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13989 Murikabushi (1993 BG)
Classification: Main-belt Asteroid          SPK-ID: 2013989
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2883654235222496 1.3158e-08  
a 2.378604974110657 7.7911e-09 au
q 1.692697543359108 3.0923e-08 au
i 14.59442441296958 6.0024e-07 deg
node 123.9798584006248 1.4879e-06 deg
peri 234.7015296478552 4.0102e-06 deg
M 303.2992925949598 6.4004e-06 deg
tp 2459411.541510905939
(2021-Jul-16.04151091)
2.459e-05 TDB
period 1339.929383656765
3.67
6.5834e-06
1.802e-08
d
yr
n .2686708750408426 1.32e-09 deg/d
Q 3.064512404862207 1.0038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1823  
   data-arc span      13130 days (35.95 yr)  
   first obs. used      1984-08-02  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:14:56  

Additional Information
 Earth MOID = .727715 au 
 Jupiter MOID = 2.46949 au 
 T_jup = 3.441 
[ 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 14.28   n/a E2021B10  
diameter diameter 5.012 km 0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.132   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

13989 Murikabushi           Discovered 1993 Jan. 16 by T. Seki at Geisei.
Murikabushi ("a swarm of stars" in the Okinawa dialect) is the name of the 1.05-m infrared-optical telescope at the Ishigakijima Astronomical Observatory. The telescope was named following a popular suggestion from Okinawa citizens.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

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Alternate Designations
 1993 BG = 1984 PE = 1997 AA15 = 2000 AP187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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