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43845 (1993 OS9)
Classification: Main-belt Asteroid          SPK-ID: 2043845
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07292897896200083 4.6183e-08  
a 2.423242653459849 8.6667e-09 au
q 2.246518040965853 1.0863e-07 au
i 8.291156563948354 2.8039e-06 deg
node 116.7945114476478 3.1084e-05 deg
peri 102.3509990648654 3.7954e-05 deg
M 163.4494137254925 2.1911e-05 deg
tp 2458574.931819274346
(2019-Apr-01.43181927)
8.3667e-05 TDB
period 1377.824122633186
3.77
7.3917e-06
2.024e-08
d
yr
n .261281533750474 1.4017e-09 deg/d
Q 2.599967265953845 9.2988e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1440  
   data-arc span      10097 days (27.64 yr)  
   first obs. used      1993-06-21  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53159  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:11  

Additional Information
 Earth MOID = 1.254 au 
 Jupiter MOID = 2.40519 au 
 T_jup = 3.494 
[ 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 14.93   n/a MPCxxxxx  
diameter diameter 3.053 km 0.743 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.250   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43845 (1993 OS9)          Discovered 1993-Jul-20 by Elst, E. W. at La Silla
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 OS9 = 2000 GK91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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