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101144 (1998 RT69)
Classification: Main-belt Asteroid          SPK-ID: 2101144
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968218388356264 4.9342e-08  
a 2.543568220958192 8.763e-09 au
q 2.042938446505338 1.2718e-07 au
i 7.334172292812061 4.6487e-06 deg
node 11.05445518709192 3.4742e-05 deg
peri 335.985403688667 3.6229e-05 deg
M 183.4878188567688 1.2538e-05 deg
tp 2459927.000124564443
(2022-Dec-13.50012456)
5.4154e-05 TDB
period 1481.711024980039
4.06
7.6571e-06
2.096e-08
d
yr
n .2429623549604416 1.2556e-09 deg/d
Q 3.044197995411046 1.0488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      846  
   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      .6058  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:25  

Additional Information
 Earth MOID = 1.03738 au 
 Jupiter MOID = 2.38669 au 
 T_jup = 3.405 
[ 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 15.48   n/a E2021B55  
diameter diameter 4.842 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101144 (1998 RT69)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 RT69 = 2002 RJ48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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