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52871 (1998 SR27)
Classification: Main-belt Asteroid          SPK-ID: 2052871
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2663383091920137 4.6998e-08  
a 2.367733897898529 8.128e-09 au
q 1.737115654915619 1.1162e-07 au
i 23.07744085770093 6.5358e-06 deg
node 269.5346169845202 1.1121e-05 deg
peri 137.1143283875219 1.8282e-05 deg
M 15.9466581803717 1.0185e-05 deg
tp 2459141.552560014550
(2020-Oct-19.05256001)
3.7709e-05 TDB
period 1330.753952002457
3.64
6.8523e-06
1.876e-08
d
yr
n .2705233371340274 1.393e-09 deg/d
Q 2.99835214088144 1.0293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      16709 days (45.75 yr)  
   first obs. used      1975-06-08  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:45  

Additional Information
 Earth MOID = .798802 au 
 Jupiter MOID = 2.47118 au 
 T_jup = 3.394 
[ 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 15.28   n/a MPCxxxxx  
diameter diameter 2.334 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.317   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52871 (1998 SR27)          Discovered 1998-Sep-25 by CSS at Catalina
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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