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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1173715184148407 3.2289e-08  
a 2.20314370592368 6.1007e-09 au
q 1.944557383873319 7.1368e-08 au
i 5.108528833194835 3.9822e-06 deg
node 175.2734740870903 4.106e-05 deg
peri 52.13660417676873 4.4999e-05 deg
M 2.016828358425425 2.0327e-05 deg
tp 2458993.808413373622
(2020-May-24.30841337)
6.7432e-05 TDB
period 1194.435399240869
3.27
4.9612e-06
1.358e-08
d
yr
n .3013976312396638 1.2519e-09 deg/d
Q 2.461730027974042 6.8167e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2399  
   data-arc span      21507 days (58.88 yr)  
   first obs. used      1961-03-17  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:55:13  

Additional Information
 Earth MOID = .940235 au 
 Jupiter MOID = 2.5193 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-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:
[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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1970-Jul-20 23:53 < 00:01 Iris 0.0189870320758512 0.0189848227377454 0.0189892416186715 7.23499806826723 7.23499802641896 2440788.495192423 0.145049301149288 150.581862620544 31.8029396735682 44.2293715607805 63734.6331764418 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:55:27 2020-Feb-22 15:55

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