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227809 (2007 BA38)
Classification: Main-belt Asteroid          SPK-ID: 2227809
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201116870486792 4.6074e-08  
a 2.298993067828282 1.0055e-08 au
q 2.022857131938208 1.054e-07 au
i 2.879147395814461 6.4557e-06 deg
node 151.5759901663716 8.311e-05 deg
peri 298.5281314919201 8.8507e-05 deg
M 22.41792391821368 2.7777e-05 deg
tp 2459121.213762392909
(2020-Sep-28.71376239)
9.8145e-05 TDB
period 1273.224302245166
3.49
8.3532e-06
2.287e-08
d
yr
n .2827467237038963 1.855e-09 deg/d
Q 2.575129003718355 1.1263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      362  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      2002-10-31  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:15  

Additional Information
 Earth MOID = 1.04101 au 
 Jupiter MOID = 2.58449 au 
 T_jup = 3.581 
[ 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 17.3   n/a MPO450054  
diameter diameter 1.717 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227809 (2007 BA38)          Discovered 2007-Jan-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2007 BA38 = 2004 GU57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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