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268720 (2006 HX71)
Classification: Main-belt Asteroid          SPK-ID: 2268720
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07638816379516115 5.4014e-08  
a 3.07729019056428 3.6569e-08 au
q 2.842221643442214 1.6181e-07 au
i 5.492374680359273 6.3272e-06 deg
node 156.1926683188896 6.0703e-05 deg
peri 86.22823988103154 7.4248e-05 deg
M 207.954289647755 4.5732e-05 deg
tp 2459833.265599517733
(2022-Sep-10.76559952)
0.00025673 TDB
period 1971.746622327233
5.40
3.5146e-05
9.622e-08
d
yr
n .1825792401130606 3.2545e-09 deg/d
Q 3.312358737686347 3.9362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      8981 days (24.59 yr)  
   first obs. used      1995-04-23  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6036  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:40:51  

Additional Information
 Earth MOID = 1.83649 au 
 Jupiter MOID = 1.70738 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457259.5 (2015-Aug-25.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07908694575200434 5.3635e-08  
q 2.833079620929982 1.6148e-07 au
tp 2457861.979659382523
(2017-Apr-18.47965938)
0.00023631 TDB
node 156.2346282182588 6.0647e-05 deg
peri 86.34731795297606 7.3526e-05 deg
i 5.493955989708127 6.3319e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      8981 days (24.59 yr)  
   first obs. used      1995-04-23  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6036  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:40:51  

Additional Information
 Jupiter MOID = 1.70738 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.876714299525752E-15 -8.481097512710886E-15 -1.223126892082142E-12 -5.149310580541657E-15 -2.240851962256406E-13 1.356108125656338E-15
q -8.481097512710886E-15 2.607441048717781E-14 6.414504875766789E-12 1.666026147898981E-14 1.097937537355951E-12 -3.378542528270159E-15
tp -1.223126892082142E-12 6.414504875766789E-12 5.584347377220456E-8 3.367123305019161E-11 9.856974941445726E-9 3.166979394810715E-12
node -5.149310580541657E-15 1.666026147898981E-14 3.367123305019161E-11 3.67808477387112E-9 -3.65507972485268E-9 5.116619237942666E-11
peri -2.240851962256406E-13 1.097937537355951E-12 9.856974941445726E-9 -3.65507972485268E-9 5.406128954677259E-9 -5.042473401166786E-11
i 1.356108125656338E-15 -3.378542528270159E-15 3.166979394810715E-12 5.116619237942666E-11 -5.042473401166786E-11 4.009292745721071E-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 16.2   n/a MPO418426  

268720 (2006 HX71)          Discovered 2006-Apr-25 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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