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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2920746543238142 5.7486e-08  
a 2.276995447292215 1.479e-08 au
q 1.611942789127442 1.3007e-07 au
i 22.7102625241162 6.9671e-06 deg
node 287.2765588126574 1.5738e-05 deg
peri 251.7493616592521 2.1163e-05 deg
M 144.6179170274639 2.1863e-05 deg
tp 2458496.348258768174
(2019-Jan-12.84825877)
7.2425e-05 TDB
period 1254.994060030546
3.44
1.2228e-05
3.348e-08
d
yr
n .2868539473336135 2.7949e-09 deg/d
Q 2.942048105456987 1.911e-08 au
  Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      8264 days (22.63 yr)  
   first obs. used      1997-12-19  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49395  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:03:37  

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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