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JPL Small-Body Database Browser
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7824 Lynch (1991 RM2)
Classification: Main-belt Asteroid          SPK-ID: 2007824
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.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083884735686037 3.0661e-08  
a 2.260336634979967 5.6793e-09 au
q 1.789308533865297 6.9659e-08 au
i 8.715603596719717 3.6726e-06 deg
node 167.8539880581016 2.2164e-05 deg
peri 187.6245631202551 2.3596e-05 deg
M 48.79142608518837 7.9145e-06 deg
tp 2458432.271673730331
2.7226e-05 TDB
period 1241.246717227346
n .2900309785343526 1.0931e-09 deg/d
Q 2.731364736094636 6.8628e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1945  
   data-arc span      34843 days (95.39 yr)  
   first obs. used      1923-09-13  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46962  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:52:20  

Additional Information
 Earth MOID = .783951 au 
 Jupiter MOID = 2.70817 au 
 T_jup = 3.576 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO452279  
diameter diameter 4.899 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 75.30 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2011) Posting on CALL web site.]
geometric albedo albedo 0.321   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

7824 Lynch           Discovered 1991 Sept. 7 by E. F. Helin at Palomar.
Named in honor of William Lynch III of the Jet Propulsion Laboratory and an outstanding model of efficiency, friendliness and dedication to his work and responsibilities. He is the epitome of the NASA/JPL motto, "Faster, better and cheaper", in the sense that anyone who works in a highly-charged, positive fashion, streamlined for action, leads to a more successful and economical operation. Always with a big smile and a cheerful greeting, he is one of JPL's biggest assets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1991 RM2 = 1994 NR = A923 RE 
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