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JPL Small-Body Database Browser
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20577 (1999 RM148)
Classification: Main-belt Asteroid          SPK-ID: 2020577
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05195334217846172 3.3877e-08  
a 2.777943935940451 1.4184e-08 au
q 2.633620464083954 9.6639e-08 au
i 4.531684135394121 5.404e-06 deg
node 183.7743084712157 3.9841e-05 deg
peri 246.5669427914398 6.5319e-05 deg
M .3933779403527125 5.0965e-05 deg
tp 2458598.652046056300
(2019-Apr-25.15204606)		 0.00023942 TDB
period 1691.155887224934
4.63		 1.2952e-05
3.546e-08		 d
yr
n .2128721560912603 1.6303e-09 deg/d
Q 2.922267407796948 1.4921e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1691  
   data-arc span      13923 days (38.12 yr)  
   first obs. used      1981-10-24  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47929  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:45:06  

Additional Information
 Earth MOID = 1.65134 au 
 Jupiter MOID = 2.22889 au 
 T_jup = 3.328 
[ 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 14.0   n/a MPO319342  
diameter diameter 10.794 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20577 (1999 RM148)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RM148 = 1981 UO16 = 1997 EA42 = 1998 KC40 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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