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19843 (2000 SM309)
Classification: Main-belt Asteroid          SPK-ID: 2019843
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2431024254985708 3.9373e-08  
a 2.296005689617445 8.3682e-09 au
q 1.737841137512926 9.2522e-08 au
i 2.359976295884465 3.7964e-06 deg
node 193.5563370331708 9.1499e-05 deg
peri 184.9837711262641 9.1806e-05 deg
M 309.7728340494778 9.2334e-06 deg
tp 2459377.794000623319
(2021-Jun-12.29400062)
3.2953e-05 TDB
period 1270.743411787726
3.48
6.9472e-06
1.902e-08
d
yr
n .2832987341587234 1.5488e-09 deg/d
Q 2.854170241721965 1.0403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1238  
   data-arc span      24567 days (67.26 yr)  
   first obs. used      1953-04-15  
   last obs. used      2020-07-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54624  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:07:49  

Additional Information
 Earth MOID = .738554 au 
 Jupiter MOID = 2.6087 au 
 T_jup = 3.554 
[ 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 15.4   n/a MPO337425  
diameter diameter 2.217 km 0.430 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.313   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19843 (2000 SM309)          Discovered 2000-Sep-30 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 SM309 = 1972 TW1 = 1979 WG7 = 1993 VT4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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