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5774 Ratliff (1989 NR)
Classification: Main-belt Asteroid          SPK-ID: 2005774
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08461086800571364 8.117e-08  
a 2.206756974098907 1.2607e-08 au
q 2.020041351042737 1.8147e-07 au
i 9.441921631110551 8.4639e-06 deg
node 311.4501961340989 3.2584e-05 deg
peri 27.81372663420922 4.8486e-05 deg
M 355.6398781191303 3.7672e-05 deg
tp 2457415.001947123363
(2016-Jan-27.50194712)
0.00012533 JED
period 1197.375006262318
3.28
1.026e-05
2.809e-08
d
yr
n .3006576871215667 2.5763e-09 deg/d
Q 2.393472597155078 1.3673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      22458 days (61.49 yr)  
   first obs. used      1953-08-15  
   last obs. used      2015-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47864  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:00:31  

Additional Information
 Earth MOID = 1.01205 au 
 Jupiter MOID = 2.89277 au 
 T_jup = 3.638 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO279575  
rotation period rot_per 61. h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]

5774 Ratliff           Discovered 1989 July 2 by E. F. Helin at Palomar.
Until his tragic and untimely death, Nicholas Paul Ratliff (1982-2002), of Oklahoma City, was always available to carry out jobs for family and friends, usually at his own expense, and even if he had other plans. A keen baseballer, he also had an interest in astronomy, ever since he was given a telescope at the age of five.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050125/MPCPages.arcLast Updated: 2005-06-01

Alternate Designations
 1989 NR = 1986 RD10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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