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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 ]

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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 .08402778664013752 4.447e-08  
a 2.206891549851646 7.4233e-09 au
q 2.02145133756279 9.5861e-08 au
i 9.442408732131208 3.3125e-06 deg
node 311.3813176225428 2.6996e-05 deg
peri 27.99482625929133 3.7246e-05 deg
M 176.6694927458011 2.5296e-05 deg
tp 2458612.836150229821
(2019-May-09.33615023)
8.4473e-05 TDB
period 1197.484538101118
3.28
6.042e-06
1.654e-08
d
yr
n .3006301864831268 1.5168e-09 deg/d
Q 2.392331762140503 8.0471e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1860  
   data-arc span      24628 days (67.43 yr)  
   first obs. used      1953-08-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:26:53  

Additional Information
 Earth MOID = 1.01361 au 
 Jupiter MOID = 2.90228 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 14.07   n/a E2021B10  
rotation period rot_per 61. h n/a LCDB (Rev. 2020-October); 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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