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JPL Small-Body Database Browser
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15295 Tante Riek (1991 VA9)
Classification: Main-belt Asteroid          SPK-ID: 2015295
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06146154151451608 4.8323e-08  
a 2.350646734321 9.2041e-09 au
q 2.206172362473568 1.135e-07 au
i 7.609047593209301 4.7722e-06 deg
node 59.6159909591982 3.9389e-05 deg
peri 105.1727758324547 5.7005e-05 deg
M 216.8720850501618 3.9037e-05 deg
tp 2459523.860956150834
(2021-Nov-05.36095615)
0.00014234 TDB
period 1316.374547063946
3.60
7.7315e-06
2.117e-08
d
yr
n .2734783962535187 1.6062e-09 deg/d
Q 2.495121106168432 9.7698e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      9734 days (26.65 yr)  
   first obs. used      1991-10-17  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57511  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:30:01  

Additional Information
 Earth MOID = 1.22605 au 
 Jupiter MOID = 2.4896 au 
 T_jup = 3.543 
[ 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 14.9   n/a MPO492922  
diameter diameter 2.963 km 1.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15295 Tante Riek           Discovered 1991 Nov. 4 by Spacewatch at Kitt Peak.
Helena T. Kuipers-Rietberg ("Tante Riek", 1893-1944) was one of the founders of the Dutch resistance organization "Landelijke organisatie voor hulp aan Onderduikers", which helped to hide Jews and escaped prisoners of war during World War II. She was betrayed and died in the concentration camp Ravensbrück.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 1991 VA9 = 1998 SM127 = 2000 FH11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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