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49860 (1999 XO100)
Classification: Main-belt Asteroid          SPK-ID: 2049860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1520161700552099 3.5499e-08  
a 2.574056577322225 1.378e-08 au
q 2.182758354932278 9.5594e-08 au
i 8.073669611414944 3.9772e-06 deg
node 88.25182491575205 5.4181e-05 deg
peri 3.303303186879593 6.3684e-05 deg
M 343.6522846398582 3.4942e-05 deg
tp 2459068.998352488181
(2020-Aug-07.49835249)
0.00014676 TDB
period 1508.43138337658
4.13
1.2113e-05
3.316e-08
d
yr
n .2386585190200369 1.9164e-09 deg/d
Q 2.965354799712172 1.5874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      951  
   data-arc span      8516 days (23.32 yr)  
   first obs. used      1997-05-29  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:04:56  

Additional Information
 Earth MOID = 1.19942 au 
 Jupiter MOID = 2.22885 au 
 T_jup = 3.398 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456998.5 (2014-Dec-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501752082420918 3.5342e-08  
q 2.188488503198629 9.5071e-08 au
tp 2457558.910798688169
(2016-Jun-19.41079869)
0.0001422 TDB
node 88.3305891813267 5.4266e-05 deg
peri 2.976736228216057 6.4068e-05 deg
i 8.065813666176338 3.9725e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      951  
   data-arc span      8516 days (23.32 yr)  
   first obs. used      1997-05-29  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:04:56  

Additional Information
 Jupiter MOID = 2.22885 au 
 T_jup = 3.398 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.249084373806944E-15 -3.336497406583093E-15 -1.502736785475642E-12 -1.695158129917048E-14 -2.968559687931862E-13 -2.346220180063209E-15
q -3.336497406583093E-15 9.038581662642539E-15 4.848820528561331E-12 5.621448194328722E-14 9.833703504875633E-13 7.185398924923518E-15
tp -1.502736785475642E-12 4.848820528561331E-12 2.021953246252288E-8 1.658908095392447E-10 4.93017485284374E-9 2.083138627148721E-11
node -1.695158129917048E-14 5.621448194328722E-14 1.658908095392447E-10 2.94480474965193E-9 -2.874477579058329E-9 -9.82939647053902E-11
peri -2.968559687931862E-13 9.833703504875633E-13 4.93017485284374E-9 -2.874477579058329E-9 4.104681887994606E-9 1.024512709235509E-10
i -2.346220180063209E-15 7.185398924923518E-15 2.083138627148721E-11 -9.82939647053902E-11 1.024512709235509E-10 1.578107347917245E-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 15.1   n/a MPO359075  

49860 (1999 XO100)          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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