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19920 (1978 NF)
Classification: Main-belt Asteroid          SPK-ID: 2019920
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1672712342493504 3.9035e-08  
a 2.551418306635847 9.7946e-09 au
q 2.124639417398481 9.8302e-08 au
i 14.39338150838464 3.9014e-06 deg
node 111.4916871894476 1.7829e-05 deg
peri 193.5909463448938 2.205e-05 deg
M 142.9925175989517 1.3833e-05 deg
tp 2458609.235588083574
(2019-May-05.73558808)
5.6918e-05 TDB
period 1488.575709163357
4.08
8.5717e-06
2.347e-08
d
yr
n .2418419149149862 1.3926e-09 deg/d
Q 2.978197195873213 1.1433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1883  
   data-arc span      15565 days (42.61 yr)  
   first obs. used      1978-07-10  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48267  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:09:12  

Additional Information
 Earth MOID = 1.10954 au 
 Jupiter MOID = 2.26251 au 
 T_jup = 3.377 
[ 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 14.2   n/a MPO452452  
diameter diameter 3.365 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.430   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19920 (1978 NF)          Discovered 1978-Jul-10 by Helin, E. F., Shoemaker, E. M. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 NF = 1998 KL50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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