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21196 (1994 PU5)
Classification: Main-belt Asteroid          SPK-ID: 2021196
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06888284477825359 5.4846e-08  
a 2.966378939128851 1.7642e-08 au
q 2.762046319111358 1.6178e-07 au
i 9.866498889229225 4.654e-06 deg
node 149.7575517531471 2.9606e-05 deg
peri 187.9076514207418 4.8633e-05 deg
M 88.10387671235752 3.8078e-05 deg
tp 2458939.800129815608
(2020-Mar-31.30012982)
0.00019855 TDB
period 1866.114856706646
5.11
1.6648e-05
4.558e-08
d
yr
n .1929141706932952 1.721e-09 deg/d
Q 3.170711559146345 1.8858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1112  
   data-arc span      10593 days (29.00 yr)  
   first obs. used      1992-03-06  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54928  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:21  

Additional Information
 Earth MOID = 1.75188 au 
 Jupiter MOID = 2.17677 au 
 T_jup = 3.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457390.5 (2016-Jan-03.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07204313025244387 5.517e-08  
q 2.752298462782304 1.6368e-07 au
tp 2457074.857096648267
(2015-Feb-21.35709665)
0.00019557 TDB
node 149.9464903700502 2.9617e-05 deg
peri 188.0547177776392 4.7313e-05 deg
i 9.865033350624174 4.6609e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1112  
   data-arc span      10593 days (29.00 yr)  
   first obs. used      1992-03-06  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54928  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:21  

Additional Information
 Jupiter MOID = 2.17677 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.043692375929165E-15 -8.984664023085952E-15 5.557722398271195E-12 1.241680208798599E-14 9.517285535224794E-13 -6.651371780345775E-15
q -8.984664023085952E-15 2.679168290142294E-14 -1.776772985567449E-11 -3.589413127939302E-14 -3.068736160076777E-12 2.116513834979268E-14
tp 5.557722398271195E-12 -1.776772985567449E-11 3.824816954993455E-8 3.264148673464939E-11 7.247711083127815E-9 -2.658621653707402E-11
node 1.241680208798599E-14 -3.589413127939302E-14 3.264148673464939E-11 8.771800857090962E-10 -8.583217304604442E-10 7.363059318677985E-11
peri 9.517285535224794E-13 -3.068736160076777E-12 7.247711083127815E-9 -8.583217304604442E-10 2.23854060208859E-9 -7.752917559974398E-11
i -6.651371780345775E-15 2.116513834979268E-14 -2.658621653707402E-11 7.363059318677985E-11 -7.752917559974398E-11 2.172426236820883E-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 14.58   n/a MPCxxxxx  
diameter diameter 3.594 km 0.466 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.238   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

21196 (1994 PU5)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PU5 = 1992 EM37 = 1999 PX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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