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JPL Small-Body Database Browser
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268101 (2004 RA321)
Classification: Main-belt Asteroid          SPK-ID: 2268101
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1033101281694791 5.144e-08  
a 2.773204540898675 2.3806e-08 au
q 2.486704424338252 1.446e-07 au
i 4.532174333343536 6.2942e-06 deg
node 275.3066256231673 8.8396e-05 deg
peri 149.0989805582258 9.8306e-05 deg
M 84.63472879634857 4.0669e-05 deg
tp 2458603.932255748769
(2019-Apr-30.43225575)
0.00018961 TDB
period 1686.829862407527
4.62
2.172e-05
5.947e-08
d
yr
n .2134180856190144 2.748e-09 deg/d
Q 3.059704657459099 2.6265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      6975 days (19.10 yr)  
   first obs. used      2000-12-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55989  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:00:56  

Additional Information
 Earth MOID = 1.5016 au 
 Jupiter MOID = 2.20529 au 
 T_jup = 3.324 
[ 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 16.3   n/a MPO413198  
diameter diameter 2.992 km 0.706 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268101 (2004 RA321)          Discovered 2004-Sep-13 by LINEAR at Socorro
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ 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
1989-Nov-27 00:14 00:01 Inter 0.0429346901090119 0.0429222402971309 0.0429471411516121 3.98647861461933 3.98647852908884 2447857.509410081 1.30825321115899 720.301039941369 91.7622179203608 -30.8316556099129 36648.3364167967 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 13:00:57 2020-Feb-25 13:00
2180-Aug-24 18:58 00:09 Thisb 0.0388733809743208 0.0387982755641224 0.0389486483023381 3.8395615185573 3.83956147287575 2517525.290525041 8.79314097177149 5448.19177390537 125.542048281115 -46.5702299911065 33626.9717870165 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 13:00:57 2020-Feb-25 13:00

Alternate Designations
 2004 RA321 = 2000 YA144 = 2005 YZ32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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