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JPL Small-Body Database Browser
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52840 (1998 RF56)
Classification: Main-belt Asteroid          SPK-ID: 2052840
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07005205285605899 4.4199e-08  
a 2.262019489980561 7.8515e-09 au
q 2.103560381107007 1.0063e-07 au
i 2.231832662072379 3.3021e-06 deg
node 259.3762526202533 0.00011871 deg
peri 116.9138298258696 0.0001212 deg
M 122.2800721626918 2.4925e-05 deg
tp 2458578.418685597556
(2019-Apr-04.91868560)
8.547e-05 TDB
period 1242.633165792654
3.40
6.4698e-06
1.771e-08
d
yr
n .2897073809955509 1.5084e-09 deg/d
Q 2.420478598854115 8.4016e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1998-08-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49863  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:46  

Additional Information
 Earth MOID = 1.10565 au 
 Jupiter MOID = 2.85697 au 
 T_jup = 3.615 
[ 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 15.4   n/a MPO502509  
diameter diameter 2.032 km 0.365 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.356   0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52840 (1998 RF56)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RF56 = 2000 CZ52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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