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101999 (1999 RM76)
Classification: Main-belt Asteroid          SPK-ID: 2101999
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2566040217167523 4.0213e-08  
a 2.357594197248382 7.1949e-09 au
q 1.752626044658369 9.713e-08 au
i 5.382048713936059 3.9178e-06 deg
node 171.1975620826174 3.3739e-05 deg
peri 192.5124566622203 3.4286e-05 deg
M 306.7065878341559 7.4863e-06 deg
tp 2459396.237048008418
(2021-Jun-30.73704801)
2.8031e-05 TDB
period 1322.214780764062
3.62
6.0527e-06
1.657e-08
d
yr
n .2722704398993092 1.2464e-09 deg/d
Q 2.962562349838395 9.0411e-09 au
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      10121 days (27.71 yr)  
   first obs. used      1992-12-01  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:49  

Additional Information
 Earth MOID = .749103 au 
 Jupiter MOID = 2.49649 au 
 T_jup = 3.502 
[ 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 15.96   n/a E2021B55  
diameter diameter 2.133 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101999 (1999 RM76)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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