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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1107179409060888 3.3564e-08  
a 2.294421795321787 7.8506e-09 au
q 2.040388138573707 7.8167e-08 au
i 6.006728617856977 3.7318e-06 deg
node 140.54948387178 3.4685e-05 deg
peri 240.4628360811882 3.8462e-05 deg
M 231.1534584743508 1.7239e-05 deg
tp 2459454.837497004649
(2021-Aug-28.33749700)
6.161e-05 TDB
period 1269.428709416416
3.48
6.5152e-06
1.784e-08
d
yr
n .2835921366277431 1.4555e-09 deg/d
Q 2.548455452069867 8.7198e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1318  
   data-arc span      9215 days (25.23 yr)  
   first obs. used      1995-02-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:48:05  

Additional Information
 Earth MOID = 1.04991 au 
 Jupiter MOID = 2.89134 au 
 T_jup = 3.581 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456885.5 (2014-Aug-16.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1098223986946314 3.3452e-08  
q 2.042484396119017 7.7806e-08 au
tp 2456915.207062044269
(2014-Sep-14.70706204)
5.8914e-05 TDB
node 140.5786690361752 3.4663e-05 deg
peri 240.2800300017791 3.8533e-05 deg
i 6.00757818686917 3.7331e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1318  
   data-arc span      9215 days (25.23 yr)  
   first obs. used      1995-02-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:48:05  

Additional Information
 Jupiter MOID = 2.89134 au 
 T_jup = 3.581 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.119036561645981E-15 -2.592195164642356E-15 -1.014689459577341E-13 1.176149766462279E-15 -4.21655951480756E-14 -1.565837840913894E-15
q -2.592195164642356E-15 6.053723486745886E-15 2.998805147389564E-13 -3.158772535252826E-15 1.14978237662963E-13 3.729736260973658E-15
tp -1.014689459577341E-13 2.998805147389564E-13 3.470846820936348E-9 -6.580380839786107E-12 1.002990470990881E-9 8.231655889915927E-14
node 1.176149766462279E-15 -3.158772535252826E-15 -6.580380839786107E-12 1.201514141064564E-9 -1.196431807050687E-9 8.569864847791427E-12
peri -4.21655951480756E-14 1.14978237662963E-13 1.002990470990881E-9 -1.196431807050687E-9 1.484764321094482E-9 -8.478166527128392E-12
i -1.565837840913894E-15 3.729736260973658E-15 8.231655889915927E-14 8.569864847791427E-12 -8.478166527128392E-12 1.393598057464218E-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 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

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