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175791 (1999 RM68)
Classification: Main-belt Asteroid          SPK-ID: 2175791
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113374594616805 4.8057e-08  
a 2.348805069240799 1.3167e-08 au
q 2.087295080060812 1.1884e-07 au
i 7.137284386546533 4.0997e-06 deg
node 148.7661566790311 3.2539e-05 deg
peri 208.9457681798468 3.7439e-05 deg
M 316.8337800700525 1.9202e-05 deg
tp 2459358.155965493718
(2021-May-23.65596549)
7.0717e-05 TDB
period 1314.82783690222
3.60
1.1056e-05
3.027e-08
d
yr
n .2738001051515401 2.3023e-09 deg/d
Q 2.610315058420786 1.4633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7678 days (21.02 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:50  

Additional Information
 Earth MOID = 1.08367 au 
 Jupiter MOID = 2.808 au 
 T_jup = 3.540 
[ 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 16.95   n/a E2021B55  
diameter diameter 2.084 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175791 (1999 RM68)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 1999 RM68 = 2003 UY282 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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