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3212 Agricola (1938 DH2)
Classification: Main-belt Asteroid          SPK-ID: 2003212
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1509897723126523 3.5096e-08  
a 2.257359209931819 7.552e-09 au
q 1.916521056796345 7.8399e-08 au
i 7.810687485295241 3.5091e-06 deg
node 109.9586648033209 2.819e-05 deg
peri 35.24249358224155 3.0487e-05 deg
M 110.6987311644016 1.1753e-05 deg
tp 2458619.574909994016
(2019-May-16.07490999)
3.9973e-05 TDB
period 1238.794979488017
3.39
6.2166e-06
1.702e-08
d
yr
n .2906049878800645 1.4583e-09 deg/d
Q 2.598197363067293 8.6923e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2050  
   data-arc span      30215 days (82.72 yr)  
   first obs. used      1938-02-19  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46265  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:10:55  

Additional Information
 Earth MOID = .935097 au 
 Jupiter MOID = 2.42634 au 
 T_jup = 3.595 
[ 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 13.6   n/a MPO365284  
diameter diameter 4.442 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.391   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3212 Agricola (1938 DH2)          Discovered 1938-Feb-19 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 DH2 = 1982 BB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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