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24291 (1999 XJ191)
Classification: Main-belt Asteroid          SPK-ID: 2024291
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1025203957893602 4.2055e-08  
a 3.107296082590052 2.2364e-08 au
q 2.788734858368191 1.393e-07 au
i 17.10428726868161 5.2833e-06 deg
node 54.68448373344379 1.6782e-05 deg
peri 25.9761803477273 3.3439e-05 deg
M 337.8889956426535 2.9416e-05 deg
tp 2459519.379193579151
(2021-Oct-31.87919358)
0.00016384 TDB
period 2000.655826102105
5.48
2.1599e-05
5.913e-08
d
yr
n .1799409949993203 1.9426e-09 deg/d
Q 3.425857306811912 2.4657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1387  
   data-arc span      10156 days (27.81 yr)  
   first obs. used      1993-10-10  
   last obs. used      2021-07-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51414  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:48:50  

Additional Information
 Earth MOID = 1.81195 au 
 Jupiter MOID = 1.95482 au 
 T_jup = 3.144 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457466.5 (2016-Mar-19.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09987150281848299 4.2122e-08  
q 2.798816386380558 1.3927e-07 au
tp 2457497.277186921540
(2016-Apr-18.77718692)
0.00016481 TDB
node 54.79125766251133 1.6752e-05 deg
peri 22.79907703526376 3.4412e-05 deg
i 17.12189739606779 5.2967e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1387  
   data-arc span      10156 days (27.81 yr)  
   first obs. used      1993-10-10  
   last obs. used      2021-07-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51414  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:48:50  

Additional Information
 Jupiter MOID = 1.95482 au 
 T_jup = 3.144 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.774301260551372E-15 -5.812014905984352E-15 -2.128567829245509E-12 4.35481065562175E-15 -3.47637988401319E-13 -2.999207932230811E-15
q -5.812014905984352E-15 1.939550658640998E-14 7.288587158014341E-12 -1.704653553081396E-14 1.195350318132827E-12 1.314621558961398E-14
tp -2.128567829245509E-12 7.288587158014341E-12 2.716252938278779E-8 -4.635417018123112E-12 4.986574079129825E-9 1.208597383430956E-11
node 4.35481065562175E-15 -1.704653553081396E-14 -4.635417018123112E-12 2.806224744262161E-10 -2.6866541354467E-10 -3.136470327562498E-11
peri -3.47637988401319E-13 1.195350318132827E-12 4.986574079129825E-9 -2.6866541354467E-10 1.184216519115449E-9 3.214895473460377E-11
i -2.999207932230811E-15 1.314621558961398E-14 1.208597383430956E-11 -3.136470327562498E-11 3.214895473460377E-11 2.805457517473765E-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 13.56   n/a MPCxxxxx  
diameter diameter 12.939 km 0.606 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.050   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

24291 (1999 XJ191)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XJ191 = 1993 UA7 = 1996 LA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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