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173903 (2001 UH179)
Classification: Main-belt Asteroid          SPK-ID: 2173903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07872826912542318 6.0876e-08  
a 3.124030534880889 2.9129e-08 au
q 2.878081018174746 1.9707e-07 au
i 10.54693107131155 7.3381e-06 deg
node 324.1966935803742 2.2317e-05 deg
peri 35.28431951883023 4.1503e-05 deg
M 152.5912932030222 3.567e-05 deg
tp 2458145.632936291737
(2018-Jan-27.13293629)
0.00019527 TDB
period 2016.839470162375
5.52
2.8208e-05
7.723e-08
d
yr
n .178497101691002 2.4965e-09 deg/d
Q 3.369980051587031 3.1422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2001-08-22  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:32:08  

Additional Information
 Earth MOID = 1.88003 au 
 Jupiter MOID = 2.04456 au 
 T_jup = 3.184 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457438.5 (2016-Feb-20.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07764280233904543 6.0694e-08  
q 2.880683583051712 1.9599e-07 au
tp 2458147.124222821420
(2018-Jan-28.62422282)
0.00019888 TDB
node 324.2230872288645 2.232e-05 deg
peri 35.61794747543934 4.2079e-05 deg
i 10.54651783795823 7.3377e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2001-08-22  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:32:08  

Additional Information
 Jupiter MOID = 2.04456 au 
 T_jup = 3.184 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.683816507534666E-15 -1.178889480227196E-14 -6.206579146548881E-12 8.594558369521648E-15 -1.164821774668343E-12 1.641492241950458E-15
q -1.178889480227196E-14 3.841308540130404E-14 2.121404809796962E-11 -3.02609960261891E-14 3.922002409155028E-12 -5.088207496816435E-15
tp -6.206579146548881E-12 2.121404809796962E-11 3.955495455723201E-8 -3.027108418596792E-11 7.095078685016131E-9 -1.062263202620927E-11
node 8.594558369521648E-15 -3.02609960261891E-14 -3.027108418596792E-11 4.981914780879328E-10 -4.947262821158513E-10 1.020934769645071E-11
peri -1.164821774668343E-12 3.922002409155028E-12 7.095078685016131E-9 -4.947262821158513E-10 1.770630272150094E-9 -1.200375875402772E-11
i 1.641492241950458E-15 -5.088207496816435E-15 -1.062263202620927E-11 1.020934769645071E-11 -1.200375875402772E-11 5.384209538146153E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO469865  
diameter diameter 5.059 km 0.610 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.091   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173903 (2001 UH179)          Discovered 2001-Oct-26 by NEAT at Palomar
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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