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101888 (1999 NM42)
Classification: Main-belt Asteroid          SPK-ID: 2101888
[ 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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2498556472802168 4.4881e-08  
a 2.386955424188474 1.0426e-08 au
q 1.790561131648838 1.0664e-07 au
i 4.876823598815751 4.8602e-06 deg
node 307.3963710772563 5.4829e-05 deg
peri 43.83363348253995 5.5491e-05 deg
M 207.4434458743081 1.1675e-05 deg
tp 2459571.312217063700
(2021-Dec-22.81221706)		 4.6448e-05 TDB
period 1346.991607935941
3.69		 8.8255e-06
2.416e-08		 d
yr
n .2672622441587776 1.7511e-09 deg/d
Q 2.983349716728109 1.3031e-08 au
   Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      7613 days (20.84 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:58  

Additional Information
 Earth MOID = .788352 au 
 Jupiter MOID = 2.46611 au 
 T_jup = 3.487 
[ 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 16.1   n/a MPO469026  

101888 (1999 NM42)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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