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90989 (1997 YP)
Classification: Main-belt Asteroid          SPK-ID: 2090989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766169744730749 5.0012e-08  
a 2.458976086851945 1.104e-08 au
q 2.024679170090513 1.2592e-07 au
i 2.23283883219653 3.4147e-06 deg
node 110.871967075014 0.00016962 deg
peri 325.8999091973061 0.00017075 deg
M 309.1141539754129 2.0145e-05 deg
tp 2459199.578510882442
(2020-Dec-16.07851088)
7.9161e-05 TDB
period 1408.412545269473
3.86
9.4851e-06
2.597e-08
d
yr
n .2556069251222985 1.7214e-09 deg/d
Q 2.893273003613376 1.299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      7455 days (20.41 yr)  
   first obs. used      1997-12-20  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56821  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:40:17  

Additional Information
 Earth MOID = 1.04049 au 
 Jupiter MOID = 2.35976 au 
 T_jup = 3.468 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO449559  

90989 (1997 YP)          Discovered 1997-Dec-20 by Kobayashi, T. at Oizumi
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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