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19169 (1991 FD)
Classification: Main-belt Asteroid          SPK-ID: 2019169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791569202676375 4.3679e-08  
a 2.348290426818862 1.1e-08 au
q 1.927577946056019 1.0305e-07 au
i 24.86902237232064 5.1729e-06 deg
node 167.6500233321999 8.7174e-06 deg
peri 359.0060272293067 1.3622e-05 deg
M 55.95404583820358 1.017e-05 deg
tp 2458796.206225787367
(2019-Nov-08.70622579)
3.6843e-05 TDB
period 1314.395726257442
3.60
9.2357e-06
2.529e-08
d
yr
n .2738901175714026 1.9245e-09 deg/d
Q 2.769002907581705 1.2971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1411  
   data-arc span      10665 days (29.20 yr)  
   first obs. used      1991-02-16  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:58:12  

Additional Information
 Earth MOID = .934678 au 
 Jupiter MOID = 2.20375 au 
 T_jup = 3.415 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO365482  
diameter diameter 3.298 km 0.420 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.274   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

19169 (1991 FD)          Discovered 1991-Mar-17 by Helin, E. F. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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