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152028 (2004 NB21)
Classification: Main-belt Asteroid          SPK-ID: 2152028
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 .1694976774396345 3.4742e-08  
a 2.784207070163088 1.9125e-08 au
q 2.312290438259435 9.574e-08 au
i 10.17676717968906 4.0412e-06 deg
node 147.4482607638351 2.0666e-05 deg
peri 169.9906845021833 2.3832e-05 deg
M 179.9004228845128 1.4543e-05 deg
tp 2458352.530155232736
(2018-Aug-22.03015523)
6.4292e-05 TDB
period 1696.878413188516
4.65
1.7484e-05
4.787e-08
d
yr
n .2121542693937291 2.1859e-09 deg/d
Q 3.25612370206674 2.2366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      8399 days (23.00 yr)  
   first obs. used      1998-03-21  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:41:13  

Additional Information
 Earth MOID = 1.29798 au 
 Jupiter MOID = 2.07535 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457677.5 (2016-Oct-16.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706459283150023 3.4869e-08  
q 2.30919402140709 9.6294e-08 au
tp 2458350.091835841280
(2018-Aug-19.59183584)
6.3717e-05 TDB
node 147.5557696653741 2.0627e-05 deg
peri 169.4672688255303 2.374e-05 deg
i 10.18658794381577 4.0456e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      8399 days (23.00 yr)  
   first obs. used      1998-03-21  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:41:13  

Additional Information
 Jupiter MOID = 2.07535 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.215839513728662E-15 -3.312564220990315E-15 1.970136394761628E-13 -3.775862027415801E-15 3.646719132529044E-14 -7.425689633973521E-17
q -3.312564220990315E-15 9.272497340697689E-15 -9.077955850634052E-14 1.021542176128183E-14 -3.662002652220946E-14 3.962353267337107E-16
tp 1.970136394761628E-13 -9.077955850634052E-14 4.059873697744364E-9 -3.305698197609413E-12 7.598133514277868E-10 -1.83986621502698E-13
node -3.775862027415801E-15 1.021542176128183E-14 -3.305698197609413E-12 4.254785677419438E-10 -4.191871920579662E-10 -2.441902786465401E-13
peri 3.646719132529044E-14 -3.662002652220946E-14 7.598133514277868E-10 -4.191871920579662E-10 5.635954631379334E-10 1.348979567740503E-13
i -7.425689633973521E-17 3.962353267337107E-16 -1.83986621502698E-13 -2.441902786465401E-13 1.348979567740503E-13 1.636659444336315E-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 15.49   n/a MPCxxxxx  

152028 (2004 NB21)          Discovered 2004-Jul-14 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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