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120757 (1997 YS7)
Classification: Main-belt Asteroid          SPK-ID: 2120757
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168887041716989 3.8553e-08  
a 2.405450819165676 1.2179e-08 au
q 1.999201346321077 9.0674e-08 au
i 3.095593907567669 5.1341e-06 deg
node 111.2754174181654 8.7613e-05 deg
peri 122.0833182771362 8.9315e-05 deg
M 254.3261573253446 1.9075e-05 deg
tp 2459400.498303329449
(2021-Jul-04.99830333)
7.3744e-05 TDB
period 1362.677702957594
3.73
1.0349e-05
2.833e-08
d
yr
n .2641857272769972 2.0063e-09 deg/d
Q 2.811700292010275 1.4235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      10500 days (28.75 yr)  
   first obs. used      1991-03-08  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58298  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:02:14  

Additional Information
 Earth MOID = .99012 au 
 Jupiter MOID = 2.18574 au 
 T_jup = 3.502 
[ 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 16.3   n/a MPO453678  

120757 (1997 YS7)          Discovered 1997-Dec-21 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 YS7 = 2002 CJ75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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