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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 ]

[ 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 .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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456283.5 (2012-Dec-22.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03790698267453853 4.3684e-08  
q 2.081273455161847 9.5638e-08 au
tp 2456032.770789080779
(2012-Apr-15.27078908)
0.00018114 TDB
node 266.5782082319756 9.8478e-05 deg
peri 263.8369443883232 0.00011326 deg
i 2.681326633578112 4.1743e-06 deg
  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
 Jupiter MOID = 2.72359 au 
 T_jup = 3.693 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.908280241816789E-15 -4.162754155646066E-15 -2.470629253915436E-12 4.574845738109716E-16 -7.343426348221231E-13 -2.735948721943333E-16
q -4.162754155646066E-15 9.146693524851504E-15 5.406333048391773E-12 -1.792682447032713E-15 1.608714094271728E-12 6.733634767483357E-16
tp -2.470629253915436E-12 5.406333048391773E-12 3.281277320035631E-8 -1.907833526687771E-12 1.015504540028645E-8 1.995072029629818E-12
node 4.574845738109716E-16 -1.792682447032713E-15 -1.907833526687771E-12 9.697972624800527E-9 -9.687063201187626E-9 1.167316978904606E-10
peri -7.343426348221231E-13 1.608714094271728E-12 1.015504540028645E-8 -9.687063201187626E-9 1.282778994060144E-8 -1.159983387198561E-10
i -2.735948721943333E-16 6.733634767483357E-16 1.995072029629818E-12 1.167316978904606E-10 -1.159983387198561E-10 1.742457075945386E-11

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

[ show close-approach data ]
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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