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43891 (1995 SQ1)
Classification: Main-belt Asteroid          SPK-ID: 2043891
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2198750652056464 1.4295e-08  
a 2.369122932705354 9.3454e-09 au
q 1.848211873396572 3.5559e-08 au
i 23.72041038251411 6.888e-07 deg
node 313.6083087944695 2.2918e-06 deg
peri 122.2097178150845 4.6914e-06 deg
M 280.1961669366873 6.9438e-06 deg
tp 2459495.757591355487
(2021-Oct-08.25759136)
2.6758e-05 TDB
period 1331.925157074194
3.65
7.881e-06
2.158e-08
d
yr
n .2702854571729862 1.5993e-09 deg/d
Q 2.890033992014136 1.14e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1195  
   data-arc span      10735 days (29.39 yr)  
   first obs. used      1991-08-02  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:38  

Additional Information
 Earth MOID = .94487 au 
 Jupiter MOID = 2.45538 au 
 T_jup = 3.402 
[ 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 14.11   n/a E2021B10  
diameter diameter 4.633 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.248   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

43891 (1995 SQ1)          Discovered 1995-Sep-21 by Spahr, T. B. at Catalina Station
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 SQ1 = 1991 PA3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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