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175785 (1999 NR31)
Classification: Main-belt Asteroid          SPK-ID: 2175785
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1631786798458182 4.2808e-08  
a 2.195028420654487 1.0015e-08 au
q 1.836846580748037 9.5692e-08 au
i 5.138939631445979 4.6045e-06 deg
node 297.3914636286014 5.2924e-05 deg
peri 356.6737147086517 5.5534e-05 deg
M 215.1220392138514 1.9684e-05 deg
tp 2459678.533653774387
(2022-Apr-09.03365377)
6.7147e-05 TDB
period 1187.841921745441
3.25
8.1291e-06
2.226e-08
d
yr
n .3030706303672193 2.0741e-09 deg/d
Q 2.553210260560938 1.1649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      9520 days (26.06 yr)  
   first obs. used      1995-02-25  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60138  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:04:32  

Additional Information
 Earth MOID = .81884 au 
 Jupiter MOID = 2.62893 au 
 T_jup = 3.647 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.87   n/a MPCxxxxx  

175785 (1999 NR31)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 NR31 = 2002 JU110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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