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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701016752637169 3.6587e-08  
a 2.153459951453768 6.6047e-09 au
q 1.78715280609816 7.8755e-08 au
i 3.120836283211924 3.3882e-06 deg
node 296.793277557382 6.0399e-05 deg
peri 20.71230299523632 6.0995e-05 deg
M 202.752652986879 8.3538e-06 deg
tp 2459504.678651468237
(2021-Oct-17.17865147)
2.7285e-05 TDB
period 1154.259947631551
3.16
5.3102e-06
1.454e-08
d
yr
n .3118881502721213 1.4348e-09 deg/d
Q 2.519767096809377 7.7281e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1483  
   data-arc span      8629 days (23.62 yr)  
   first obs. used      1996-09-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52849  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:06:54  

Additional Information
 Earth MOID = .77411 au 
 Jupiter MOID = 2.75806 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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