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39857 (1998 DA5)
Classification: Main-belt Asteroid          SPK-ID: 2039857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1244093639900409 4.241e-08  
a 2.327067140960016 9.0513e-09 au
q 2.037558197991057 9.8694e-08 au
i 4.374024763580641 3.6136e-06 deg
node 130.7981938339543 5.9967e-05 deg
peri 46.84205741115208 6.1497e-05 deg
M 132.0647422600695 1.4682e-05 deg
tp 2458724.840489128943
(2019-Aug-29.34048913)
5.2228e-05 TDB
period 1296.617257438552
3.55
7.5649e-06
2.071e-08
d
yr
n .2776455410682831 1.6199e-09 deg/d
Q 2.616576083928974 1.0177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1019  
   data-arc span      11247 days (30.79 yr)  
   first obs. used      1989-10-08  
   last obs. used      2020-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:19:23  

Additional Information
 Earth MOID = 1.04429 au 
 Jupiter MOID = 2.34594 au 
 T_jup = 3.559 
[ 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 15.49   n/a E2021B10  

39857 (1998 DA5)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DA5 = 1989 TM3 = 1999 OM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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