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48422 Schrade (1988 VN7)
Classification: Main-belt Asteroid          SPK-ID: 2048422
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694582581248784 5.183e-08  
a 2.296151894476711 8.5124e-09 au
q 1.907049994048548 1.227e-07 au
i 8.178234622092031 4.0712e-06 deg
node 62.13789161933067 4.186e-05 deg
peri 328.0531684885399 4.4824e-05 deg
M 37.65704582511959 1.6162e-05 deg
tp 2458867.563850893786
(2020-Jan-19.06385089)
5.6815e-05 TDB
period 1270.864791159838
3.48
7.0671e-06
1.935e-08
d
yr
n .2832716765026206 1.5752e-09 deg/d
Q 2.685253794904874 9.9549e-09 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      14241 days (38.99 yr)  
   first obs. used      1981-10-25  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:37:28  

Additional Information
 Earth MOID = .918728 au 
 Jupiter MOID = 2.75073 au 
 T_jup = 3.562 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457263.5 (2015-Aug-29.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703675258496362 5.2162e-08  
q 1.904721683783315 1.2364e-07 au
tp 2457594.936067666533
(2016-Jul-25.43606767)
5.4164e-05 TDB
node 62.15907149340664 4.1877e-05 deg
peri 327.6358815186365 4.4772e-05 deg
i 8.178431629845123 4.0736e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      14241 days (38.99 yr)  
   first obs. used      1981-10-25  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:37:28  

Additional Information
 Jupiter MOID = 2.75073 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.720870237110732E-15 -6.441580149792586E-15 -1.435178703028657E-12 4.584510542900717E-14 -4.133275679791186E-13 -9.015809364327234E-15
q -6.441580149792586E-15 1.528755683204733E-14 3.384225543029038E-12 -1.070908585396197E-13 9.689506538495483E-13 2.1497771036758E-14
tp -1.435178703028657E-12 3.384225543029038E-12 2.933791670036529E-9 -2.981051294403141E-11 8.97845220209732E-10 9.894450151070042E-12
node 4.584510542900717E-14 -1.070908585396197E-13 -2.981051294403141E-11 1.753706961020632E-9 -1.743983830169999E-9 -5.314336641650291E-11
peri -4.133275679791186E-13 9.689506538495483E-13 8.97845220209732E-10 -1.743983830169999E-9 2.0045191031375E-9 5.53810550250376E-11
i -9.015809364327234E-15 2.1497771036758E-14 9.894450151070042E-12 -5.314336641650291E-11 5.53810550250376E-11 1.65944298340602E-11

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 MPO302335  
diameter diameter 1.913 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.401   0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48422 Schrade           Discovered 1988 Nov. 3 by F. Börngen at Tautenburg.
Engineer Hugo Schrade (1900-1974), employed by the firm Carl Zeiss Jena from 1929, became the highly esteemed head works manager during 1945-1966.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1988 VN7 = 1981 UJ26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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