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160044 (1999 RJ37)
Classification: Main-belt Asteroid          SPK-ID: 2160044
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3267693754222391 1.4672e-07  
a 2.536293210520711 1.6384e-08 au
q 1.707510262231193 3.8184e-07 au
i 14.60604999576512 5.5102e-06 deg
node 201.2985175249246 3.6694e-05 deg
peri 121.7923501331652 4.3906e-05 deg
M 53.96278130363223 2.237e-05 deg
tp 2458779.348728635095
(2019-Oct-22.84872863)
8.9731e-05 TDB
period 1475.358678111853
4.04
1.4296e-05
3.914e-08
d
yr
n .2440084606820653 2.3644e-09 deg/d
Q 3.365076158810229 2.1738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      521  
   data-arc span      7376 days (20.19 yr)  
   first obs. used      1999-06-21  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:12:38  

Additional Information
 Earth MOID = .746583 au 
 Jupiter MOID = 2.2282 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456652.5 (2013-Dec-26.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3268661392376636 1.4589e-07  
q 1.706896267977705 3.7943e-07 au
tp 2457305.629574069768
(2015-Oct-10.12957407)
7.7204e-05 TDB
node 201.3248716130731 3.6673e-05 deg
peri 121.9925710838237 4.3965e-05 deg
i 14.61056581393321 5.517e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      521  
   data-arc span      7376 days (20.19 yr)  
   first obs. used      1999-06-21  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:12:38  

Additional Information
 Jupiter MOID = 2.2282 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.128275169355247E-14 -5.534818575401242E-14 -8.905402866291294E-12 6.114142071061288E-13 -2.204364352057565E-12 -4.742189563692538E-13
q -5.534818575401242E-14 1.4396374230392E-13 2.327184348423352E-11 -1.599843265811856E-12 5.781050240641804E-12 1.23625532361151E-12
tp -8.905402866291294E-12 2.327184348423352E-11 5.960527097749822E-9 -3.674797163939443E-10 1.926551333350989E-9 2.403515037616658E-10
node 6.114142071061288E-13 -1.599843265811856E-12 -3.674797163939443E-10 1.344931809872271E-9 -1.391125302581231E-9 5.518512394203616E-12
peri -2.204364352057565E-12 5.781050240641804E-12 1.926551333350989E-9 -1.391125302581231E-9 1.932915783583659E-9 4.680988086770289E-11
i -4.742189563692538E-13 1.23625532361151E-12 2.403515037616658E-10 5.518512394203616E-12 4.680988086770289E-11 3.043777454059344E-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 15.6   n/a MPO348374  

160044 (1999 RJ37)          Discovered 1999-Sep-10 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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