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101498 (1998 XC7)
Classification: Main-belt Asteroid          SPK-ID: 2101498
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01142471580773772 4.8621e-08  
a 3.049089576131973 2.7803e-08 au
q 3.01425459425233 1.509e-07 au
i 2.810243415754679 5.9285e-06 deg
node 208.6612294600301 9.5497e-05 deg
peri 294.9499484534634 0.00029728 deg
M 290.7285917069451 0.0002793 deg
tp 2459374.701236251964
(2021-Jun-09.20123625)
0.0015087 TDB
period 1944.704869876496
5.32
2.6599e-05
7.282e-08
d
yr
n .1851180637105428 2.532e-09 deg/d
Q 3.083924558011616 2.8121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      9980 days (27.32 yr)  
   first obs. used      1992-09-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:21:11  

Additional Information
 Earth MOID = 2.02488 au 
 Jupiter MOID = 1.88804 au 
 T_jup = 3.236 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01019461218062337 5.4797e-08  
q 3.01627460219683 1.6983e-07 au
tp 2457525.625509192800
(2016-May-17.12550919)
0.0015101 TDB
node 208.7841640373051 9.5854e-05 deg
peri 312.6772060238414 0.00029727 deg
i 2.80313048004251 5.9231e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      9980 days (27.32 yr)  
   first obs. used      1992-09-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:21:11  

Additional Information
 Jupiter MOID = 1.88804 au 
 T_jup = 3.236 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.002747122499101E-15 -9.182398107748372E-15 2.677247580097022E-11 -7.665407601361347E-15 5.098781856881766E-12 -1.152154104098729E-15
q -9.182398107748372E-15 2.884163114863167E-14 -8.395944864623183E-11 2.498164335600282E-14 -1.601785467577508E-11 4.127276472194558E-15
tp 2.677247580097022E-11 -8.395944864623183E-11 2.280425086820471E-6 -2.382897642720145E-10 4.249372959392263E-7 4.102932485776184E-12
node -7.665407601361347E-15 2.498164335600282E-14 -2.382897642720145E-10 9.187899753012502E-9 -9.221499903176421E-9 -3.211607801448624E-12
peri 5.098781856881766E-12 -1.601785467577508E-11 4.249372959392263E-7 -9.221499903176421E-9 8.836934694453828E-8 3.889462978156624E-12
i -1.152154104098729E-15 4.127276472194558E-15 4.102932485776184E-12 -3.211607801448624E-12 3.889462978156624E-12 3.508287237291706E-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 15.5   n/a MPO453468  

101498 (1998 XC7)          Discovered 1998-Dec-08 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 XC7 = 2002 PZ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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