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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09246524679053615 3.6982e-08  
a 3.048877930942925 1.6406e-08 au
q 2.766962680624068 1.1299e-07 au
i 7.434168489073918 4.6723e-06 deg
node 206.4202004692519 2.5571e-05 deg
peri 39.79305708397376 3.3493e-05 deg
M 322.4063918734145 2.1528e-05 deg
tp 2459203.557947111057
(2020-Dec-20.05794711)
0.00011637 TDB
period 1944.502392902403
5.32
1.5695e-05
4.297e-08
d
yr
n .1851373396679944 1.4944e-09 deg/d
Q 3.330793181261781 1.7923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1880  
   data-arc span      18827 days (51.55 yr)  
   first obs. used      1968-07-18  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:27:35  

Additional Information
 Earth MOID = 1.75911 au 
 Jupiter MOID = 1.68318 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 12.8   n/a MPO435722  
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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