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101845 (1999 JL74)
Classification: Main-belt Asteroid          SPK-ID: 2101845
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09672956121637977 7.3503e-08  
a 2.677538129337111 1.7191e-08 au
q 2.418541040946205 2.0245e-07 au
i 14.59513012437121 5.078e-06 deg
node 67.17687228240973 1.9392e-05 deg
peri 106.4289417632559 3.4674e-05 deg
M 17.13081681615881 2.6065e-05 deg
tp 2459124.348669902908
(2020-Oct-01.84866990)
0.00011579 TDB
period 1600.301907909856
4.38
1.5412e-05
4.22e-08
d
yr
n .2249575522097538 2.1664e-09 deg/d
Q 2.936535217728016 1.8853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      796  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1999-05-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57196  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:57  

Additional Information
 Earth MOID = 1.46518 au 
 Jupiter MOID = 2.14241 au 
 T_jup = 3.325 
[ 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 15.12   n/a E2021B55  

101845 (1999 JL74)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 JL74 = 2001 WS30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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