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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835160423095986 3.6821e-08  
a 2.238274696821487 8.9119e-09 au
q 1.827515382859091 8.2005e-08 au
i .6024308152618244 5.3037e-06 deg
node 156.2818082057705 0.0004208 deg
peri 144.9981330276953 0.00042108 deg
M 139.4531113136282 1.7765e-05 deg
tp 2458726.700921209289
(2019-Aug-31.20092121)
5.9142e-05 TDB
period 1223.118414196234
3.35
7.3049e-06
2e-08
d
yr
n .2943296379333574 1.7578e-09 deg/d
Q 2.649034010783883 1.0547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      8843 days (24.21 yr)  
   first obs. used      1996-10-07  
   last obs. used      2020-12-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6025  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:09  

Additional Information
 Earth MOID = .810058 au 
 Jupiter MOID = 2.567 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. 2020-October); 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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