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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882459306530218 3.4162e-08  
a 3.16543445034698 1.5386e-08 au
q 2.569554296320276 1.0897e-07 au
i 2.26865484332016 3.9833e-06 deg
node 46.68705405230465 0.00010028 deg
peri 349.8882990444358 0.00010085 deg
M 271.0524039603726 1.1903e-05 deg
tp 2459508.753207452369
(2021-Oct-21.25320745)
7.0143e-05 TDB
period 2057.066889152763
5.63
1.4998e-05
4.106e-08
d
yr
n .1750064627933766 1.276e-09 deg/d
Q 3.761314604373684 1.8282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2185  
   data-arc span      30250 days (82.82 yr)  
   first obs. used      1937-10-11  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:34:18  

Additional Information
 Earth MOID = 1.57678 au 
 Jupiter MOID = 1.66908 au 
 T_jup = 3.175 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456411.5 (2013-Apr-29.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951825691501053 3.4242e-08  
q 2.537141815712606 1.0974e-07 au
tp 2455413.151262558608
(2010-Aug-04.65126256)
5.593e-05 TDB
node 46.87097218573003 9.9422e-05 deg
peri 349.8352261241162 9.9943e-05 deg
i 2.284145433810929 4.0054e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2185  
   data-arc span      30250 days (82.82 yr)  
   first obs. used      1937-10-11  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:34:18  

Additional Information
 Jupiter MOID = 1.66908 au 
 T_jup = 3.175 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.172505848796974E-15 -3.73630428888169E-15 -2.754499404706593E-13 -3.818210787924447E-15 -5.430938538819883E-14 -4.507866638969702E-17
q -3.73630428888169E-15 1.204338144321499E-14 9.694506021099691E-13 1.452455654540387E-14 2.006806130655243E-13 9.92382978748253E-17
tp -2.754499404706593E-13 9.694506021099691E-13 3.128207372882444E-9 2.500642317558243E-13 5.902932273557101E-10 -5.840316417494835E-14
node -3.818210787924447E-15 1.452455654540387E-14 2.500642317558243E-13 9.884774825885416E-9 -9.876199551464576E-9 -3.599759677615289E-11
peri -5.430938538819883E-14 2.006806130655243E-13 5.902932273557101E-10 -9.876199551464576E-9 9.988524103292544E-9 3.594747823245697E-11
i -4.507866638969702E-17 9.92382978748253E-17 -5.840316417494835E-14 -3.599759677615289E-11 3.594747823245697E-11 1.604308836644064E-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 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. 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:
[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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