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212726 (2007 RD145)
Classification: Main-belt Asteroid          SPK-ID: 2212726
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683186235291644 5.8821e-08  
a 2.23919556466609 1.0434e-08 au
q 1.862297249408884 1.3416e-07 au
i 3.800897275843724 6.2542e-06 deg
node 205.6561701317381 6.2174e-05 deg
peri 184.1381702714164 6.3497e-05 deg
M 266.2996039525196 1.3586e-05 deg
tp 2459319.048372436346
(2021-Apr-14.54837244)
4.6998e-05 TDB
period 1223.873312328099
3.35
8.5541e-06
2.342e-08
d
yr
n .2941480922687938 2.0559e-09 deg/d
Q 2.616093879923296 1.219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      7863 days (21.53 yr)  
   first obs. used      1997-09-30  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57694  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:32:58  

Additional Information
 Earth MOID = .867479 au 
 Jupiter MOID = 2.82007 au 
 T_jup = 3.614 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457087.5 (2015-Mar-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1679845935755773 5.8633e-08  
q 1.862638465189735 1.3349e-07 au
tp 2456872.991797729546
(2014-Aug-03.49179773)
4.3853e-05 TDB
node 205.7381563271391 6.2232e-05 deg
peri 184.2469189957015 6.3565e-05 deg
i 3.798688637768165 6.2525e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      7863 days (21.53 yr)  
   first obs. used      1997-09-30  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57694  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:32:58  

Additional Information
 Jupiter MOID = 2.82007 au 
 T_jup = 3.614 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.437816460758914E-15 -7.81121509540709E-15 -1.122148507929723E-12 -3.22943048032767E-14 -2.670782901850841E-13 -3.465078527671564E-15
q -7.81121509540709E-15 1.781941481573729E-14 2.510121774624633E-12 7.3528029709098E-14 5.980556341276245E-13 7.913701451596575E-15
tp -1.122148507929723E-12 2.510121774624633E-12 1.923068279116205E-9 1.580221367311953E-11 5.774888796506275E-10 1.252559116451602E-12
node -3.22943048032767E-14 7.3528029709098E-14 1.580221367311953E-11 3.872874559824166E-9 -3.859153403716575E-9 -1.317378039624737E-10
peri -2.670782901850841E-13 5.980556341276245E-13 5.774888796506275E-10 -3.859153403716575E-9 4.040484191406446E-9 1.317992508000926E-10
i -3.465078527671564E-15 7.913701451596575E-15 1.252559116451602E-12 -1.317378039624737E-10 1.317992508000926E-10 3.90934922269737E-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 17.2   n/a MPO437021  

212726 (2007 RD145)          Discovered 2007-Sep-14 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2007 RD145 = 1997 SM25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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