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100399 (1995 YM7)
Classification: Main-belt Asteroid          SPK-ID: 2100399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03068201750956443 4.2571e-08  
a 2.938797453155469 2.4938e-08 au
q 2.848629218240689 1.2634e-07 au
i 3.363917940304555 5.4056e-06 deg
node 155.3181648989704 7.7666e-05 deg
peri 215.1170409685939 0.00011701 deg
M .9210790107203523 8.6638e-05 deg
tp 2458995.791882487040
(2020-May-26.29188249)
0.00044286 TDB
period 1840.148657106004
5.04
2.3422e-05
6.413e-08
d
yr
n .1956363680780936 2.4902e-09 deg/d
Q 3.028965688070248 2.5703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8208 days (22.47 yr)  
   first obs. used      1995-12-16  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58358  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:51:52  

Additional Information
 Earth MOID = 1.84751 au 
 Jupiter MOID = 2.10658 au 
 T_jup = 3.270 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456464.5 (2013-Jun-21.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03384132708917047 4.3792e-08  
q 2.840709757208715 1.303e-07 au
tp 2457134.614575271747
(2015-Apr-22.11457527)
0.0003926 TDB
node 155.4831020273776 7.7587e-05 deg
peri 211.264557630936 0.00010951 deg
i 3.364117315967638 5.4076e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8208 days (22.47 yr)  
   first obs. used      1995-12-16  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58358  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:51:52  

Additional Information
 Jupiter MOID = 2.10658 au 
 T_jup = 3.270 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.917779151110369E-15 -5.607469878856324E-15 -4.127805893874962E-12 2.282414972190181E-15 -8.475849694875979E-13 -7.965436386698095E-16
q -5.607469878856324E-15 1.697753217299427E-14 1.131954096346996E-11 -6.424012833529937E-15 2.291465574659253E-12 2.628522905245478E-15
tp -4.127805893874962E-12 1.131954096346996E-11 1.541374869991393E-7 3.925686188866572E-11 3.035528670444082E-8 -4.514847908238122E-12
node 2.282414972190181E-15 -6.424012833529937E-15 3.925686188866572E-11 6.019769910590857E-9 -6.001543126487058E-9 -7.170311746690506E-11
peri -8.475849694875979E-13 2.291465574659253E-12 3.035528670444082E-8 -6.001543126487058E-9 1.199207081264769E-8 7.068144856128259E-11
i -7.965436386698095E-16 2.628522905245478E-15 -4.514847908238122E-12 -7.170311746690506E-11 7.068144856128259E-11 2.92417543968001E-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 15.6   n/a MPO449610  

100399 (1995 YM7)          Discovered 1995-Dec-16 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1995 YM7 = 2002 CS131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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