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72986 (2002 DQ8)
Classification: Main-belt Asteroid          SPK-ID: 2072986
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2413845356501027 4.1471e-08  
a 2.26031853650705 9.2468e-09 au
q 1.714712596150976 9.2967e-08 au
i 23.62446931388316 6.1128e-06 deg
node 357.1375475715209 9.3436e-06 deg
peri 293.1042906843301 1.4334e-05 deg
M 112.7577146404135 1.1063e-05 deg
tp 2459007.726494012539
(2020-Jun-07.22649401)
3.8005e-05 TDB
period 1241.231809298515
3.40
7.6167e-06
2.085e-08
d
yr
n .2900344619781013 1.7798e-09 deg/d
Q 2.805924476863124 1.1479e-08 au
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      7998 days (21.90 yr)  
   first obs. used      1999-03-19  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47334  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:05:09  

Additional Information
 Earth MOID = .81468 au 
 Jupiter MOID = 2.78884 au 
 T_jup = 3.474 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457728.5 (2016-Dec-06.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2409037448857338 4.1457e-08  
q 1.71602218728932 9.2961e-08 au
tp 2457766.274019717966
(2017-Jan-12.77401972)
3.8715e-05 TDB
node 357.1688470222576 9.3446e-06 deg
peri 293.1057189805638 1.4348e-05 deg
i 23.62129213451872 6.1117e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      7998 days (21.90 yr)  
   first obs. used      1999-03-19  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47334  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:05:09  

Additional Information
 Jupiter MOID = 2.78884 au 
 T_jup = 3.474 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.718669463134237E-15 -3.842996874824206E-15 7.455744562074575E-13 9.227973982886329E-15 1.949908374929254E-13 -1.9382752531507E-15
q -3.842996874824206E-15 8.641733321295297E-15 -1.733968955037314E-12 -2.104725849224732E-14 -4.550720988131875E-13 4.529207018644369E-15
tp 7.455744562074575E-13 -1.733968955037314E-12 1.498813270259471E-9 1.175048933047755E-11 4.304036025990888E-10 -7.550802660700585E-12
node 9.227973982886329E-15 -2.104725849224732E-14 1.175048933047755E-11 8.732065722610194E-11 -7.572813195262501E-11 -1.000299287247605E-11
peri 1.949908374929254E-13 -4.550720988131875E-13 4.304036025990888E-10 -7.572813195262501E-11 2.058516509882215E-10 6.903811554438804E-12
i -1.9382752531507E-15 4.529207018644369E-15 -7.550802660700585E-12 -1.000299287247605E-11 6.903811554438804E-12 3.735316828322796E-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 15.61   n/a E2021B10  
diameter diameter 2.292 km 0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.194   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72986 (2002 DQ8)          Discovered 2002-Feb-19 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 DQ8 = 1999 FB14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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