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JPL Small-Body Database Browser
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85846 (1998 YP20)
Classification: Main-belt Asteroid          SPK-ID: 2085846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377362016823335 5.0874e-08  
a 2.313019782982028 1.0011e-08 au
q 1.994433223657988 1.1965e-07 au
i 7.498890513908081 3.967e-06 deg
node 100.5742157056204 4.1532e-05 deg
peri 250.1552953017035 4.4644e-05 deg
M 27.69200072642628 1.7182e-05 deg
tp 2458501.663062236382
(2019-Jan-18.16306224)
6.1261e-05 TDB
period 1284.894433826423
3.52
8.3414e-06
2.284e-08
d
yr
n .2801786594466892 1.8189e-09 deg/d
Q 2.631606342306068 1.1389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1998-10-23  
   last obs. used      2018-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59479  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:35:22  

Additional Information
 Earth MOID = 1.00166 au 
 Jupiter MOID = 2.77853 au 
 T_jup = 3.559 
[ 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 15.9   n/a MPO453289  

85846 (1998 YP20)          Discovered 1998-Dec-25 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 YP20 = 2001 QH147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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