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101142 (1998 RQ69)
Classification: Main-belt Asteroid          SPK-ID: 2101142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1872271985931031 5.1381e-08  
a 2.63024949174594 1.2243e-08 au
q 2.137795247805414 1.3789e-07 au
i 2.76112893852477 5.3259e-06 deg
node 24.2113709021088 9.2451e-05 deg
peri 334.4332196345061 9.3328e-05 deg
M 32.54303280977546 1.1771e-05 deg
tp 2458859.652426903870
(2020-Jan-11.15242690)
5.0656e-05 TDB
period 1558.094680695397
4.27
1.0878e-05
2.978e-08
d
yr
n .2310514274006298 1.6132e-09 deg/d
Q 3.122703735686465 1.4535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      8079 days (22.12 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:11  

Additional Information
 Earth MOID = 1.13461 au 
 Jupiter MOID = 2.32605 au 
 T_jup = 3.373 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457104.5 (2015-Mar-23.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898371751850713 5.1604e-08  
q 2.130342749257662 1.389e-07 au
tp 2457300.806149718834
(2015-Oct-05.30614972)
4.72e-05 TDB
node 24.28184321937558 9.2176e-05 deg
peri 334.2579730386117 9.302e-05 deg
i 2.767771988570388 5.3342e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      8079 days (22.12 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:11  

Additional Information
 Jupiter MOID = 2.32605 au 
 T_jup = 3.373 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.662945139730321E-15 -7.150378597968293E-15 -7.490900277287382E-14 2.236509461100401E-15 2.724333132517455E-14 -2.40337586684282E-15
q -7.150378597968293E-15 1.929270232223356E-14 2.321281314585571E-13 -7.930185564805042E-15 -6.939173222677359E-14 6.607007990275711E-15
tp -7.490900277287382E-14 2.321281314585571E-13 2.22785431172252E-9 6.798850072658242E-13 6.053158285369765E-10 8.869953180925059E-13
node 2.236509461100401E-15 -7.930185564805042E-15 6.798850072658242E-13 8.496429507064905E-9 -8.485543844941761E-9 -1.121338283501463E-10
peri 2.724333132517455E-14 -6.939173222677359E-14 6.053158285369765E-10 -8.485543844941761E-9 8.652759084393319E-9 1.122076720076623E-10
i -2.40337586684282E-15 6.607007990275711E-15 8.869953180925059E-13 -1.121338283501463E-10 1.122076720076623E-10 2.845351476192974E-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 16.2   n/a MPO439692  
diameter diameter 3.693 km 1.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.039   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

101142 (1998 RQ69)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 RQ69 = 2002 PV51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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