q 2.013430328053245 6.7947e-08 au
i 2.362937270475968 4.2199e-06 deg
node 27.55040155155233 7.8202e-05 deg
peri 76.44939493993351 8.0829e-05 deg
M 13.13484592468165 1.8532e-05 deg
tp 2458954.415676674750
(2020-Apr-14.91567667)
6.504e-05 TDB
period 1263.079635057992
3.46
6.2952e-06
1.724e-08
d
yr
n .2850176584340791 1.4205e-09 deg/d
Q 2.560099681196852 8.5064e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1227  
   data-arc span      7806 days (21.37 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:49  

Additional Information
 Earth MOID = 1.03185 au 
 Jupiter MOID = 2.5498 au 
 T_jup = 3.591 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456975.5 (2014-Nov-14.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187118395227292 2.887e-08  
q 2.015353260899532 6.7806e-08 au
tp 2456427.818271463916
(2013-May-15.31827146)
6.8055e-05 TDB
node 27.5825166201637 7.812e-05 deg
peri 76.36612493168496 8.0798e-05 deg
i 2.364844438589087 4.2207e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1227  
   data-arc span      7806 days (21.37 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:49  

Additional Information
 Jupiter MOID = 2.5498 au 
 T_jup = 3.591 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.334854532670775E-16 -1.948514802288021E-15 3.642738710356377E-15 -1.681581067568923E-16 -2.240413186280933E-15 -7.952876516606105E-16
q -1.948514802288021E-15 4.597648508280355E-15 -1.311657064470458E-13 6.675854961945897E-17 -2.661260412048239E-14 1.952334215070865E-15
tp 3.642738710356377E-15 -1.311657064470458E-13 4.631549203080062E-9 -6.01379203900683E-12 1.410168755815913E-9 -6.22034038029554E-13
node -1.681581067568923E-16 6.675854961945897E-17 -6.01379203900683E-12 6.102708642620857E-9 -6.09891883445235E-9 -2.547966757715022E-11
peri -2.240413186280933E-15 -2.661260412048239E-14 1.410168755815913E-9 -6.09891883445235E-9 6.528396974337271E-9 2.527320496140579E-11
i -7.952876516606105E-16 1.952334215070865E-15 -6.22034038029554E-13 -2.547966757715022E-11 2.527320496140579E-11 1.78143374013723E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO502509  
diameter diameter 1.831 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52849 (1998 RU72)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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