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100401 (1995 YS17)
Classification: Main-belt Asteroid          SPK-ID: 2100401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695263459730823 4.2894e-08  
a 3.007341495862394 2.2894e-08 au
q 2.497517880975618 1.3859e-07 au
i 3.202629892305536 5.014e-06 deg
node 135.5756708558259 6.9264e-05 deg
peri 270.573790919269 7.2086e-05 deg
M 305.7722334573571 2.4392e-05 deg
tp 2459487.440442692774
(2021-Sep-29.94044269)
0.00013153 TDB
period 1904.901602174012
5.22
2.1752e-05
5.955e-08
d
yr
n .1889861395408256 2.1581e-09 deg/d
Q 3.517165110749168 2.6775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      465  
   data-arc span      9084 days (24.87 yr)  
   first obs. used      1995-12-22  
   last obs. used      2020-11-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:00  

Additional Information
 Earth MOID = 1.50874 au 
 Jupiter MOID = 1.8839 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457223.5 (2015-Jul-20.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753344033169785 4.3561e-08  
q 2.477006257813131 1.4134e-07 au
tp 2457577.875752697206
(2016-Jul-08.37575270)
0.00010981 TDB
node 135.8760403698249 6.9796e-05 deg
peri 269.4881376033319 7.2303e-05 deg
i 3.192527277591298 4.9997e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      465  
   data-arc span      9084 days (24.87 yr)  
   first obs. used      1995-12-22  
   last obs. used      2020-11-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:00  

Additional Information
 Jupiter MOID = 1.8839 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.897535740804914E-15 -6.116181158670271E-15 -2.225133703551866E-12 6.960826721522754E-15 -3.143147077053517E-13 1.202231977819931E-16
q -6.116181158670271E-15 1.997577599118198E-14 8.108644787480338E-12 -2.351011301928967E-14 1.169745522899323E-12 -8.291994757562257E-17
tp -2.225133703551866E-12 8.108644787480338E-12 1.205714711118205E-8 -2.046363188887804E-11 2.078352674412832E-9 2.220413967225245E-12
node 6.960826721522754E-15 -2.351011301928967E-14 -2.046363188887804E-11 4.871479582131025E-9 -4.866910968418745E-9 -4.205304098752035E-12
peri -3.143147077053517E-13 1.169745522899323E-12 2.078352674412832E-9 -4.866910968418745E-9 5.227791250042913E-9 4.590199444690598E-12
i 1.202231977819931E-16 -8.291994757562257E-17 2.220413967225245E-12 -4.205304098752035E-12 4.590199444690598E-12 2.499651803767398E-11

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 15.72   n/a E2021B55  

100401 (1995 YS17)          Discovered 1995-Dec-22 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1995 YS17 = 2000 SU330 = 2002 CE203 = 2002 CO312 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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