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22790 (1999 KP4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2022790
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06277117594619963 1.3101e-08  
a 1.894871197602065 5.4313e-09 au
q 1.775927904262 2.4619e-08 au
i 26.29710063737939 6.4461e-07 deg
node 131.8276239122915 1.7479e-06 deg
peri 239.635286561656 1.2307e-05 deg
M 19.44160527470308 1.1477e-05 deg
tp 2459149.048553477088
(2020-Oct-26.54855348)
3.0336e-05 TDB
period 952.7258930799002
2.61
4.0962e-06
1.121e-08
d
yr
n .3778631426046575 1.6246e-09 deg/d
Q 2.01381449094213 5.7722e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1936  
   data-arc span      10847 days (29.70 yr)  
   first obs. used      1991-07-09  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:21:36  

Additional Information
 Earth MOID = .80589 au 
 Jupiter MOID = 3.23001 au 
 T_jup = 3.826 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.37   n/a MPCxxxxx  
diameter diameter 3.813 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.305   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22790 (1999 KP4)          Discovered 1999-May-20 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 KP4 = 1991 ND = 1998 FV12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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