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101878 (1999 NR23)
Classification: Main-belt Asteroid          SPK-ID: 2101878
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835896709954202 3.6886e-08  
a 2.237856091029408 8.9399e-09 au
q 1.827008827542222 8.2185e-08 au
i .6024372222954543 5.3697e-06 deg
node 156.2909094517802 0.00042327 deg
peri 144.9327872128606 0.00042356 deg
M 80.63880802967712 1.7669e-05 deg
tp 2458726.602380137667
(2019-Aug-31.10238014)
5.9343e-05 TDB
period 1222.775305832289
3.35
7.3272e-06
2.006e-08
d
yr
n .2944122262552267 1.7642e-09 deg/d
Q 2.648703354516594 1.0581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8309 days (22.75 yr)  
   first obs. used      1996-10-07  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:03  

Additional Information
 Earth MOID = .811534 au 
 Jupiter MOID = 2.56773 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 16.7   n/a MPO436476  
rotation period rot_per 5.413 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]

101878 (1999 NR23)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 NR23 = 2002 GL60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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