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91420 (1999 NK60)
Classification: Main-belt Asteroid          SPK-ID: 2091420
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219722839264349 3.4077e-08  
a 2.761358242045258 1.4691e-08 au
q 2.148413246319387 9.7278e-08 au
i 13.66373974428345 3.9279e-06 deg
node 157.2036936207696 1.5923e-05 deg
peri 97.56321869177624 1.8175e-05 deg
M 305.8608329353675 1.0593e-05 deg
tp 2459648.552857590444
(2022-Mar-10.05285759)
5.0472e-05 TDB
period 1676.032965638976
4.59
1.3375e-05
3.662e-08
d
yr
n .2147929112257959 1.7141e-09 deg/d
Q 3.374303237771129 1.7952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      7968 days (21.82 yr)  
   first obs. used      1999-07-13  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:40:32  

Additional Information
 Earth MOID = 1.18531 au 
 Jupiter MOID = 1.90736 au 
 T_jup = 3.265 
[ 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 15.12   n/a MPCxxxxx  

91420 (1999 NK60)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 NK60 = 2003 EK29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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