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20919 (6606 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2020919
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04176315999518796 4.4717e-08  
a 2.329285253997639 8.2875e-09 au
q 2.232006941260504 1.0501e-07 au
i 6.641912716753986 5.9197e-06 deg
node 28.84668132777447 3.4574e-05 deg
peri 107.387588465323 7.5532e-05 deg
M 155.5003882921571 6.6665e-05 deg
tp 2458439.631021616223
(2018-Nov-17.13102162)
0.00024019 TDB
period 1298.471562905695
3.56
6.9299e-06
1.897e-08
d
yr
n .2772490444029431 1.4797e-09 deg/d
Q 2.426563566734775 8.6336e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      21816 days (59.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:47:13  

Additional Information
 Earth MOID = 1.25457 au 
 Jupiter MOID = 2.56502 au 
 T_jup = 3.562 
[ 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 14.8   n/a MPO435894  
diameter diameter 2.153 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20919 (6606 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 6606 P-L = 1998 HH94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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