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160877 (2001 OP77)
Classification: Main-belt Asteroid          SPK-ID: 2160877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2079031103345926 5.967e-08  
a 3.119940206983355 2.5674e-08 au
q 2.471294933893563 1.872e-07 au
i 25.4073179182701 7.7956e-06 deg
node 309.0435585136438 1.1739e-05 deg
peri 71.02118635794049 2.2388e-05 deg
M 128.4747126725984 1.6219e-05 deg
tp 2458482.155141659700
(2018-Dec-29.65514166)
8.8987e-05 TDB
period 2012.879761494607
5.51
2.4846e-05
6.802e-08
d
yr
n .1788482386710928 2.2076e-09 deg/d
Q 3.768585480073147 3.1012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7140 days (19.55 yr)  
   first obs. used      2001-07-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5282  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:03:10  

Additional Information
 Earth MOID = 1.58474 au 
 Jupiter MOID = 2.05516 au 
 T_jup = 3.036 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.59   n/a MPCxxxxx  
diameter diameter 8.386 km 0.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160877 (2001 OP77)          Discovered 2001-Jul-26 by NEAT at Palomar
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

Alternate Designations
 2001 OP77 = 2002 XK65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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