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101872 (1999 NO4)
Classification: Main-belt Asteroid          SPK-ID: 2101872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286451123952404 3.3316e-08  
a 2.269125292672665 8.6648e-09 au
q 1.977213414357907 7.5405e-08 au
i 5.220046916504486 3.7758e-06 deg
node 94.32271850369001 5.7213e-05 deg
peri 181.9253566147409 6.1866e-05 deg
M 55.51874491682361 2.5754e-05 deg
tp 2458807.958974407548
(2019-Nov-20.45897441)
8.9003e-05 TDB
period 1248.493086742643
3.42
7.1512e-06
1.958e-08
d
yr
n .2883476118712447 1.6516e-09 deg/d
Q 2.561037170987422 9.7795e-09 au
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1999-06-18  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:04  

Additional Information
 Earth MOID = .960821 au 
 Jupiter MOID = 2.53721 au 
 T_jup = 3.597 
[ 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 16.3   n/a MPO432545  

101872 (1999 NO4)          Discovered 1999-Jul-13 by Broughton, J. at Reedy Creek
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 NO4 = 2002 HN9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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