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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456988.5 (2014-Nov-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561084359953021 4.0301e-08  
q 2.63148489989314 1.2597e-07 au
tp 2457638.567148203292
(2016-Sep-07.06714820)
0.00012552 TDB
node 85.24953645230953 5.5417e-05 deg
peri 222.9491642223627 5.9351e-05 deg
i 6.495126142485375 4.9364e-06 deg
  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
 Jupiter MOID = 1.65561 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.62419256672413E-15 -4.940253899160648E-15 1.244812970083154E-12 6.610244250747827E-15 2.06813121808505E-13 -2.526561139984595E-16
q -4.940253899160648E-15 1.586864044577548E-14 -2.395019404036378E-12 -3.789760436757208E-14 -4.296057650723811E-13 2.476957597663462E-15
tp 1.244812970083154E-12 -2.395019404036378E-12 1.575648233194026E-8 -2.089709399252135E-11 2.731953885389588E-9 1.597813151398938E-12
node 6.610244250747827E-15 -3.789760436757208E-14 -2.089709399252135E-11 3.070998158095082E-9 -3.054054914707257E-9 -8.373934000830991E-11
peri 2.06813121808505E-13 -4.296057650723811E-13 2.731953885389588E-9 -3.054054914707257E-9 3.522600150499133E-9 8.342750217907175E-11
i -2.526561139984595E-16 2.476957597663462E-15 1.597813151398938E-12 -8.373934000830991E-11 8.342750217907175E-11 2.43680603716604E-11

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

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