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70991 (1999 XG33)
Classification: Main-belt Asteroid          SPK-ID: 2070991
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2511331228382767 4.4738e-08  
a 2.567621363682921 1.0726e-08 au
q 1.922806592354955 1.1928e-07 au
i 5.75898550011029 3.6574e-06 deg
node 280.2845148827483 3.7098e-05 deg
peri 198.1001957205208 3.8226e-05 deg
M 349.3802116004322 1.3141e-05 deg
tp 2459044.831074753971
(2020-Jul-14.33107475)
5.5071e-05 TDB
period 1502.778239167088
4.11
9.4164e-06
2.578e-08
d
yr
n .2395563035298737 1.5011e-09 deg/d
Q 3.212436135010888 1.3419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1588  
   data-arc span      7856 days (21.51 yr)  
   first obs. used      1998-08-03  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4978  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:18:50  

Additional Information
 Earth MOID = .939969 au 
 Jupiter MOID = 1.90514 au 
 T_jup = 3.380 
[ 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 14.0   n/a MPO351343  
diameter diameter 4.253 km 0.534 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70991 (1999 XG33)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XG33 = 1998 RE22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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