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2968 Iliya (1978 QJ)
Classification: Mars-crossing Asteroid          SPK-ID: 2002968
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3113819695220352 3.8245e-08  
a 2.366471093481679 7.7108e-09 au
q 1.629594663576389 9.1824e-08 au
i 9.154825438558786 4.0554e-06 deg
node 274.2981333344675 2.4264e-05 deg
peri 34.35691485117769 2.4794e-05 deg
M 232.0226475407911 5.5038e-06 deg
tp 2459673.194831174354
(2022-Apr-03.69483117)
2.1122e-05 TDB
period 1329.689479839856
3.64
6.4989e-06
1.779e-08
d
yr
n .2707399024043999 1.3232e-09 deg/d
Q 3.103347523386968 1.0112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      26057 days (71.34 yr)  
   first obs. used      1949-11-19  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:39:01  

Additional Information
 Earth MOID = .622013 au 
 Jupiter MOID = 2.19441 au 
 T_jup = 3.464 
[ 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 14.89   n/a E2021B10  
diameter diameter 4.456 km 0.961 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.129   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

2968 Iliya (1978 QJ)          Discovered 1978-Aug-31 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1978 QJ = 1981 EZ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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