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74577 (1999 NN26)
Classification: Main-belt Asteroid          SPK-ID: 2074577
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1699025803044173 3.7007e-08  
a 2.153594838542571 7.0928e-09 au
q 1.787693518543914 8.0016e-08 au
i 3.120486103549717 3.4244e-06 deg
node 296.7947188332354 6.7296e-05 deg
peri 20.67056984600621 6.8072e-05 deg
M 78.07008995427402 9.1058e-06 deg
tp 2458350.162097903289
(2018-Aug-19.66209790)
2.9302e-05 TDB
period 1154.368399057828
3.16
5.7028e-06
1.561e-08
d
yr
n .3118588487815716 1.5406e-09 deg/d
Q 2.51949615854123 8.2978e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1323  
   data-arc span      8449 days (23.13 yr)  
   first obs. used      1996-09-05  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54142  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:55:23  

Additional Information
 Earth MOID = .773788 au 
 Jupiter MOID = 2.75594 au 
 T_jup = 3.682 
[ 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 15.4   n/a MPO453159  
diameter diameter 2.145 km 0.484 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74577 (1999 NN26)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NN26 = 1996 RY23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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