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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 ]

[ show orbit diagram ]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1947-Jul-16 22:33 00:02 Jupiter 1.98135741387064 1.98135664872725 1.98135817901503 4.79612445481883 4.70614679357158 2432383.439535053 2.04829934486663 196.444942008406 33.7689364042717 -86.2484302998941 3275586.02014661 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:48:54 2021-Aug-25 21:48
2018-Sep-19 09:58 < 00:01 Jupiter 1.98417714364904 1.98417668271254 1.98417760458655 4.79415444978877 4.70426825139007 2458380.914945502 0.274470470334333 143.885327476726 17.7204342997901 84.9902220812529 3477921.53983134 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:48:54 2021-Aug-25 21:48
2089-Nov-22 07:11 00:02 Jupiter 1.98734549431909 1.9873449007457 1.98734608789361 4.791600646337 4.70181037383768 2484377.799393584 2.21009450313593 245.226620896956 26.8144662375072 -88.0966028791422 3576530.73289315 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:48:54 2021-Aug-25 21:48
2161-Jan-26 15:06 00:04 Jupiter 1.99304460466538 1.9930436726956 1.99304553665204 4.78864395570326 4.69905654947764 2510375.129458254 4.32087981494862 400.019219805971 30.2276476284411 -85.5085301628322 3498573.81001925 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:48:54 2021-Aug-25 21:48

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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