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JPL Small-Body Database Browser
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39582 (1993 FR21)
Classification: Main-belt Asteroid          SPK-ID: 2039582
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02762617568376467 4.7654e-08  
a 2.727000339818947 1.8465e-08 au
q 2.651663749341423 1.2594e-07 au
i 5.457604964527468 6.0603e-06 deg
node 4.884811707537716 4.3777e-05 deg
peri 113.0835840685886 0.0001161 deg
M 83.24203008470695 0.00010721 deg
tp 2458620.164926002435
(2019-May-16.66492600)
0.00048886 TDB
period 1644.849681102121
4.50
1.6707e-05
4.574e-08
d
yr
n .2188649845247769 2.223e-09 deg/d
Q 2.802336930296471 1.8976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      9899 days (27.10 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:44:29  

Additional Information
 Earth MOID = 1.67286 au 
 Jupiter MOID = 2.19892 au 
 T_jup = 3.349 
[ 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 15.3   n/a MPO426180  
diameter diameter 4.716 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39582 (1993 FR21)          Discovered 1993-Mar-21 by UESAC at La Silla
Reference: 20020526/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
2083-Oct-16 12:08 00:06 Hygie 0.0495918898310101 0.0495801930844482 0.0496035911588396 2.39399462096021 2.39399429552194 2482149.005592606 5.64644995908366 949.129004706532 58.1628095982949 -52.4693022199495 100763.509713776 T 20 CATAB v2.0f-lin.ifort 2020-May-20 08:44:43 2020-May-20 08:44

Alternate Designations
 1993 FR21 = 1999 RJ69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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