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101980 (1999 RX54)
Classification: Main-belt Asteroid          SPK-ID: 2101980
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532079913114351 3.7634e-08  
a 2.188598410680573 7.5846e-09 au
q 1.853287644392804 8.4396e-08 au
i 2.900953124117804 3.8254e-06 deg
node 286.4376171021504 8.9603e-05 deg
peri 344.6991518159776 9.0771e-05 deg
M 255.4719288149115 1.5772e-05 deg
tp 2459543.882360672042
(2021-Nov-25.38236067)
5.2384e-05 TDB
period 1182.626336068562
3.24
6.1476e-06
1.683e-08
d
yr
n .3044072240068305 1.5824e-09 deg/d
Q 2.523909176968343 8.7466e-09 au
  Orbit Determination Parameters
   # obs. used (total)      888  
   data-arc span      7891 days (21.60 yr)  
   first obs. used      1999-08-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:44  

Additional Information
 Earth MOID = .835439 au 
 Jupiter MOID = 2.56805 au 
 T_jup = 3.658 
[ 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 15.93   n/a E2021B55  

101980 (1999 RX54)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RX54 = 2000 YT45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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