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208811 (2002 RQ)
Classification: Main-belt Asteroid          SPK-ID: 2208811
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 .1576455767792836 5.1614e-08  
a 2.745516652412755 1.3866e-08 au
q 2.312698096186018 1.4461e-07 au
i 8.232644185525766 4.2153e-06 deg
node 130.0617682240248 3.196e-05 deg
peri 245.3125761217773 3.4607e-05 deg
M 45.6186839197191 1.1765e-05 deg
tp 2459185.940519085260
(2020-Dec-02.44051909)
5.4286e-05 TDB
period 1661.630862974996
4.55
1.2588e-05
3.446e-08
d
yr
n .2166546180753127 1.6412e-09 deg/d
Q 3.178335208639492 1.6051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      6745 days (18.47 yr)  
   first obs. used      2002-08-25  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50114  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:23:48  

Additional Information
 Earth MOID = 1.3267 au 
 Jupiter MOID = 2.32687 au 
 T_jup = 3.315 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458069.5 (2017-Nov-12.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604402562813976 5.1781e-08  
q 2.303740641530426 1.4554e-07 au
tp 2457523.547172957633
(2016-May-15.04717296)
5.4106e-05 TDB
node 130.1860481515494 3.2045e-05 deg
peri 245.0735783450053 3.4554e-05 deg
i 8.224486581167904 4.2121e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      6745 days (18.47 yr)  
   first obs. used      2002-08-25  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50114  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:23:48  

Additional Information
 Jupiter MOID = 2.32687 au 
 T_jup = 3.315 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.681313249428081E-15 -7.51321857471802E-15 1.507382302024223E-13 4.046734616168211E-14 7.07703526499972E-14 -3.209912710839127E-15
q -7.51321857471802E-15 2.118187899978097E-14 -5.623782540154555E-13 -1.122971509072891E-13 -2.225840633970088E-13 9.595381742900832E-15
tp 1.507382302024223E-13 -5.623782540154555E-13 2.927429825388344E-9 -6.830216641518422E-12 7.22007701323453E-10 1.438517796738223E-12
node 4.046734616168211E-14 -1.122971509072891E-13 -6.830216641518422E-12 1.026901582349569E-9 -1.016728821019163E-9 3.662651957488585E-11
peri 7.07703526499972E-14 -2.225840633970088E-13 7.22007701323453E-10 -1.016728821019163E-9 1.193956903465395E-9 -3.60192380000265E-11
i -3.209912710839127E-15 9.595381742900832E-15 1.438517796738223E-12 3.662651957488585E-11 -3.60192380000265E-11 1.774151179097315E-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 15.79   n/a MPCxxxxx  

208811 (2002 RQ)          Discovered 2002-Sep-03 by Kusnirak, P. at Ondrejov
Reference: 20090311/Numbers.arcLast Updated: 2009-03-12

[ 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
2083-Nov-14 01:51 00:02 Eunom 0.0135948086738109 0.0135882839082878 0.0136013653694704 6.44676781111729 6.44676765094818 2482177.576756514 1.73343849590943 1098.46399518261 45.8680713783599 -72.8957011487115 42362.0927415866 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 23:23:49 2021-Apr-13 23:23
2135-Oct-22 18:39 00:10 Europ 0.0218997567163774 0.0218767077710812 0.0219228296384051 2.79140123524749 2.79140106138329 2501147.277032787 10.0283550605089 1620.40639538058 75.8117534412791 -44.9421684784201 30516.7157077989 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 23:23:49 2021-Apr-13 23:23
2164-May-28 04:49 00:05 Juno 0.00377023374058046 0.00376112730302711 0.00377963883747122 3.81414090047323 3.81414005445248 2511592.700976491 4.89497063033696 1758.24880272335 79.1105170175712 -75.0134196759032 6878.67573918619 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 23:23:49 2021-Apr-13 23:23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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