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9133 d'Arrest (3107 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009133
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711808642085235 3.4842e-08  
a 2.626193544072485 1.0838e-08 au
q 2.176639463619312 9.0024e-08 au
i 12.810229161167 4.0622e-06 deg
node 214.7899643478757 1.9557e-05 deg
peri 145.6017120693541 2.3618e-05 deg
M 60.75763627621072 1.332e-05 deg
tp 2458938.146483425853
(2020-Mar-29.64648343)
5.7087e-05 TDB
period 1554.492105935877
4.26
9.6225e-06
2.634e-08
d
yr
n .23158689492557 1.4335e-09 deg/d
Q 3.075747624525658 1.2693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1422  
   data-arc span      22030 days (60.31 yr)  
   first obs. used      1960-09-25  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51069  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:47:00  

Additional Information
 Earth MOID = 1.18611 au 
 Jupiter MOID = 2.44141 au 
 T_jup = 3.346 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456977.5 (2014-Nov-16.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735123675126697 3.4921e-08  
q 2.169435806992818 9.0472e-08 au
tp 2457383.775169432533
(2015-Dec-27.27516943)
5.4122e-05 TDB
node 214.8449474304624 1.953e-05 deg
peri 145.5578565470437 2.3449e-05 deg
i 12.8227577731191 4.0661e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1422  
   data-arc span      22030 days (60.31 yr)  
   first obs. used      1960-09-25  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51069  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:47:00  

Additional Information
 Jupiter MOID = 2.44141 au 
 T_jup = 3.346 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.219478614748685E-15 -3.144543627228139E-15 -1.0665769777079E-13 -2.620116476549055E-15 -4.734047384300256E-14 -2.941831390725775E-15
q -3.144543627228139E-15 8.185258054166367E-15 3.219835886594328E-13 6.798323999711476E-15 1.279801538011019E-13 7.964267751364139E-15
tp -1.0665769777079E-13 3.219835886594328E-13 2.92922092363848E-9 1.784559084049067E-11 7.221049453145767E-10 2.294298119963527E-13
node -2.620116476549055E-15 6.798323999711476E-15 1.784559084049067E-11 3.81418586117504E-10 -3.669973902799374E-10 6.863951515895289E-12
peri -4.734047384300256E-14 1.279801538011019E-13 7.221049453145767E-10 -3.669973902799374E-10 5.498639437626964E-10 -6.642820170600588E-12
i -2.941831390725775E-15 7.964267751364139E-15 2.294298119963527E-13 6.863951515895289E-12 -6.642820170600588E-12 1.65328337725895E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.30   n/a E2021B10  
diameter diameter 4.366 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9133 d´Arrest           Discovered 1960 Sept. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named in memory of Heinrich Louis d´Arrest (1822-1875), German astronomer. As an assistant astronomer at the Berlin Observatory, he, together with J. G. Galle, discovered the planet Neptune in 1846. From 1852 d´Arrest served as an astronomer at the Leipzig Observatory and was appointed professor of astronomy. In 1857 he went to Denmark as director of the Copenhagen Observatory, where he discovered (76) Freia. He detected several comets, among them a famous short-period comet, and he was a prolific observer of minor planets and nebulae.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 3107 P-L = 1990 UJ3 = 1990 VN9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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