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109375 (2001 QR162)
Classification: Main-belt Asteroid          SPK-ID: 2109375
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05673213109555587 4.4197e-08  
a 3.007350268161221 2.1328e-08 au
q 2.836736878497643 1.2795e-07 au
i 8.707192262349794 5.6323e-06 deg
node 307.4583187294965 3.707e-05 deg
peri 152.2932484282609 7.029e-05 deg
M 91.28586120156207 5.9112e-05 deg
tp 2458517.468488590546
(2019-Feb-02.96848859)
0.00031179 TDB
period 1904.909936966535
5.22
2.0265e-05
5.548e-08
d
yr
n .1889853126459513 2.0104e-09 deg/d
Q 3.177963657824798 2.2538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      6835 days (18.71 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53284  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:03:55  

Additional Information
 Earth MOID = 1.85675 au 
 Jupiter MOID = 1.92187 au 
 T_jup = 3.231 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456910.5 (2014-Sep-10.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05805581174339518 4.4395e-08  
q 2.833835211709053 1.2903e-07 au
tp 2456618.142888250516
(2013-Nov-21.64288825)
0.00030038 TDB
node 307.4824831779709 3.706e-05 deg
peri 153.5136925166167 6.8923e-05 deg
i 8.707942502153854 5.6322e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      6835 days (18.71 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53284  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:03:55  

Additional Information
 Jupiter MOID = 1.92187 au 
 T_jup = 3.231 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.970883284250588E-15 -5.665873574268191E-15 2.409399856503501E-12 -1.308692408380522E-14 4.449397513019442E-13 -2.110745759898868E-15
q -5.665873574268191E-15 1.664855612999724E-14 -6.620166574097889E-12 3.612323184552918E-14 -1.207814017845943E-12 6.104521647173546E-15
tp 2.409399856503501E-12 -6.620166574097889E-12 9.022712119545477E-8 -1.466238184339916E-11 1.749905487780639E-8 -1.422571281952802E-11
node -1.308692408380522E-14 3.612323184552918E-14 -1.466238184339916E-11 1.373412216845344E-9 -1.36010107379367E-9 7.509741175484998E-11
peri 4.449397513019442E-13 -1.207814017845943E-12 1.749905487780639E-8 -1.36010107379367E-9 4.750325666126779E-9 -7.699997778136786E-11
i -2.110745759898868E-15 6.104521647173546E-15 -1.422571281952802E-11 7.509741175484998E-11 -7.699997778136786E-11 3.172192494579049E-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 14.3   n/a MPO469118  
diameter diameter 5.038 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109375 (2001 QR162)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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