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49834 (1999 XC84)
Classification: Main-belt Asteroid          SPK-ID: 2049834
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179362105989426 3.399e-08  
a 2.308307189230622 8.9169e-09 au
q 2.036074186434466 7.7954e-08 au
i 12.58676249885867 3.8687e-06 deg
node 102.0881800451755 2.2392e-05 deg
peri 186.8017249721134 3.0627e-05 deg
M 105.6332418404636 2.076e-05 deg
tp 2458624.630625965461
(2019-May-21.13062597)
7.379e-05 TDB
period 1280.96962939749
3.51
7.4225e-06
2.032e-08
d
yr
n .2810371079362183 1.6285e-09 deg/d
Q 2.580540192026778 9.9686e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1257  
   data-arc span      8351 days (22.86 yr)  
   first obs. used      1997-01-11  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:47:08  

Additional Information
 Earth MOID = 1.02014 au 
 Jupiter MOID = 2.57209 au 
 T_jup = 3.545 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456693.5 (2014-Feb-05.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174489014654732 3.3913e-08  
q 2.038490479370328 7.774e-08 au
tp 2456061.455484182937
(2012-May-13.95548418)
7.5641e-05 TDB
node 102.1249215306663 2.2387e-05 deg
peri 186.7142092554682 3.0737e-05 deg
i 12.58567360759691 3.8691e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1257  
   data-arc span      8351 days (22.86 yr)  
   first obs. used      1997-01-11  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:47:08  

Additional Information
 Jupiter MOID = 2.57209 au 
 T_jup = 3.545 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.150071198057741E-15 -2.622800866097265E-15 -3.321599485678972E-13 2.862005657759192E-15 -7.821897543999461E-14 -2.219547613808645E-15
q -2.622800866097265E-15 6.04346874286415E-15 6.624971232802079E-13 -7.031791365037383E-15 1.600187725586823E-13 5.144626844182703E-15
tp -3.321599485678972E-13 6.624971232802079E-13 5.721579555235257E-9 1.183991451175016E-11 1.618279994163124E-9 6.494815842427846E-12
node 2.862005657759192E-15 -7.031791365037383E-15 1.183991451175016E-11 5.01196168473235E-10 -4.851467029981902E-10 -1.438409926057488E-11
peri -7.821897543999461E-14 1.600187725586823E-13 1.618279994163124E-9 -4.851467029981902E-10 9.447383492356939E-10 1.592706701582499E-11
i -2.219547613808645E-15 5.144626844182703E-15 6.494815842427846E-12 -1.438409926057488E-11 1.592706701582499E-11 1.497000391187173E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO337656  
diameter diameter 2.946 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49834 (1999 XC84)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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