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JPL Small-Body Database Browser
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46857 (1998 QN45)
Classification: Main-belt Asteroid          SPK-ID: 2046857
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108821305574263 3.5182e-08  
a 2.375111893623666 8.9508e-09 au
q 2.111754426546391 8.2417e-08 au
i 12.04447498914958 4.1336e-06 deg
node 188.3691112769654 1.6945e-05 deg
peri 346.9358720286477 2.4624e-05 deg
M 147.099166739381 1.7439e-05 deg
tp 2458454.198679363879
(2018-Dec-01.69867936)
6.434e-05 TDB
period 1336.978854390424
3.66
7.5578e-06
2.069e-08
d
yr
n .2692637948744049 1.5221e-09 deg/d
Q 2.638469360700942 9.9433e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1507  
   data-arc span      7677 days (21.02 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53133  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:36:12  

Additional Information
 Earth MOID = 1.1168 au 
 Jupiter MOID = 2.32624 au 
 T_jup = 3.504 
[ 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 14.6   n/a MPO493183  

46857 (1998 QN45)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QN45 = 1999 YS3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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