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295949 (2008 XB49)
Classification: Main-belt Asteroid          SPK-ID: 2295949
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035434129953516 5.2637e-08  
a 2.4407559375617 2.4252e-08 au
q 2.188031737497892 1.3114e-07 au
i 5.571112928954756 5.4164e-06 deg
node 317.7826224568426 6.3481e-05 deg
peri 321.0303042723892 7.6075e-05 deg
M 185.7685798659099 5.0428e-05 deg
tp 2459674.576108127528
(2022-Apr-05.07610813)
0.00020226 TDB
period 1392.787814845055
3.81
2.0759e-05
5.684e-08
d
yr
n .258474403755499 3.8524e-09 deg/d
Q 2.693480137625508 2.6763e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      8453 days (23.14 yr)  
   first obs. used      1996-12-02  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:50  

Additional Information
 Earth MOID = 1.17492 au 
 Jupiter MOID = 2.43205 au 
 T_jup = 3.488 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457389.5 (2016-Jan-02.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043476682984101 5.2416e-08  
q 2.185352004462704 1.3056e-07 au
tp 2456890.189163442065
(2014-Aug-20.68916344)
0.00017378 TDB
node 317.8594984711079 6.3454e-05 deg
peri 321.1055571137931 7.5952e-05 deg
i 5.573327625702727 5.4177e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      8453 days (23.14 yr)  
   first obs. used      1996-12-02  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:50  

Additional Information
 Jupiter MOID = 2.43205 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.747488590211389E-15 -6.749030742964344E-15 -1.658860886102996E-12 -6.220284850777464E-15 -3.964596032226369E-13 9.214482783446777E-16
q -6.749030742964344E-15 1.704663872415256E-14 6.308233965187732E-12 1.659648519412131E-14 1.523108884809422E-12 -2.116023913282096E-15
tp -1.658860886102996E-12 6.308233965187732E-12 3.019876490082104E-8 1.907014034897697E-11 7.29789196719401E-9 -6.023665803534063E-12
node -6.220284850777464E-15 1.659648519412131E-14 1.907014034897697E-11 4.026397116964969E-9 -4.002476551503626E-9 -1.893824673037409E-11
peri -3.964596032226369E-13 1.523108884809422E-12 7.29789196719401E-9 -4.002476551503626E-9 5.768769454766064E-9 1.737645128853602E-11
i 9.214482783446777E-16 -2.116023913282096E-15 -6.023665803534063E-12 -1.893824673037409E-11 1.737645128853602E-11 2.935097053567368E-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 16.8   n/a MPO503288  

295949 (2008 XB49)          Discovered 2008-Dec-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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