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45113 (1999 XZ78)
Classification: Main-belt Asteroid          SPK-ID: 2045113
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306750165765495 3.3273e-08  
a 2.602774936652035 1.2661e-08 au
q 2.262657278660003 8.4601e-08 au
i 4.915194699463834 3.8871e-06 deg
node 80.15572297455199 5.3048e-05 deg
peri 198.6462060058243 5.6077e-05 deg
M 150.3066561691329 1.8507e-05 deg
tp 2458560.132822889529
(2019-Mar-17.63282289)
7.8237e-05 TDB
period 1533.745674578528
4.20
1.1191e-05
3.064e-08
d
yr
n .2347194883525443 1.7127e-09 deg/d
Q 2.942892594644068 1.4315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      8204 days (22.46 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:35:03  

Additional Information
 Earth MOID = 1.24501 au 
 Jupiter MOID = 2.16963 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457163.5 (2015-May-21.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1310109959417517 3.3166e-08  
q 2.261830934284021 8.4397e-08 au
tp 2457028.669048710584
(2015-Jan-06.16904871)
7.8078e-05 TDB
node 80.17142955999887 5.3078e-05 deg
peri 199.0916594030715 5.6108e-05 deg
i 4.914370888771499 3.8861e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      8204 days (22.46 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:35:03  

Additional Information
 Jupiter MOID = 2.16963 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.099970199859637E-15 -2.7763394869015E-15 1.422987858099876E-13 2.035244487232365E-15 3.559014148898948E-14 -8.085796316396902E-16
q -2.7763394869015E-15 7.122884928609175E-15 -4.224422112078014E-13 -5.157293603473604E-15 -1.029609949277414E-13 2.127083156342481E-15
tp 1.422987858099876E-13 -4.224422112078014E-13 6.096139409826869E-9 3.687246497196811E-11 1.445400671648549E-9 -1.117046257848422E-12
node 2.035244487232365E-15 -5.157293603473604E-15 3.687246497196811E-11 2.817265808356277E-9 -2.797922941144318E-9 -2.21979813220576E-11
peri 3.559014148898948E-14 -1.029609949277414E-13 1.445400671648549E-9 -2.797922941144318E-9 3.148134071211081E-9 2.184448903089515E-11
i -8.085796316396902E-16 2.127083156342481E-15 -1.117046257848422E-12 -2.21979813220576E-11 2.184448903089515E-11 1.510176072856768E-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 MPO502456  
diameter diameter 2.011 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.363   0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

45113 (1999 XZ78)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XZ78 = 2001 DD33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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