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49127 (1998 ST22)
Classification: Main-belt Asteroid          SPK-ID: 2049127
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1890473941273798 4.4834e-08  
a 2.61549371867799 8.8335e-09 au
q 2.121041446805386 1.1738e-07 au
i 14.42347175598545 5.1624e-06 deg
node 45.37424293293559 1.3227e-05 deg
peri 319.2771505182539 1.6992e-05 deg
M 331.8439650617559 9.3384e-06 deg
tp 2458721.336446035790
(2019-Aug-25.83644604)
4.0019e-05 TDB
period 1545.001654824521
4.23
7.8271e-06
2.143e-08
d
yr
n .2330094591651996 1.1804e-09 deg/d
Q 3.109945990550595 1.0504e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1491  
   data-arc span      7760 days (21.25 yr)  
   first obs. used      1998-08-31  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48247  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:17:13  

Additional Information
 Earth MOID = 1.14148 au 
 Jupiter MOID = 2.39794 au 
 T_jup = 3.338 
[ 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 14.1   n/a MPO365824  
diameter diameter 3.395 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.422   0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49127 (1998 ST22)          Discovered 1998-Sep-24 by Visnjan at Visnjan
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 ST22 = 2000 FL11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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