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192455 (1998 BQ20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2192455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1691352630854353 3.5499e-08  
a 3.238234856777573 2.3102e-08 au
q 2.690535152344072 1.2274e-07 au
i 2.177336323480255 4.2774e-06 deg
node 122.7881016971606 0.00010373 deg
peri 285.1606825508615 0.00010506 deg
M 22.5863381522978 1.4164e-05 deg
tp 2459066.962184669575
(2020-Aug-05.46218467)
8.3413e-05 TDB
period 2128.437695158762
5.83
2.2777e-05
6.236e-08
d
yr
n .1691381433522052 1.81e-09 deg/d
Q 3.785934561211075 2.701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      8889 days (24.34 yr)  
   first obs. used      1996-10-11  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:10  

Additional Information
 Earth MOID = 1.70075 au 
 Jupiter MOID = 1.60564 au 
 T_jup = 3.161 
[ 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 15.68   n/a MPCxxxxx  
diameter diameter 4.460 km 1.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192455 (1998 BQ20)          Discovered 1998-Jan-22 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1998 BQ20 = 2002 TL250 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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