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1255 Schilowa (1932 NC)
Classification: Main-belt Asteroid          SPK-ID: 2001255
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173858174302075 3.6275e-08  
a 3.142531269397342 1.3011e-08 au
q 2.596176520212738 1.1297e-07 au
i 8.547812653224341 3.7668e-06 deg
node 237.6159459410969 2.3901e-05 deg
peri 133.4323433840389 2.5824e-05 deg
M 193.6959122977517 1.1866e-05 deg
tp 2459940.479239755040
(2022-Dec-26.97923975)
7.0508e-05 TDB
period 2034.781772277744
5.57
1.2637e-05
3.46e-08
d
yr
n .1769231496491215 1.0987e-09 deg/d
Q 3.688886018581946 1.5273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3077  
   data-arc span      41874 days (114.64 yr)  
   first obs. used      1905-10-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4276  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:28:38  

Additional Information
 Earth MOID = 1.60602 au 
 Jupiter MOID = 1.84666 au 
 T_jup = 3.169 
[ show covariance matrix ]

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 10.3   n/a MPO253368  
diameter diameter 33.669 km 0.718 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 29.536 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.130   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1255 Schilowa (1932 NC)          Discovered 1932-Jul-08 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1932 NC = 1933 VB = A905 UC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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