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18966 (2000 QO145)
Classification: Main-belt Asteroid          SPK-ID: 2018966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021299707344206 3.3571e-08  
a 2.23909095641394 7.984e-09 au
q 1.786503566922284 7.2306e-08 au
i 4.735429763200092 4.1003e-06 deg
node 38.00141539326428 4.2617e-05 deg
peri 217.1503409197138 4.4406e-05 deg
M 153.6081372758374 1.3687e-05 deg
tp 2458874.322983398463
(2020-Jan-25.82298340)
4.5938e-05 TDB
period 1223.787549997998
3.35
6.5456e-06
1.792e-08
d
yr
n .2941687059985117 1.5734e-09 deg/d
Q 2.691678345905596 9.5978e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1077  
   data-arc span      9023 days (24.70 yr)  
   first obs. used      1996-04-13  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:06:00  

Additional Information
 Earth MOID = .774876 au 
 Jupiter MOID = 2.36249 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457702.5 (2016-Nov-10.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .201729729761654 3.3607e-08  
q 1.787691924693336 7.2365e-08 au
tp 2457650.003764065790
(2016-Sep-18.50376407)
4.5308e-05 TDB
node 38.03271185367423 4.2598e-05 deg
peri 217.1325835571169 4.4389e-05 deg
i 4.736304751605676 4.1006e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1077  
   data-arc span      9023 days (24.70 yr)  
   first obs. used      1996-04-13  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:06:00  

Additional Information
 Jupiter MOID = 2.36249 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.129451780676611E-15 -2.424681405184583E-15 5.188827386311415E-15 -6.789749892363324E-15 -3.63444822194044E-14 7.019787389298484E-16
q -2.424681405184583E-15 5.236629330779537E-15 -1.817981521980112E-15 1.478399972918085E-14 8.080526200976232E-14 -1.600117625838777E-15
tp 5.188827386311415E-15 -1.817981521980112E-15 2.052823165978174E-9 -1.118130267983914E-11 5.746323233120788E-10 -3.012057844857843E-12
node -6.789749892363324E-15 1.478399972918085E-14 -1.118130267983914E-11 1.814576017223866E-9 -1.810941364699262E-9 -5.951448952808717E-11
peri -3.63444822194044E-14 8.080526200976232E-14 5.746323233120788E-10 -1.810941364699262E-9 1.970399669665868E-9 5.847639263751861E-11
i 7.019787389298484E-16 -1.600117625838777E-15 -3.012057844857843E-12 -5.951448952808717E-11 5.847639263751861E-11 1.681467933258926E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.92   n/a MPCxxxxx  
diameter diameter 1.538 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.392   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18966 (2000 QO145)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 QO145 = 1997 WY27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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