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101996 (1999 RE72)
Classification: Main-belt Asteroid          SPK-ID: 2101996
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132602509405278 4.0979e-08  
a 2.239359273460754 8.3241e-09 au
q 1.942414614339878 9.1407e-08 au
i 7.148275562891977 4.1983e-06 deg
node 141.422057871152 2.7394e-05 deg
peri 201.5465589040754 2.9995e-05 deg
M 127.8399041455779 1.2408e-05 deg
tp 2458765.841651267843
(2019-Oct-09.34165127)
4.2035e-05 TDB
period 1224.007531837541
3.35
6.8248e-06
1.869e-08
d
yr
n .2941158372281827 1.6399e-09 deg/d
Q 2.53630393258163 9.4279e-09 au
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      7857 days (21.51 yr)  
   first obs. used      1999-09-07  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:48  

Additional Information
 Earth MOID = .93385 au 
 Jupiter MOID = 2.83544 au 
 T_jup = 3.614 
[ 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 16.0   n/a MPO436477  

101996 (1999 RE72)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RE72 = 2001 DT90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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