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175993 (2000 QB145)
Classification: Main-belt Asteroid          SPK-ID: 2175993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2660738632186768 6.4881e-08  
a 3.080737747849496 2.551e-08 au
q 2.261033953715575 2.0779e-07 au
i 18.15012671316764 6.0673e-06 deg
node 160.7728844434511 1.6886e-05 deg
peri 221.2985735408935 1.9355e-05 deg
M 255.5246912218678 1.4476e-05 deg
tp 2459773.680866173270
(2022-Jul-13.18086617)
8.4737e-05 TDB
period 1975.061038207408
5.41
2.4532e-05
6.716e-08
d
yr
n .1822728477934742 2.264e-09 deg/d
Q 3.900441541983417 3.2298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      8500 days (23.27 yr)  
   first obs. used      1997-03-03  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:07:41  

Additional Information
 Earth MOID = 1.29034 au 
 Jupiter MOID = 1.69169 au 
 T_jup = 3.099 
[ 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 15.29   n/a MPCxxxxx  

175993 (2000 QB145)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 2000 QB145 = 1997 ER1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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