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85653 (1998 QN16)
Classification: Main-belt Asteroid          SPK-ID: 2085653
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2429170954645656 4.3029e-08  
a 2.306484744608727 6.4931e-09 au
q 1.746200169715044 9.9682e-08 au
i 7.049417468549173 4.294e-06 deg
node 166.230827847575 2.5535e-05 deg
peri 211.6985331329918 2.6758e-05 deg
M 47.29018575477381 8.7531e-06 deg
tp 2458832.428983878768
(2019-Dec-14.92898388)
3.0922e-05 TDB
period 1279.452910534098
3.50
5.4028e-06
1.479e-08
d
yr
n .2813702614891241 1.1882e-09 deg/d
Q 2.866769319502409 8.0704e-09 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:36:30  

Additional Information
 Earth MOID = .751847 au 
 Jupiter MOID = 2.60049 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456933.5 (2014-Oct-03.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2444459735109628 4.3205e-08  
q 1.741782631156099 1.0023e-07 au
tp 2457552.183258068946
(2016-Jun-12.68325807)
2.9483e-05 TDB
node 166.3415812355499 2.5499e-05 deg
peri 211.4372742353769 2.6695e-05 deg
i 7.056004850106393 4.2984e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:36:30  

Additional Information
 Jupiter MOID = 2.60049 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.866705227283527E-15 -4.325152791611897E-15 -7.041344778665231E-13 -5.106749367409253E-15 -1.127850473151432E-13 -1.970171394390861E-15
q -4.325152791611897E-15 1.004526341195282E-14 1.639262978823341E-12 1.13540409967574E-14 2.599068444749773E-13 4.698833819537809E-15
tp -7.041344778665231E-13 1.639262978823341E-12 8.69233355021768E-10 -5.486547435150572E-14 2.320242815021086E-10 2.783601308275983E-12
node -5.106749367409253E-15 1.13540409967574E-14 -5.486547435150572E-14 6.501884720037935E-10 -6.447126525610953E-10 -1.175758191645242E-11
peri -1.127850473151432E-13 2.599068444749773E-13 2.320242815021086E-10 -6.447126525610953E-10 7.126418893422726E-10 1.2385234398402E-11
i -1.970171394390861E-15 4.698833819537809E-15 2.783601308275983E-12 -1.175758191645242E-11 1.2385234398402E-11 1.847663571271668E-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 15.7   n/a MPO449531  

85653 (1998 QN16)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 QN16 = 2000 DD59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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