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109724 (2001 RS55)
Classification: Main-belt Asteroid          SPK-ID: 2109724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1261511521711584 4.1884e-08  
a 2.45369987129304 1.2885e-08 au
q 2.1441628054472 1.0851e-07 au
i 10.39150482832549 4.6917e-06 deg
node 144.8658898630138 2.2271e-05 deg
peri 283.4151155243274 3.1933e-05 deg
M 250.2762177525955 2.6258e-05 deg
tp 2459428.386767361042
(2021-Aug-01.88676736)
0.00010435 TDB
period 1403.881939675106
3.84
1.1058e-05
3.028e-08
d
yr
n .2564318193902496 2.0198e-09 deg/d
Q 2.76323693713888 1.451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      7974 days (21.83 yr)  
   first obs. used      1999-01-14  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:29  

Additional Information
 Earth MOID = 1.18631 au 
 Jupiter MOID = 2.51541 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457664.5 (2016-Oct-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275558886467038 4.2161e-08  
q 2.139687445318348 1.0941e-07 au
tp 2458023.016881258886
(2017-Sep-26.51688126)
9.6683e-05 TDB
node 144.973050487485 2.231e-05 deg
peri 282.9090936780148 3.1695e-05 deg
i 10.38366301958668 4.6893e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      7974 days (21.83 yr)  
   first obs. used      1999-01-14  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:29  

Additional Information
 Jupiter MOID = 2.51541 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.777554071230634E-15 -4.594429932664319E-15 -1.645190052135908E-12 -9.294297464964018E-15 -3.303765800213592E-13 1.092937040092034E-15
q -4.594429932664319E-15 1.197132065047237E-14 4.609017263022032E-12 2.390051277048E-14 9.330071168073916E-13 -2.816992647466151E-15
tp -1.645190052135908E-12 4.609017263022032E-12 9.347524962145215E-9 1.552625789557031E-11 2.187398041414545E-9 -3.488372206209038E-12
node -9.294297464964018E-15 2.390051277048E-14 1.552625789557031E-11 4.977583237613244E-10 -4.856328668354834E-10 1.34176848386438E-11
peri -3.303765800213592E-13 9.330071168073916E-13 2.187398041414545E-9 -4.856328668354834E-10 1.004566645988571E-9 -1.408685471820194E-11
i 1.092937040092034E-15 -2.816992647466151E-15 -3.488372206209038E-12 1.34176848386438E-11 -1.408685471820194E-11 2.198927189485869E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436527  
diameter diameter 1.768 km 0.269 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.356   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109724 (2001 RS55)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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