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JPL Small-Body Database Browser
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172968 (2005 NQ80)
Classification: Main-belt Asteroid          SPK-ID: 2172968
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577871861746949 4.0364e-08  
a 3.116892025191687 3.4697e-08 au
q 2.625086402926344 1.2641e-07 au
i 6.495753457335979 4.9369e-06 deg
node 85.22668956959205 5.543e-05 deg
peri 223.1020145759379 5.9273e-05 deg
M 243.6208145542305 2.4168e-05 deg
tp 2459650.261352226804
(2022-Mar-11.76135223)
0.00014112 TDB
period 2009.930606625951
5.50
3.3562e-05
9.189e-08
d
yr
n .1791106612403541 2.9908e-09 deg/d
Q 3.60869764745703 4.0172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      9786 days (26.79 yr)  
   first obs. used      1993-04-17  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:56:56  

Additional Information
 Earth MOID = 1.61494 au 
 Jupiter MOID = 1.65561 au 
 T_jup = 3.188 
[ 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 15.3   n/a MPO433110  
diameter diameter 4.999 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172968 (2005 NQ80)          Discovered 2005-Jul-14 by Broughton, J. at Reedy Creek
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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Alternate Designations
 2005 NQ80 = 2001 XT160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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