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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2566643250952009 4.0893e-08  
a 2.356796137325366 7.2183e-09 au
q 1.751890647351774 9.8729e-08 au
i 5.38205337177568 3.9406e-06 deg
node 171.2134179352434 3.4128e-05 deg
peri 192.5765783282584 3.4674e-05 deg
M 252.1602579160582 7.3527e-06 deg
tp 2459396.374741850798
(2021-Jun-30.87474185)
2.8047e-05 TDB
period 1321.543471008626
3.62
6.0714e-06
1.662e-08
d
yr
n .2724087462104001 1.2515e-09 deg/d
Q 2.961701627298957 9.071e-09 au
  Orbit Determination Parameters
   # obs. used (total)      828  
   data-arc span      10121 days (27.71 yr)  
   first obs. used      1992-12-01  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:16  

Additional Information
 Earth MOID = .749989 au 
 Jupiter MOID = 2.49644 au 
 T_jup = 3.503 
[ 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 15.9   n/a MPO432546  
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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