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59561 (1999 JQ42)
Classification: Main-belt Asteroid          SPK-ID: 2059561
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027561433671387 3.0852e-08  
a 2.553646264042018 1.3495e-08 au
q 2.035878796020957 7.8833e-08 au
i 2.458010117250419 7.2019e-06 deg
node 237.7771281528508 0.00022166 deg
peri 35.93126039357433 0.00022427 deg
M 28.21372055743726 3.3727e-05 deg
tp 2458883.685328140517
(2020-Feb-04.18532814)
0.0001394 TDB
period 1490.525922797104
4.08
1.1816e-05
3.235e-08
d
yr
n .2415254874094562 1.9146e-09 deg/d
Q 3.07141373206308 1.6232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      8641 days (23.66 yr)  
   first obs. used      1996-10-12  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62248  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:38:54  

Additional Information
 Earth MOID = 1.0202 au 
 Jupiter MOID = 2.0465 au 
 T_jup = 3.408 
[ 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 16.2   n/a MPO432149  

59561 (1999 JQ42)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JQ42 = 1996 TD48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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