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91249 (1999 CQ44)
Classification: Main-belt Asteroid          SPK-ID: 2091249
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07406631729977395 3.7039e-08  
a 2.414205488265695 1.3607e-08 au
q 2.235394178544952 8.6592e-08 au
i 7.952858967776105 4.4094e-06 deg
node 90.76891425227861 3.3553e-05 deg
peri 133.558740549272 4.925e-05 deg
M 172.9131178141386 3.6488e-05 deg
tp 2458342.410112797697
(2018-Aug-11.91011280)
0.00013855 TDB
period 1370.123692104621
3.75
1.1584e-05
3.172e-08
d
yr
n .2627499999266569 2.2214e-09 deg/d
Q 2.593016797986438 1.4615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      7566 days (20.71 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5621  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:53:56  

Additional Information
 Earth MOID = 1.23285 au 
 Jupiter MOID = 2.40455 au 
 T_jup = 3.501 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457302.5 (2015-Oct-07.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07360887366619179 3.7012e-08  
q 2.237056326844566 8.6499e-08 au
tp 2456973.811495965670
(2014-Nov-12.31149597)
0.00013966 TDB
node 90.79378574011999 3.3577e-05 deg
peri 134.0783525269491 4.9443e-05 deg
i 7.949898923889698 4.4068e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      7566 days (20.71 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5621  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:53:56  

Additional Information
 Jupiter MOID = 2.40455 au 
 T_jup = 3.501 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.369908030853588E-15 -3.169954217224435E-15 -6.146098009618038E-13 2.313285706303496E-15 -2.027864093000272E-13 -1.426776129482051E-16
q -3.169954217224435E-15 7.482093683453468E-15 1.378854924457028E-12 -4.601068974882755E-15 4.652811973212876E-13 5.66537713587556E-16
tp -6.146098009618038E-13 1.378854924457028E-12 1.950359115383373E-8 5.436497325910023E-11 5.088579074380756E-9 3.324871322048448E-13
node 2.313285706303496E-15 -4.601068974882755E-15 5.436497325910023E-11 1.127394483132754E-9 -1.102206073034541E-9 4.638591417572149E-11
peri -2.027864093000272E-13 4.652811973212876E-13 5.088579074380756E-9 -1.102206073034541E-9 2.444572051058815E-9 -4.585679917940996E-11
i -1.426776129482051E-16 5.66537713587556E-16 3.324871322048448E-13 4.638591417572149E-11 -4.585679917940996E-11 1.941966609725894E-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 15.8   n/a MPO436410  
diameter diameter 2.013 km 0.491 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91249 (1999 CQ44)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
2080-Sep-25 18:11 00:04 Psych 0.0396504248510238 0.0396486369892134 0.0396522164574194 3.32845219270932 3.32845210103177 2481033.257375161 3.90020183092336 743.443436899948 50.7417194275835 -84.3389187351781 116178.467514218 T 20 CATAB v2.0f-lin.ifort 2019-Nov-07 10:54:12 2019-Nov-07 10:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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