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JPL Small-Body Database Browser
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91375 (1999 JD99)
Classification: Main-belt Asteroid          SPK-ID: 2091375
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05900058686769113 3.5032e-08  
a 2.35885118491757 8.8112e-09 au
q 2.219677580673885 8.4583e-08 au
i 13.81193012252655 3.8542e-06 deg
node 184.6222122208181 1.4611e-05 deg
peri 2.59684321993612 3.3225e-05 deg
M 338.5603383629941 3.0118e-05 deg
tp 2459079.306976839176
(2020-Aug-17.80697684)
0.00011075 TDB
period 1323.27236047113
3.62
7.4144e-06
2.03e-08
d
yr
n .2720528371588051 1.5243e-09 deg/d
Q 2.498024789161255 9.3311e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      7575 days (20.74 yr)  
   first obs. used      1999-05-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52122  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:28:52  

Additional Information
 Earth MOID = 1.22115 au 
 Jupiter MOID = 2.45716 au 
 T_jup = 3.511 
[ show covariance matrix ]

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 14.6   n/a MPO359382  
diameter diameter 3.114 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.317   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91375 (1999 JD99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 JD99 = 2000 RW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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