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JPL Small-Body Database Browser
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645 Agrippina (A907 RP)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000645
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446797750294137 3.6229e-08  
a 3.214934995386127 1.5621e-08 au
q 2.749798923519473 1.1305e-07 au
i 7.035944493124755 5.1557e-06 deg
node .1270918610411503 3.4088e-05 deg
peri 84.77290760624258 3.8818e-05 deg
M 133.200068543912 1.7928e-05 deg
tp 2457821.461952788158
(2017-Mar-08.96195279)
0.00010397 TDB
period 2105.507152226472
5.76
1.5346e-05
4.202e-08
d
yr
n .1709801838570424 1.2462e-09 deg/d
Q 3.680071067252781 1.7882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2417  
   data-arc span      40867 days (111.89 yr)  
   first obs. used      1907-09-30  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44849  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:10:43  

Additional Information
 Earth MOID = 1.7773 au 
 Jupiter MOID = 1.60613 au 
 T_jup = 3.162 
[ 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 9.8   n/a MPO492757 IRAS observations used: 17
diameter diameter 28.916 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 32.6 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:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
geometric albedo albedo 0.213   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.871   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=3.86, mean=8.56, max.=14.61) deg.
U-B UB 0.412   0.074 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.41, mean=10.12, max.=14.61) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

645 Agrippina (A907 RP)          Discovered 1907-Sep-13 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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