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100400 (1995 YX7)
Classification: Main-belt Asteroid          SPK-ID: 2100400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024189857829273 3.7733e-08  
a 2.366913172162833 7.0623e-09 au
q 1.887805008417381 9.1543e-08 au
i 4.768181528795742 3.1613e-06 deg
node 236.7017723430902 4.7976e-05 deg
peri 89.8466617829949 4.9197e-05 deg
M 24.88482234758446 8.5069e-06 deg
tp 2459108.560114063239
(2020-Sep-16.06011406)
3.1475e-05 TDB
period 1330.062094674612
3.64
5.9529e-06
1.63e-08
d
yr
n .2706640550402805 1.2114e-09 deg/d
Q 2.846021335908285 8.4919e-09 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      10712 days (29.33 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50526  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:09  

Additional Information
 Earth MOID = .881712 au 
 Jupiter MOID = 2.51346 au 
 T_jup = 3.515 
[ 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 16.41   n/a E2021B55  
rotation period rot_per 90.520 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

100400 (1995 YX7)          Discovered 1995-Dec-18 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1995 YX7 = 2002 SL53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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