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72940 (2002 BC30)
Classification: Main-belt Asteroid          SPK-ID: 2072940
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 .2245329428401301 4.4035e-08  
a 2.363680266375574 9.8755e-09 au
q 1.832956180233124 1.0478e-07 au
i 9.86756172096122 4.7864e-06 deg
node 86.09863781087664 2.895e-05 deg
peri 170.9480294743224 3.0991e-05 deg
M 349.2287677704646 1.3028e-05 deg
tp 2459240.214071164396
(2021-Jan-25.71407116)
4.8185e-05 TDB
period 1327.337979027036
3.63
8.3185e-06
2.277e-08
d
yr
n .2712195429410427 1.6997e-09 deg/d
Q 2.894404352518025 1.2093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      7609 days (20.83 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-05-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:04:55  

Additional Information
 Earth MOID = .816789 au 
 Jupiter MOID = 2.17398 au 
 T_jup = 3.496 
[ 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 15.63   n/a E2021B10  
diameter diameter 1.821 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72940 (2002 BC30)          Discovered 2002-Jan-21 by NEAT at Palomar
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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