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227170 (2005 QQ38)
Classification: Main-belt Asteroid          SPK-ID: 2227170
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 .1450762635065074 5.272e-08  
a 2.391132074341721 1.1976e-08 au
q 2.04423556744566 1.2456e-07 au
i 4.688766631946808 4.408e-06 deg
node 137.3548262684676 6.246e-05 deg
peri 237.743073253225 6.4159e-05 deg
M 20.18693563392715 1.2973e-05 deg
tp 2459124.769352168987
(2020-Oct-02.26935217)
4.8796e-05 TDB
period 1350.528565283839
3.70
1.0146e-05
2.778e-08
d
yr
n .266562299572197 2.0025e-09 deg/d
Q 2.738028581237783 1.3713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      5708 days (15.63 yr)  
   first obs. used      2005-06-17  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:42  

Additional Information
 Earth MOID = 1.0479 au 
 Jupiter MOID = 2.73185 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457923.5 (2017-Jun-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146610410655279 5.2795e-08  
q 2.040508316845946 1.2499e-07 au
tp 2457774.091908357082
(2017-Jan-20.59190836)
5.1182e-05 TDB
node 137.4178188461548 6.2547e-05 deg
peri 237.7145984875079 6.419e-05 deg
i 4.686230378863439 4.4065e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      5708 days (15.63 yr)  
   first obs. used      2005-06-17  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:42  

Additional Information
 Jupiter MOID = 2.73185 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.787352044212002E-15 -6.577575987962049E-15 -2.316936888947458E-13 1.89463269198255E-14 -5.160183196175019E-14 -4.759222320308785E-15
q -6.577575987962049E-15 1.562289861824873E-14 3.393978983149923E-13 -4.409981073657186E-14 6.521760002541516E-14 1.141450409385916E-14
tp -2.316936888947458E-13 3.393978983149923E-13 2.619568958427491E-9 4.403371037821842E-12 7.67123355553867E-10 5.778244287262028E-13
node 1.89463269198255E-14 -4.409981073657186E-14 4.403371037821842E-12 3.91207618268224E-9 -3.897210309669741E-9 1.090134628685439E-10
peri -5.160183196175019E-14 6.521760002541516E-14 7.67123355553867E-10 -3.897210309669741E-9 4.120348446101624E-9 -1.085705123195526E-10
i -4.759222320308785E-15 1.141450409385916E-14 5.778244287262028E-13 1.090134628685439E-10 -1.085705123195526E-10 1.941682090355656E-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 17.22   n/a E2021B55  

227170 (2005 QQ38)          Discovered 2005-Aug-25 by CINEOS at Campo Imperatore
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ 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
2101-Jun-04 15:09 00:04 Thisb 0.0397362641910611 0.0397216072197242 0.0397509948462651 3.816718074949 3.81671802999197 2488589.130969147 3.89553209688748 2800.97496674222 52.6616418316066 74.8846659003225 108908.423668466 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 00:38:43 2021-Apr-14 00:38
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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