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295878 (2008 WB44)
Classification: Main-belt Asteroid          SPK-ID: 2295878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08873642664218431 7.2671e-08  
a 2.757610121864259 3.3014e-08 au
q 2.512909653577707 1.9859e-07 au
i 3.431692303439689 8.3079e-06 deg
node 258.6349836308968 0.00014309 deg
peri 240.5972222334561 0.00015215 deg
M 121.9234059967309 5.1144e-05 deg
tp 2458434.022963678814
(2018-Nov-11.52296368)
0.00023546 TDB
period 1672.621687431329
4.58
3.0037e-05
8.224e-08
d
yr
n .2152309770375258 3.8651e-09 deg/d
Q 3.002310590150812 3.5943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      7041 days (19.28 yr)  
   first obs. used      1999-12-31  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:37:46  

Additional Information
 Earth MOID = 1.52844 au 
 Jupiter MOID = 2.03013 au 
 T_jup = 3.335 
[ 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 17.1   n/a MPO427597  

295878 (2008 WB44)          Discovered 2008-Nov-17 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2036-Oct-05 01:44 < 00:01 David 0.0404048443170728 0.0403992551408197 0.0404104381967732 6.8832466180674 6.88324656374784 2464971.572353436 0.902922585041172 763.703420897545 71.4900028060697 -69.2465700108059 79088.1807521771 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 13:37:48 2019-Jul-13 13:37
2144-Feb-09 03:43 00:04 Psych 0.0391006804116507 0.0390706185435566 0.0391308578996687 3.86253568616293 3.86253560605116 2504178.654646278 3.929721859461 3679.46308629533 113.761138064556 65.9876284602169 46926.6244514253 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 13:37:48 2019-Jul-13 13:37

Alternate Designations
 2008 WB44 = 2006 KM129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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