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74377 (1998 XY7)
Classification: Main-belt Asteroid          SPK-ID: 2074377
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107720619308092 4.5427e-08  
a 2.661058670879803 1.3678e-08 au
q 2.374407782837462 1.2349e-07 au
i 3.757071262820714 4.0527e-06 deg
node 67.12839910130423 7.7706e-05 deg
peri 246.3375201563354 8.1869e-05 deg
M 65.97617495247785 2.2723e-05 deg
tp 2458709.920659176433
(2019-Aug-14.42065918)
0.00010065 TDB
period 1585.550583552818
4.34
1.2225e-05
3.347e-08
d
yr
n .2270504667175808 1.7506e-09 deg/d
Q 2.947709558922143 1.5151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      7633 days (20.90 yr)  
   first obs. used      1998-12-09  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60499  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:46:22  

Additional Information
 Earth MOID = 1.36342 au 
 Jupiter MOID = 2.28539 au 
 T_jup = 3.374 
[ 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 15.5   n/a MPO347992  

74377 (1998 XY7)          Discovered 1998-Dec-09 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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