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1440 Rostia (1937 TF)
Classification: Main-belt Asteroid          SPK-ID: 2001440
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882459326718243 3.2566e-08  
a 3.165434451164697 1.4989e-08 au
q 2.569554290593674 1.048e-07 au
i 2.268653735302578 3.7678e-06 deg
node 46.68706390118289 9.9562e-05 deg
peri 349.8882890260847 0.00010014 deg
M 271.0524038613483 1.1901e-05 deg
tp 2459508.753208215145
(2021-Oct-21.25320821)
7.0114e-05 TDB
period 2057.066889949857
5.63
1.4611e-05
4e-08
d
yr
n .1750064627255632 1.2431e-09 deg/d
Q 3.76131461173572 1.7811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2281  
   data-arc span      30352 days (83.10 yr)  
   first obs. used      1937-10-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51213  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:38:55  

Additional Information
 Earth MOID = 1.57678 au 
 Jupiter MOID = 1.66908 au 
 T_jup = 3.175 
[ 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 12.4   n/a MPO435709  
diameter diameter 15.299 km 0.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.448 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.083   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1440 Rostia (1937 TF)          Discovered 1937-Oct-11 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1937 TF = 1954 YA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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