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10250 Hellahaasse (1252 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2010250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0386199162756818 3.9271e-08  
a 2.336660514081393 7.1445e-09 au
q 2.246418880662878 9.2842e-08 au
i 6.548606448296483 4.3759e-06 deg
node 198.1913550383936 2.5241e-05 deg
peri 343.715153674436 4.8223e-05 deg
M 335.4388010007741 4.0564e-05 deg
tp 2459289.510024287712
(2021-Mar-16.01002429)
0.00014699 TDB
period 1304.643504764822
3.57
5.9836e-06
1.638e-08
d
yr
n .2759374485713585 1.2656e-09 deg/d
Q 2.426902147499908 7.4205e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1943  
   data-arc span      18263 days (50.00 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:34:39  

Additional Information
 Earth MOID = 1.24735 au 
 Jupiter MOID = 2.53114 au 
 T_jup = 3.557 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.49   n/a MPCxxxxx  
diameter diameter 3.506 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10250 Hellahaasse           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Hella S. Haasse (b. 1918) is one of the greatest Dutch novelists. She wrote over 25 novels, many of them historical, and they have been translated into numerous languages. Some of her most widely read novels, such as Oeroeg, Heren van de thee and Sleuteloog, are set in the Dutch East Indies, where she grew up.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

Alternate Designations
 1252 T-1 = 1997 RK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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