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24642 (1984 SA)
Classification: Main-belt Asteroid          SPK-ID: 2024642
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2223198475699659 1.0892e-08  
a 2.284970375746494 7.2854e-09 au
q 1.776976110108645 2.5083e-08 au
i 5.869618323407701 8.4958e-07 deg
node 254.041102430397 7.9617e-06 deg
peri 78.27431940017135 8.9414e-06 deg
M 197.5319040751844 4.7926e-06 deg
tp 2459769.857279446548
(2022-Jul-09.35727945)
1.8307e-05 TDB
period 1261.593049601624
3.45
6.0337e-06
1.652e-08
d
yr
n .285353506119646 1.3647e-09 deg/d
Q 2.792964641384342 8.9051e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      13332 days (36.50 yr)  
   first obs. used      1984-09-22  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48282  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:36:00  

Additional Information
 Earth MOID = .776077 au 
 Jupiter MOID = 2.60037 au 
 T_jup = 3.563 
[ 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 14.43   n/a MPCxxxxx  
diameter diameter 2.657 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.434   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

24642 (1984 SA)          Discovered 1984-Sep-22 by Copenhagen Observatory at Brorfelde
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1984 SA = 1991 TX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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