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21005 (1988 BF5)
Classification: Main-belt Asteroid          SPK-ID: 2021005
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351783612058008 4.0445e-08  
a 2.662450528874779 1.2524e-08 au
q 2.302544829589968 1.0346e-07 au
i 10.6947770539557 3.771e-06 deg
node 243.8226607069419 1.9867e-05 deg
peri 330.729099339246 2.3716e-05 deg
M 155.2689419167968 1.3431e-05 deg
tp 2458516.111284768224
(2019-Feb-01.61128477)
5.8132e-05 TDB
period 1586.794721738143
4.34
1.1196e-05
3.065e-08
d
yr
n .2268724461130443 1.6008e-09 deg/d
Q 3.022356228159589 1.4217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1298  
   data-arc span      12015 days (32.90 yr)  
   first obs. used      1988-01-28  
   last obs. used      2020-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:50:30  

Additional Information
 Earth MOID = 1.29983 au 
 Jupiter MOID = 1.993 au 
 T_jup = 3.347 
[ 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 14.34   n/a E2021B10  
diameter diameter 8.219 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21005 (1988 BF5)          Discovered 1988-Jan-28 by McNaught, R. H. at Siding Spring
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 BF5 = 1998 QP82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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