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26303 (1998 SD144)
Classification: Main-belt Asteroid          SPK-ID: 2026303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07935260332904193 4.2109e-08  
a 2.544126472147588 1.3656e-08 au
q 2.342243413384346 1.059e-07 au
i 21.79251378735603 5.0837e-06 deg
node 199.2404906054625 1.1854e-05 deg
peri 279.5699145665368 3.3653e-05 deg
M 297.7140532185466 3.3403e-05 deg
tp 2458856.944885406231
(2020-Jan-08.44488541)
0.00013835 TDB
period 1482.198850892848
4.06
1.1934e-05
3.267e-08
d
yr
n .2428823904317177 1.9555e-09 deg/d
Q 2.746009530910831 1.4739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      10572 days (28.94 yr)  
   first obs. used      1990-11-08  
   last obs. used      2019-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53809  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:52:18  

Additional Information
 Earth MOID = 1.44098 au 
 Jupiter MOID = 2.37971 au 
 T_jup = 3.340 
[ 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 14.5   n/a MPO319410  
diameter diameter 3.380 km 0.687 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.295   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26303 (1998 SD144)          Discovered 1998-Sep-18 by Elst, E. W. at La Silla
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SD144 = 1990 VJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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