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9973 Szpilman (1993 NB2)
Classification: Main-belt Asteroid          SPK-ID: 2009973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720545922916344 1.4991e-07  
a 2.530711247960954 1.0138e-08 au
q 2.095290755985179 3.8138e-07 au
i 1.494086418400343 3.1899e-06 deg
node 296.9245858212981 0.00018973 deg
peri 104.4584168182141 0.00018985 deg
M 153.2022744066952 1.0166e-05 deg
tp 2458374.715168638935
(2018-Sep-13.21516864)
4.0929e-05 TDB
period 1470.490827648824
4.03
8.8359e-06
2.419e-08
d
yr
n .2448162159403647 1.4711e-09 deg/d
Q 2.966131739936729 1.1882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1449  
   data-arc span      25862 days (70.81 yr)  
   first obs. used      1949-08-21  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:02:39  

Additional Information
 Earth MOID = 1.10425 au 
 Jupiter MOID = 2.44095 au 
 T_jup = 3.430 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457227.5 (2015-Jul-24.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170230604876769 1.4933e-07  
q 2.101852634135041 3.7929e-07 au
tp 2456903.373365294105
(2014-Sep-02.87336529)
4.0898e-05 TDB
node 297.1143005934701 0.00018936 deg
peri 104.4626274341022 0.00018949 deg
i 1.49548870948874 3.1893e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1449  
   data-arc span      25862 days (70.81 yr)  
   first obs. used      1949-08-21  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:02:39  

Additional Information
 Jupiter MOID = 2.44095 au 
 T_jup = 3.430 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.230033409720392E-14 -5.662789750935649E-14 2.612730949933416E-12 -6.599871429985473E-13 1.51182614470271E-14 4.251732430093327E-15
q -5.662789750935649E-14 1.438644063492508E-13 -6.638065131468345E-12 1.677961489611003E-12 -3.807904112509659E-14 -1.077463515667435E-14
tp 2.612730949933416E-12 -6.638065131468345E-12 1.672609566357697E-9 -8.249440632496963E-11 3.451514191584062E-10 8.977674670875661E-14
node -6.599871429985473E-13 1.677961489611003E-12 -8.249440632496963E-11 3.585577927894766E-8 -3.582544857347737E-8 -9.461801154423452E-11
peri 1.51182614470271E-14 -3.807904112509659E-14 3.451514191584062E-10 -3.582544857347737E-8 3.590494260326642E-8 9.436617592665923E-11
i 4.251732430093327E-15 -1.077463515667435E-14 8.977674670875661E-14 -9.461801154423452E-11 9.436617592665923E-11 1.017147947040614E-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 14.3   n/a MPO452310  

9973 Szpilman           Discovered 1993 July 12 by E. W. Elst at the European Southern Observatory.
Wladyslaw Szpilman (1912-2000) was a Polish pianist who managed to survive in the Warsaw ghetto. In his memoirs Robinson Warszawski he told how he played the last live music on Polish free radio---Chopin's Nocturne in C#---before the German artillery destroyed the transmitter.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

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Alternate Designations
 1993 NB2 = 1949 QJ = 1979 BV2 = 1991 AM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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