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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .083944000764682 4.5318e-08  
a 2.206937866839076 7.6844e-09 au
q 2.021678672857531 9.7425e-08 au
i 9.442234453768556 3.3211e-06 deg
node 311.3815488305175 2.7786e-05 deg
peri 27.94503540650906 3.8571e-05 deg
M 116.6068686675146 2.6008e-05 deg
tp 2458612.613005120670
(2019-May-09.11300512)
8.6856e-05 TDB
period 1197.522236487778
3.28
6.2545e-06
1.712e-08
d
yr
n .3006207225477889 1.5701e-09 deg/d
Q 2.392197060820621 8.3294e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1755  
   data-arc span      24352 days (66.67 yr)  
   first obs. used      1953-08-15  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:25:39  

Additional Information
 Earth MOID = 1.01572 au 
 Jupiter MOID = 2.90279 au 
 T_jup = 3.638 
[ 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 14.1   n/a MPO502209  
rotation period rot_per 61. h n/a LCDB (Rev. 2019-August); 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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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