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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379598701601958 4.5977e-08  
a 2.313181904980139 9.3006e-09 au
q 1.994055629712164 1.0696e-07 au
i 7.499033711214642 3.9433e-06 deg
node 100.5735749588282 3.6913e-05 deg
peri 250.1774621522067 4.0024e-05 deg
M 139.7100274212697 1.6862e-05 deg
tp 2458501.801360390802
(2019-Jan-18.30136039)
5.9522e-05 TDB
period 1285.029525604253
3.52
7.75e-06
2.122e-08
d
yr
n .2801492050003436 1.6896e-09 deg/d
Q 2.632308180248113 1.0584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      7772 days (21.28 yr)  
   first obs. used      1998-10-23  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58036  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:39:39  

Additional Information
 Earth MOID = 1.00218 au 
 Jupiter MOID = 2.78104 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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