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48977 (1998 QO40)
Classification: Main-belt Asteroid          SPK-ID: 2048977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07880429265519953 3.7896e-08  
a 2.284770923183579 7.3419e-09 au
q 2.10472116670293 8.5754e-08 au
i 6.932288644460139 4.4601e-06 deg
node 200.6920900305747 2.6402e-05 deg
peri 35.3396647275038 3.5463e-05 deg
M 205.48561624333 2.36e-05 deg
tp 2459541.913193802677
(2021-Nov-23.41319380)
8.2959e-05 TDB
period 1261.427868591879
3.45
6.0802e-06
1.665e-08
d
yr
n .2853908724894947 1.3756e-09 deg/d
Q 2.464820679664228 7.9205e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1498  
   data-arc span      8126 days (22.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52818  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:27:15  

Additional Information
 Earth MOID = 1.0981 au 
 Jupiter MOID = 2.52009 au 
 T_jup = 3.589 
[ show covariance matrix ]

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 14.9   n/a MPO502482  
diameter diameter 2.342 km 0.648 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.424   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48977 (1998 QO40)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QO40 = 2000 AX178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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