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192401 (1997 AR8)
Classification: Main-belt Asteroid          SPK-ID: 2192401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2056527482020588 5.7429e-08  
a 2.603115331244177 1.5133e-08 au
q 2.067777509486899 1.5776e-07 au
i 10.62586227715212 5.0455e-06 deg
node 300.0222344611043 2.0953e-05 deg
peri 60.77413339090399 2.4064e-05 deg
M 358.4190593763793 1.0656e-05 deg
tp 2459207.236768136892
(2020-Dec-23.73676814)
4.5428e-05 TDB
period 1534.04656256264
4.20
1.3377e-05
3.662e-08
d
yr
n .2346734504581246 2.0464e-09 deg/d
Q 3.138453153001454 1.8245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      8779 days (24.04 yr)  
   first obs. used      1997-01-02  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51838  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:15:57  

Additional Information
 Earth MOID = 1.08547 au 
 Jupiter MOID = 2.39589 au 
 T_jup = 3.360 
[ 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 15.52   n/a MPCxxxxx  
diameter diameter 4.784 km 0.908 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192401 (1997 AR8)          Discovered 1997-Jan-02 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1997 AR8 = 1999 NG7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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