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216564 (2001 XX227)
Classification: Main-belt Asteroid          SPK-ID: 2216564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05219260477639898 5.7596e-08  
a 2.765183701817358 1.6683e-08 au
q 2.620861561734265 1.5821e-07 au
i 5.098808225342829 4.4653e-06 deg
node 295.7475059967684 5.9677e-05 deg
peri 69.1333274072918 7.2903e-05 deg
M 154.2671683169132 4.12e-05 deg
tp 2458676.793513949751
(2019-Jul-12.29351395)
0.00019128 TDB
period 1679.517021054206
4.60
1.5199e-05
4.161e-08
d
yr
n .2143473364586884 1.9398e-09 deg/d
Q 2.909505841900451 1.7554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      10766 days (29.48 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:21  

Additional Information
 Earth MOID = 1.62235 au 
 Jupiter MOID = 2.36293 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457166.5 (2015-May-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05266717298965133 5.8476e-08  
q 2.618420673911714 1.6086e-07 au
tp 2456984.019563326028
(2014-Nov-22.51956333)
0.00018415 TDB
node 295.9671330243239 5.9652e-05 deg
peri 66.08130671193682 7.2148e-05 deg
i 5.100103827652206 4.4706e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      10766 days (29.48 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:21  

Additional Information
 Jupiter MOID = 2.36293 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.419453052266971E-15 -9.361646635842313E-15 -2.031215176621272E-12 -1.059792058844481E-14 -5.330727350720079E-13 -3.957384669862309E-15
q -9.361646635842313E-15 2.587498725027399E-14 5.848284100178694E-12 2.908742398902721E-14 1.525794063485639E-12 1.141708273192466E-14
tp -2.031215176621272E-12 5.848284100178694E-12 3.390978942428171E-8 -6.469056374968399E-12 7.508069802603082E-9 2.299178570455831E-13
node -1.059792058844481E-14 2.908742398902721E-14 -6.469056374968399E-12 3.558407820217499E-9 -3.54527143688305E-9 7.744354302541222E-11
peri -5.330727350720079E-13 1.525794063485639E-12 7.508069802603082E-9 -3.54527143688305E-9 5.205391973442758E-9 -7.698490889666725E-11
i -3.957384669862309E-15 1.141708273192466E-14 2.299178570455831E-13 7.744354302541222E-11 -7.698490889666725E-11 1.998591461916472E-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 16.15   n/a MPCxxxxx  

216564 (2001 XX227)          Discovered 2001-Dec-15 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1989-Dec-18 19:15 00:05 Iris 0.0402401550503588 0.0402369401502722 0.0402433704394412 2.48105175437319 2.48105169679241 2447879.302210847 4.89354184001866 287.781463653283 61.4829999351388 -58.2925567281487 83900.3517028494 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:22 2021-Apr-13 23:55
1998-Dec-28 18:29 < 00:01 Thisb 0.0274202098915234 0.0274156353458327 0.027424784480729 2.65734349667683 2.65734340310259 2451176.269960124 0.897917060523887 234.886200145934 66.5606706141666 -14.6595909210247 22963.7415176804 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:22 2021-Apr-13 23:55
2003-Aug-10 10:51 < 00:01 Thisb 0.0349312690478384 0.0349278591382094 0.034934678963996 2.31750897667584 2.31750889245124 2452861.952369386 0.884992786554332 171.620489195779 66.3622857171703 9.25973106026959 32559.8255736811 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:22 2021-Apr-13 23:55
2194-Aug-06 07:48 00:02 Thisb 0.0428477974404674 0.0427997052650884 0.0428959414364956 2.32623068379428 2.32623061538839 2522619.824750149 2.32085321895955 3351.23911546593 59.2788776552043 44.4115752478883 75559.2484948254 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:22 2021-Apr-13 23:55
2199-Mar-14 23:27 00:02 Thisb 0.0376655475886314 0.0376255255300889 0.0377056520086028 2.40256610174782 2.4025660264027 2524301.476940467 2.35117204273518 3415.60966811726 59.5192299220568 54.3009495075014 76768.0895555725 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:22 2021-Apr-13 23:55

Alternate Designations
 2001 XX227 = 2005 QA172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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