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100681 (1997 YD1)
Classification: Mars-crossing Asteroid          SPK-ID: 2100681
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2920746551423522 5.7473e-08  
a 2.276995448295426 1.4772e-08 au
q 1.611942787973834 1.3005e-07 au
i 22.71026348848419 6.6644e-06 deg
node 287.2765580270726 1.5684e-05 deg
peri 251.7493588535289 2.0931e-05 deg
M 144.6179191025447 2.179e-05 deg
tp 2458496.348251201063
(2019-Jan-12.84825120)
7.2137e-05 TDB
period 1254.994060859944
3.44
1.2213e-05
3.344e-08
d
yr
n .286853947144038 2.7914e-09 deg/d
Q 2.942048108617018 1.9087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      8312 days (22.76 yr)  
   first obs. used      1997-12-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:36:32  

Additional Information
 Earth MOID = .750991 au 
 Jupiter MOID = 2.4566 au 
 T_jup = 3.452 
[ 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 15.3   n/a MPO432534  

100681 (1997 YD1)          Discovered 1997-Dec-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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