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190302 (1996 XE21)
Classification: Main-belt Asteroid          SPK-ID: 2190302
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454456075084913 7.0033e-08  
a 2.546346760227841 1.2292e-08 au
q 2.175991808759224 1.8379e-07 au
i 9.194655074420327 2.9558e-06 deg
node 275.470885607486 4.0121e-05 deg
peri 65.42483008011347 4.4008e-05 deg
M 29.98521451334422 1.5934e-05 deg
tp 2459076.882657141521
(2020-Aug-15.38265714)
6.6053e-05 TDB
period 1484.139571829563
4.06
1.0746e-05
2.942e-08
d
yr
n .2425647875935364 1.7564e-09 deg/d
Q 2.916701711696458 1.4079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      8779 days (24.04 yr)  
   first obs. used      1996-12-07  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55194  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:05  

Additional Information
 Earth MOID = 1.18372 au 
 Jupiter MOID = 2.48048 au 
 T_jup = 3.410 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.76   n/a E2021B55  

190302 (1996 XE21)          Discovered 1996-Dec-07 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

Alternate Designations
 1996 XE21 = 2004 TP171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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