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187099 (2005 QD21)
Classification: Main-belt Asteroid          SPK-ID: 2187099
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078975758799356 4.2582e-08  
a 2.355074810258326 1.1435e-08 au
q 1.865460466189721 1.0334e-07 au
i 8.388933898294471 4.42e-06 deg
node 146.1112756753704 4.2092e-05 deg
peri 173.0454625591435 4.5231e-05 deg
M 98.06204469376495 1.7777e-05 deg
tp 2458840.913042187072
(2019-Dec-23.41304219)
6.3877e-05 TDB
period 1320.095916997385
3.61
9.6142e-06
2.632e-08
d
yr
n .272707456605756 1.9861e-09 deg/d
Q 2.844689154326931 1.3812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      2001-06-17  
   last obs. used      2021-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:00  

Additional Information
 Earth MOID = .850912 au 
 Jupiter MOID = 2.47859 au 
 T_jup = 3.511 
[ show covariance matrix ]

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 17.41   n/a MPCxxxxx  

187099 (2005 QD21)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ 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
2197-Jul-04 09:53 00:01 Juno 0.0369809484513909 0.0369325141527691 0.0370294100980509 7.30444833037874 7.30444828534059 2523682.911693747 1.14316814430477 2889.57337974565 73.9069498377397 -33.3068614924483 41121.9078758546 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:01 2021-Apr-13 21:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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