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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09246526321670029 3.4314e-08  
a 3.048877941372526 1.4754e-08 au
q 2.766962640007924 1.0726e-07 au
i 7.434168098294442 4.614e-06 deg
node 206.4201914897427 2.2814e-05 deg
peri 39.79306194836013 3.1494e-05 deg
M 322.4063920349 2.1237e-05 deg
tp 2459203.557947280741
(2020-Dec-20.05794728)
0.00011467 TDB
period 1944.502402880033
5.32
1.4114e-05
3.864e-08
d
yr
n .1851373387180177 1.3438e-09 deg/d
Q 3.330793242737128 1.6118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2214  
   data-arc span      19013 days (52.05 yr)  
   first obs. used      1968-07-18  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48568  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:18  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1916-Aug-01 07:21 00:02 Jupiter 1.6959527007687 1.69595201196781 1.69595338957305 2.92870224585082 2.75289332905318 2421076.806326753 2.2354745852557 159.897047260946 16.787415457311 -81.3457367561753 2580726.15468598 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
1964-Nov-03 02:18 00:01 Jupiter 1.67322831025588 1.67322793898664 1.67322868152521 2.79893212561278 2.6118154588756 2438702.595536960 1.11984051808535 89.2829885055746 16.9202159642662 87.4091863490327 2700174.75289123 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
2013-Feb-12 12:36 < 00:01 Jupiter 1.80063478888278 1.80063446330628 1.80063511445937 2.67583050380821 2.49384533220389 2456336.025324571 0.195112635793887 62.7637045388568 12.3588783892551 89.209080630041 3863965.51608172 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
2022-Jul-15 14:16 < 00:01 Jupiter 1.8715237755047 1.87152336699295 1.87152418401646 3.25574724349555 3.11363473439899 2459776.094191127 0.266403027924242 33.5672798423371 15.593985140219 -81.7270386077561 3312951.37780148 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
2070-Oct-25 15:27 00:01 Jupiter 1.70175733692354 1.70175681322239 1.70175786062535 2.98058362954401 2.80863147067529 2477410.143545622 1.2829763706377 97.2283918022477 16.5642993720942 -81.0780204959595 2645244.55275988 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
2119-Jan-28 20:22 00:02 Jupiter 1.67370504716673 1.673704578899 1.67370551543676 2.76847166617247 2.57920194959536 2495036.348820143 2.37257898425225 166.824883275101 18.0414162248475 84.1486460426274 2628140.42466473 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
2167-May-11 21:09 00:04 Jupiter 1.79512108855934 1.79511956220464 1.79512261491526 2.57795130961537 2.38791518639981 2512671.381308950 3.63197637616104 117.134692639243 40.7375856573932 54.0869613864329 3640958.50999173 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07
2176-Oct-11 10:19 00:04 Jupiter 1.88863116605794 1.88862918725316 1.88863314487066 3.39334186325534 3.25849647035922 2516111.929898387 3.76299786669227 225.097610938048 16.9730685274031 -67.4434796332197 3384959.45258332 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:25 2020-Nov-13 04:07

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