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JPL Small-Body Database Browser
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49835 (1999 XK84)
Classification: Main-belt Asteroid          SPK-ID: 2049835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .06959061832946213 3.3291e-08  
a 2.275382217014032 8.0431e-09 au
q 2.117036961596163 7.7853e-08 au
i 6.226010356256343 3.4379e-06 deg
node 254.0974422146341 3.9045e-05 deg
peri 196.2673203615221 5.1166e-05 deg
M 235.3263676360372 3.3063e-05 deg
tp 2459034.662269035914
(2020-Jul-04.16226904)
0.00011554 TDB
period 1253.660568713065
3.43
6.6473e-06
1.82e-08
d
yr
n .2871590676011731 1.5226e-09 deg/d
Q 2.433727472431901 8.6029e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1327  
   data-arc span      15510 days (42.46 yr)  
   first obs. used      1977-06-12  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50716  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:24:14  

Additional Information
 Earth MOID = 1.13416 au 
 Jupiter MOID = 2.70177 au 
 T_jup = 3.598 
[ 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 15.1   n/a MPO502488  
diameter diameter 1.976 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.596   0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49835 (1999 XK84)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XK84 = 1977 LB = 1985 US1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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