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72270 (2001 AQ42)
Classification: Main-belt Asteroid          SPK-ID: 2072270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07311423616855707 8.1439e-08  
a 2.470995805854108 1.1739e-08 au
q 2.290330834933377 1.9567e-07 au
i 5.605426738995851 5.2161e-06 deg
node 9.200015200968746 3.4781e-05 deg
peri 17.01315387590618 4.4003e-05 deg
M 174.6767275674306 2.4187e-05 deg
tp 2458708.102973668016
(2019-Aug-12.60297367)
9.5211e-05 TDB
period 1418.751844797681
3.88
1.011e-05
2.768e-08
d
yr
n .2537441634490613 1.8082e-09 deg/d
Q 2.651660776774839 1.2598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      9919 days (27.16 yr)  
   first obs. used      1994-04-16  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:49:13  

Additional Information
 Earth MOID = 1.29364 au 
 Jupiter MOID = 2.64953 au 
 T_jup = 3.474 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457514.5 (2016-May-06.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07265567849016738 8.1976e-08  
q 2.291294802767519 1.9704e-07 au
tp 2457283.763072059457
(2015-Sep-18.26307206)
9.5036e-05 TDB
node 9.253004826406412 3.473e-05 deg
peri 15.74092185686349 4.3784e-05 deg
i 5.610704334256722 5.2179e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      9919 days (27.16 yr)  
   first obs. used      1994-04-16  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:49:13  

Additional Information
 Jupiter MOID = 2.64953 au 
 T_jup = 3.474 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.720067098750345E-15 -1.613523522433597E-14 -2.40176749086463E-12 8.401576456300773E-14 -9.740864758312813E-13 -6.461311935596341E-15
q -1.613523522433597E-14 3.882618763898334E-14 5.856824457844342E-12 -2.018717088380954E-13 2.364029669657809E-12 1.577456147812423E-14
tp -2.40176749086463E-12 5.856824457844342E-12 9.031884456063412E-9 -3.313272046120877E-11 2.515960379422937E-9 -7.191749689467948E-14
node 8.401576456300773E-14 -2.018717088380954E-13 -3.313272046120877E-11 1.206171029428978E-9 -1.211990748872214E-9 4.080125700302594E-11
peri -9.740864758312813E-13 2.364029669657809E-12 2.515960379422937E-9 -1.211990748872214E-9 1.917024879051085E-9 -4.039114233062464E-11
i -6.461311935596341E-15 1.577456147812423E-14 -7.191749689467948E-14 4.080125700302594E-11 -4.039114233062464E-11 2.722669508739086E-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 15.85   n/a MPCxxxxx  

72270 (2001 AQ42)          Discovered 2001-Jan-04 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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