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30851 Reissfelder (1991 TD6)
Classification: Main-belt Asteroid          SPK-ID: 2030851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03847453993678532 4.3885e-08  
a 2.16267431871185 8.4775e-09 au
q 2.079466419266311 9.6114e-08 au
i 2.681186326474375 4.174e-06 deg
node 266.5148007368099 9.8524e-05 deg
peri 263.3110365867282 0.00011276 deg
M 199.9512939044799 5.5509e-05 deg
tp 2459516.957725488965
(2021-Oct-29.45772549)
0.00017959 TDB
period 1161.676252884319
3.18
6.8305e-06
1.87e-08
d
yr
n .3098970122752858 1.8222e-09 deg/d
Q 2.245882218157389 8.8037e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1360  
   data-arc span      12168 days (33.31 yr)  
   first obs. used      1987-05-30  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50307  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 17:21:40  

Additional Information
 Earth MOID = 1.08642 au 
 Jupiter MOID = 2.72359 au 
 T_jup = 3.693 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO337515  
diameter diameter 2.141 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.423   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30851 Reißfelder           Discovered 1991 Oct. 2 by L. D. Schmadel and F. Börngen at Tautenburg.
Günter Reißfelder (b. 1946) is a German physician and well-known expert on urology and ambulant surgery. The name was suggested by the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

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Alternate Designations
 1991 TD6 = 1987 KK2 = 1994 PD11 = 1999 BK3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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