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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1741786323213568 1.9797e-08  
a 3.142235024364769 1.1265e-08 au
q 2.594924825388648 6.6008e-08 au
i 8.54860279790819 6.7344e-07 deg
node 237.6132278688016 4.8968e-06 deg
peri 133.3928647090935 5.99e-06 deg
M 263.8432084005489 5.897e-06 deg
tp 2459939.917834937180
(2022-Dec-26.41783494)
3.4911e-05 TDB
period 2034.494052092536
5.57
1.0941e-05
2.995e-08
d
yr
n .1769481702980304 9.5157e-10 deg/d
Q 3.689545223340889 1.3227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3462  
   data-arc span      42249 days (115.67 yr)  
   first obs. used      1905-10-24  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41504  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:09:30  

Additional Information
 Earth MOID = 1.604 au 
 Jupiter MOID = 1.84838 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 10.41   n/a MPCxxxxx  
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. 2020-October); 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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