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85649 (1998 QZ1)
Classification: Main-belt Asteroid          SPK-ID: 2085649
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2303231397575342 4.0739e-08  
a 2.225690393641462 7.0539e-09 au
q 1.713062394049779 9.088e-08 au
i 3.223440375676273 4.4564e-06 deg
node 187.2200944353175 5.8838e-05 deg
peri 175.1132149678525 5.9297e-05 deg
M 179.0614887703276 6.6014e-06 deg
tp 2458397.252898144327
(2018-Oct-05.75289814)
2.2078e-05 TDB
period 1212.817776504657
3.32
5.7657e-06
1.579e-08
d
yr
n .2968294223370642 1.4111e-09 deg/d
Q 2.738318393233146 8.6785e-09 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      8438 days (23.10 yr)  
   first obs. used      1997-04-14  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:16  

Additional Information
 Earth MOID = .710494 au 
 Jupiter MOID = 2.71996 au 
 T_jup = 3.609 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2306486471810868 4.0883e-08  
q 1.712457384555824 9.124e-08 au
tp 2457182.475719799919
(2015-Jun-08.97571980)
2.2667e-05 TDB
node 187.2461021978479 5.8862e-05 deg
peri 174.7686707636773 5.9314e-05 deg
i 3.221255144302002 4.4583e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      8438 days (23.10 yr)  
   first obs. used      1997-04-14  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:16  

Additional Information
 Jupiter MOID = 2.71996 au 
 T_jup = 3.609 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.671443480968058E-15 -3.723697954435453E-15 -8.566840919264292E-14 -1.369721251441136E-14 -2.382546588059036E-14 -1.043601390942219E-15
q -3.723697954435453E-15 8.324750482319741E-15 1.611092927081305E-13 3.014778944254435E-14 4.438564659892458E-14 2.401949251288285E-15
tp -8.566840919264292E-14 1.611092927081305E-13 5.138137421138417E-10 1.048375755839924E-12 1.734082127867603E-10 -6.075491452859789E-13
node -1.369721251441136E-14 3.014778944254435E-14 1.048375755839924E-12 3.464736779284207E-9 -3.457971736088584E-9 -2.12262933052566E-11
peri -2.382546588059036E-14 4.438564659892458E-14 1.734082127867603E-10 -3.457971736088584E-9 3.518163433306872E-9 2.101034190683746E-11
i -1.043601390942219E-15 2.401949251288285E-15 -6.075491452859789E-13 -2.12262933052566E-11 2.101034190683746E-11 1.987617475321594E-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 MPO453287  

85649 (1998 QZ1)          Discovered 1998-Aug-19 by NEAT at Haleakala
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 QZ1 = 2000 EL159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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