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74553 (1999 KR1)
Classification: Main-belt Asteroid          SPK-ID: 2074553
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 .0733501515995751 4.3571e-08  
a 3.129710066467167 1.9757e-08 au
q 2.900145358629084 1.36e-07 au
i 19.18700059779109 4.6435e-06 deg
node 34.97151857839739 1.2931e-05 deg
peri 309.6375005004672 3.2266e-05 deg
M 198.615720497743 3.1219e-05 deg
tp 2460107.094988267631
(2023-Jun-11.59498827)
0.0001774 TDB
period 2022.341933073988
5.54
1.915e-05
5.243e-08
d
yr
n .1780114401587841 1.6856e-09 deg/d
Q 3.35927477430525 2.1206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1667  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1999-03-25  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47382  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:20:18  

Additional Information
 Earth MOID = 1.93029 au 
 Jupiter MOID = 1.99747 au 
 T_jup = 3.124 
[ 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 13.28   n/a MPCxxxxx  
diameter diameter 10.090 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74553 (1999 KR1)          Discovered 1999-May-16 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 KR1 = 2001 SJ54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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