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59649 (1999 JB90)
Classification: Main-belt Asteroid          SPK-ID: 2059649
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1107179372115664 3.146e-08  
a 2.294421794813064 7.5621e-09 au
q 2.040388146598102 7.4073e-08 au
i 6.006731735835475 3.1032e-06 deg
node 140.5494933263355 3.4157e-05 deg
peri 240.4628279016294 3.7433e-05 deg
M 231.1534577570608 1.6695e-05 deg
tp 2459454.837499382846
(2021-Aug-28.33749938)
5.9875e-05 TDB
period 1269.428708994227
3.48
6.2758e-06
1.718e-08
d
yr
n .283592136722061 1.402e-09 deg/d
Q 2.548455443028026 8.3994e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1506  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1995-02-04  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:45:46  

Additional Information
 Earth MOID = 1.04991 au 
 Jupiter MOID = 2.89134 au 
 T_jup = 3.581 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1098094899735448 3.1383e-08  
q 2.042975305004485 7.3758e-08 au
tp 2456915.691402323279
(2014-Sep-15.19140232)
5.5913e-05 TDB
node 140.5780754930196 3.413e-05 deg
peri 240.4530296053337 3.7483e-05 deg
i 6.007712978375417 3.1044e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1506  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1995-02-04  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:45:46  

Additional Information
 Jupiter MOID = 2.89134 au 
 T_jup = 3.581 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.849153345009188E-16 -2.30556474803074E-15 1.13387602225186E-13 4.783540672952254E-15 2.93909474687853E-14 -2.054004848804193E-16
q -2.30556474803074E-15 5.440279224315337E-15 -1.594328081882796E-13 -1.130688696049258E-14 -3.724812111473774E-14 6.451770607076813E-16
tp 1.13387602225186E-13 -1.594328081882796E-13 3.126318449513706E-9 -3.64697717447219E-12 8.795915975588746E-10 1.253817793454468E-12
node 4.783540672952254E-15 -1.130688696049258E-14 -3.64697717447219E-12 1.164888729556931E-9 -1.159256954366517E-9 -3.165774557079238E-12
peri 2.93909474687853E-14 -3.724812111473774E-14 8.795915975588746E-10 -1.159256954366517E-9 1.404950969969783E-9 3.499073174088475E-12
i -2.054004848804193E-16 6.451770607076813E-16 1.253817793454468E-12 -3.165774557079238E-12 3.499073174088475E-12 9.637496960269843E-12

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 MPO468499  
diameter diameter 2.027 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.430   0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59649 (1999 JB90)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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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
2014-Feb-27 12:34 < 00:01 Hebe 0.0476326772144578 0.0476316006501783 0.0476337538015235 3.70339970498485 3.70339966974354 2456716.023285129 0.570175988781416 81.9634864526923 29.2853464494231 54.0404936841009 203309.000503127 T 26 CATAB v2.0f-lin.ifort 2020-Nov-12 22:45:49 2020-Nov-12 22:45

Alternate Designations
 1999 JB90 = 2000 QS131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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