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85195 von Helfta (1991 TW2)
Classification: Main-belt Asteroid          SPK-ID: 2085195
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2657860061361482 8.1136e-08  
a 2.300690563757688 4.7367e-09 au
q 1.689199207461409 1.8577e-07 au
i 2.430353623643283 4.1028e-06 deg
node 250.9419002463687 0.00010612 deg
peri 136.2533163625019 0.0001065 deg
M 314.4667003880343 7.725e-06 deg
tp 2458761.717568190502
2.7342e-05 TDB
period 1274.634718836163
n .2824338570729557 8.7222e-10 deg/d
Q 2.912181920053968 5.9957e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      10300 days (28.20 yr)  
   first obs. used      1991-09-16  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49648  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:15:12  

Additional Information
 Earth MOID = .694218 au 
 Jupiter MOID = 2.54251 au 
 T_jup = 3.543 
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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 15.4   n/a MPO449529  
diameter diameter 2.566 km 0.623 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.8412 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005)]
geometric albedo albedo 0.204   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

85195 von Helfta           Discovered 1991 Oct. 7 by F. Börngen and L. D. Schmadel at Tautenburg.
Gertrud von Helfta (1256-1302), "the Great", lived in the nunnery of Helfta near Eisleben. She is one of the greatest German mystics. Her popular poetic writings Legatus Divinae Pietatis and Exercitia Spiritualia represent her religious experiences and the theological view of her time.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

Alternate Designations
 1991 TW2 = 1998 UO33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Dec-14 00:32 UT
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