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19868 (4072 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2019868
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .227098090747182 3.2635e-08  
a 2.344749565311416 8.5262e-09 au
q 1.812261415748908 7.9151e-08 au
i 2.605267502011022 3.6546e-06 deg
node 235.5609285885002 8.5983e-05 deg
peri 19.75723515720086 8.6742e-05 deg
M 2.506491676560631 1.5317e-05 deg
tp 2459191.369240813630
(2020-Dec-07.86924081)
5.5763e-05 TDB
period 1311.423986695019
3.59
7.1531e-06
1.958e-08
d
yr
n .2745107636068583 1.4973e-09 deg/d
Q 2.877237714873923 1.0462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1613  
   data-arc span      21811 days (59.72 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:06:07  

Additional Information
 Earth MOID = .79613 au 
 Jupiter MOID = 2.17787 au 
 T_jup = 3.525 
[ 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 14.77   n/a E2021B10  
diameter diameter 2.724 km 0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19868 (4072 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4072 P-L = 1992 PH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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