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43887 (1995 OS4)
Classification: Main-belt Asteroid          SPK-ID: 2043887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249520721626352 7.0599e-08  
a 2.583680953759299 1.6834e-08 au
q 2.260844664779941 1.742e-07 au
i 11.78161130838761 6.9749e-06 deg
node 326.9306529274082 2.0555e-05 deg
peri 251.1252803687696 3.2376e-05 deg
M 134.3867937947334 2.394e-05 deg
tp 2458634.246571808250
(2019-May-30.74657181)
0.00010154 TDB
period 1516.899305302266
4.15
1.4825e-05
4.059e-08
d
yr
n .23732623433977 2.3194e-09 deg/d
Q 2.906517242738657 1.8937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      9270 days (25.38 yr)  
   first obs. used      1995-07-22  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57595  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:35  

Additional Information
 Earth MOID = 1.28651 au 
 Jupiter MOID = 2.18199 au 
 T_jup = 3.383 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.55   n/a E2021B10  
diameter diameter 2.609 km 0.537 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43887 (1995 OS4)          Discovered 1995-Jul-22 by Spacewatch at Kitt Peak
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 OS4 = 2002 AC119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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