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190985 (2001 XB177)
Classification: Main-belt Asteroid          SPK-ID: 2190985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1509602491282863 4.5591e-08  
a 2.463052234702734 1.2566e-08 au
q 2.091229255736027 1.1217e-07 au
i 6.593698951379821 3.6908e-06 deg
node 123.7775501108243 4.6057e-05 deg
peri 254.4259066756281 4.8319e-05 deg
M 33.43521902235759 1.417e-05 deg
tp 2459069.367442385792
(2020-Aug-07.86744239)
5.5702e-05 TDB
period 1411.916001194666
3.87
1.0805e-05
2.958e-08
d
yr
n .254972675212543 1.9512e-09 deg/d
Q 2.834875213669442 1.4463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      6972 days (19.09 yr)  
   first obs. used      2001-12-14  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:03:53  

Additional Information
 Earth MOID = 1.10279 au 
 Jupiter MOID = 2.65064 au 
 T_jup = 3.464 
[ 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 16.4   n/a MPO436945  

190985 (2001 XB177)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 2001 XB177 = 2004 PV3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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