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2654 Ristenpart (1968 OG)
Classification: Main-belt Asteroid          SPK-ID: 2002654
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09251641158778012 1.289e-08  
a 3.048902850078548 1.3934e-08 au
q 2.766829299109525 3.776e-08 au
i 7.434164706573081 7.1816e-07 deg
node 206.4191039790977 7.839e-06 deg
peri 39.87178714711789 1.5632e-05 deg
M 359.3701212821765 1.2718e-05 deg
tp 2459203.902265805322
(2020-Dec-20.40226581)
6.8694e-05 TDB
period 1944.526232206052
5.32
1.333e-05
3.65e-08
d
yr
n .1851350699401892 1.2691e-09 deg/d
Q 3.33097640104757 1.5223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2238  
   data-arc span      19013 days (52.05 yr)  
   first obs. used      1968-07-18  
   last obs. used      2020-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:04:42  

Additional Information
 Earth MOID = 1.75751 au 
 Jupiter MOID = 1.68207 au 
 T_jup = 3.218 
[ 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 12.89   n/a E2021B10  
diameter diameter 16.101 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2654 Ristenpart (1968 OG)          Discovered 1968-Jul-18 by Torres, C. at Cerro El Roble
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1968 OG = 1978 JA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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