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101869 (1999 MM)
Classification: Apollo [NEO, PHA]          SPK-ID: 2101869
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 59 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .610728952463789 5.9314e-08  
a 1.624319304345493 4.6648e-09 au
q .6323004771358596 9.4863e-08 au
i 4.765058951975751 1.4057e-05 deg
node 110.9545366734703 4.8459e-05 deg
peri 268.7838400839808 4.8145e-05 deg
M 106.1222351092476 2.0279e-05 deg
tp 2458977.600331246343
(2020-May-08.10033125)
4.1745e-05 TDB
period 756.1457847990994
2.07
3.2573e-06
8.918e-09
d
yr
n .4760986667348129 2.0509e-09 deg/d
Q 2.616338131555126 7.5137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      3167 days (8.67 yr)  
   first obs. used      1999-06-12  
   last obs. used      2008-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .658  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:06  

Additional Information
 Earth MOID = .00172003 au 
 Jupiter MOID = 2.85477 au 
 T_jup = 4.085 
[ 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 19.2   n/a MPO445809  

101869 (1999 MM)          Discovered 1999-Jun-20 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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