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91150 (1998 QA30)
Classification: Main-belt Asteroid          SPK-ID: 2091150
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1669649693537783 3.0422e-08  
a 3.087074499230474 1.781e-08 au
q 2.571641200073628 9.0869e-08 au
i 15.89671082647099 4.4953e-06 deg
node 173.8893469236814 1.3343e-05 deg
peri 108.2696260532632 2.1346e-05 deg
M 113.9624248385981 1.4711e-05 deg
tp 2458769.340113424881
(2019-Oct-12.84011342)
8.1242e-05 TDB
period 1981.157907852569
5.42
1.7145e-05
4.694e-08
d
yr
n .181711916335944 1.5725e-09 deg/d
Q 3.60250779838732 2.0784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      975  
   data-arc span      10895 days (29.83 yr)  
   first obs. used      1991-03-15  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53323  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:10  

Additional Information
 Earth MOID = 1.60922 au 
 Jupiter MOID = 1.86217 au 
 T_jup = 3.146 
[ 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 14.80   n/a MPCxxxxx  
diameter diameter 7.923 km 2.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.041   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

91150 (1998 QA30)          Discovered 1998-Aug-26 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 QA30 = 2002 EJ29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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