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85330 (1995 QO)
Classification: Main-belt Asteroid          SPK-ID: 2085330
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3013765112611331 4.9817e-08  
a 2.771331259638166 1.3497e-08 au
q 1.936117113059494 1.402e-07 au
i 8.460564958585776 6.5368e-06 deg
node 346.6437544888817 2.9118e-05 deg
peri 32.88896540934488 3.0428e-05 deg
M 198.6385887605918 9.4676e-06 deg
tp 2460151.815279593037
(2023-Jul-26.31527959)
4.7646e-05 TDB
period 1685.120987508354
4.61
1.231e-05
3.37e-08
d
yr
n .2136345121024821 1.5606e-09 deg/d
Q 3.606545406216838 1.7564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      521  
   data-arc span      9391 days (25.71 yr)  
   first obs. used      1995-08-23  
   last obs. used      2021-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:25:48  

Additional Information
 Earth MOID = .943155 au 
 Jupiter MOID = 1.9079 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457651.5 (2016-Sep-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2991241269229289 4.9644e-08  
q 1.945765697532971 1.3926e-07 au
tp 2458466.634514183621
(2018-Dec-14.13451418)
4.1318e-05 TDB
node 346.7327260015859 2.9054e-05 deg
peri 32.64748801706243 3.042e-05 deg
i 8.464224907023128 6.5377e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      521  
   data-arc span      9391 days (25.71 yr)  
   first obs. used      1995-08-23  
   last obs. used      2021-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:25:48  

Additional Information
 Jupiter MOID = 1.9079 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.464557321057325E-15 -6.897985534029807E-15 -7.855495833769009E-13 1.030856423213087E-14 -2.195259592719024E-13 2.282261522570975E-15
q -6.897985534029807E-15 1.939342298197486E-14 2.332458087144861E-12 -3.292501094745583E-14 6.289970972740501E-13 -6.616224653363111E-15
tp -7.855495833769009E-13 2.332458087144861E-12 1.707198612312437E-9 -1.610725188323007E-11 3.768285222003103E-10 -4.020722658642548E-12
node 1.030856423213087E-14 -3.292501094745583E-14 -1.610725188323007E-11 8.441476943710905E-10 -8.379124375808891E-10 1.893078534087026E-12
peri -2.195259592719024E-13 6.289970972740501E-13 3.768285222003103E-10 -8.379124375808891E-10 9.253956075162872E-10 -2.704137140676692E-12
i 2.282261522570975E-15 -6.616224653363111E-15 -4.020722658642548E-12 1.893078534087026E-12 -2.704137140676692E-12 4.274147560338249E-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 15.89   n/a E2021B10  
diameter diameter 2.135 km 0.358 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85330 (1995 QO)          Discovered 1995-Aug-23 by Sarounova, L. at Ondrejov
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1995 QO = 2000 XE26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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