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JPL Small-Body Database Browser
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1451 Grano (1938 DT)
Classification: Main-belt Asteroid          SPK-ID: 2001451
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .117367241931178 3.2608e-08  
a 2.203438045150383 6.5236e-09 au
q 1.944826599024856 7.1853e-08 au
i 5.108152128713703 3.9922e-06 deg
node 175.2788395097969 4.2015e-05 deg
peri 52.01905398992143 4.6225e-05 deg
M 241.5711065450999 2.1544e-05 deg
tp 2458993.511142285132
(2020-May-24.01114229)
7.2239e-05 TDB
period 1194.6747714613
3.27
5.3055e-06
1.453e-08
d
yr
n .301337241398055 1.3382e-09 deg/d
Q 2.46204949127591 7.2893e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2223  
   data-arc span      21204 days (58.05 yr)  
   first obs. used      1961-03-17  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5004  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:09:32  

Additional Information
 Earth MOID = .940566 au 
 Jupiter MOID = 2.51957 au 
 T_jup = 3.649 
[ 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 13.1   n/a MPO425814  
diameter diameter 6.170 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 138.00 h n/a LCDB (Rev. 2019-January); 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:
[Stephens, R.D. (2010) Minor Planet Bull. 37, 159-161.]
geometric albedo albedo 0.429   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1451 Grano (1938 DT)          Discovered 1938-Feb-22 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 DT = 1976 WK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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