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6888 (1971 BD3)
Classification: Main-belt Asteroid          SPK-ID: 2006888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497183208343448 2.8406e-08  
a 2.561931256651633 8.1765e-09 au
q 2.178363210812728 7.162e-08 au
i 3.760054429535543 3.347e-06 deg
node 248.6608647389514 6.8451e-05 deg
peri 171.8965098208373 7.0334e-05 deg
M 72.43270147985598 1.6252e-05 deg
tp 2458699.142629556149
(2019-Aug-03.64262956)
6.74e-05 TDB
period 1497.7855463524
4.10
7.1704e-06
1.963e-08
d
yr
n .2403548364294997 1.1507e-09 deg/d
Q 2.945499302490539 9.4007e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2587  
   data-arc span      18025 days (49.35 yr)  
   first obs. used      1971-01-27  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:32:19  

Additional Information
 Earth MOID = 1.19118 au 
 Jupiter MOID = 2.36978 au 
 T_jup = 3.416 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456827.5 (2014-Jun-19.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1478333247503571 2.8267e-08  
q 2.184006022102255 7.1095e-08 au
tp 2457199.634869552388
(2015-Jun-26.13486955)
6.8317e-05 TDB
node 248.8112284317707 6.8599e-05 deg
peri 171.4975300315012 7.0549e-05 deg
i 3.753619243779743 3.3453e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2587  
   data-arc span      18025 days (49.35 yr)  
   first obs. used      1971-01-27  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:32:19  

Additional Information
 Jupiter MOID = 2.36978 au 
 T_jup = 3.416 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.990130207443714E-16 -2.000405662133162E-15 4.945676880875094E-13 7.977782014016624E-15 9.932529367077123E-14 -1.875098101588576E-16
q -2.000405662133162E-15 5.054483031343652E-15 -1.245968949066037E-12 -1.89991336348705E-14 -2.549378835741793E-13 5.592548041335929E-16
tp 4.945676880875094E-13 -1.245968949066037E-12 4.667162891397723E-9 2.865425523998913E-11 1.151914165344355E-9 -3.700090856935181E-13
node 7.977782014016624E-15 -1.89991336348705E-14 2.865425523998913E-11 4.705824585579262E-9 -4.688410958837602E-9 7.435298081693859E-11
peri 9.932529367077123E-14 -2.549378835741793E-13 1.151914165344355E-9 -4.688410958837602E-9 4.977124019179806E-9 -7.430701384185247E-11
i -1.875098101588576E-16 5.592548041335929E-16 -3.700090856935181E-13 7.435298081693859E-11 -7.430701384185247E-11 1.119118359233271E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO309204  
diameter diameter 5.705 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.260   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6888 (1971 BD3)          Discovered 1971-Jan-27 by Torres, C., Petit, J. at Cerro El Roble
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 BD3 = 1971 DF = 1976 JY5 = 1986 WX6 = 1990 VJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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