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52849 (1998 RU72)
Classification: Main-belt Asteroid          SPK-ID: 2052849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1194985681723651 2.821e-08  
a 2.286506021140936 7.3418e-09 au
q 2.013271825497102 6.6002e-08 au
i 2.363056344547544 4.1931e-06 deg
node 27.54640141949313 7.6255e-05 deg
peri 76.3902112241724 7.8785e-05 deg
M 70.19906278971388 1.8129e-05 deg
tp 2458954.244599163188
(2020-Apr-14.74459916)
6.3633e-05 TDB
period 1262.865069392954
3.46
6.0825e-06
1.665e-08
d
yr
n .2850660840378206 1.373e-09 deg/d
Q 2.559740216784769 8.2192e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1262  
   data-arc span      8218 days (22.50 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49563  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:34  

Additional Information
 Earth MOID = 1.03153 au 
 Jupiter MOID = 2.54986 au 
 T_jup = 3.591 
[ 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 15.53   n/a E2021B10  
diameter diameter 1.831 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52849 (1998 RU72)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ 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
1949-Jan-04 02:28 00:02 Thisb 0.0464749213184362 0.0464710102947881 0.0464788329646313 4.57361525517003 4.57361522309283 2432920.602490033 1.56735950537576 337.734294244421 45.737686224009 55.5066194059781 125770.559438584 T 28 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:38 2021-Apr-13 10:48
1962-Oct-27 00:34 < 00:01 Thisb 0.0433752708919125 0.0433712801107805 0.0433792619805752 4.88926786824792 4.88926783609734 2437964.523793025 0.87516261919461 273.134897400744 45.9999647395446 -44.0340438481929 99487.5520536171 T 28 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:38 2021-Apr-13 10:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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