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312589 (2009 HR102)
Classification: Main-belt Asteroid          SPK-ID: 2312589
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855262960971958 5.666e-08  
a 2.736802899680505 2.4622e-08 au
q 2.229053994554715 1.6271e-07 au
i 15.07400636926907 5.9769e-06 deg
node 100.0827744195289 1.8874e-05 deg
peri 267.7016534096475 2.9893e-05 deg
M 80.60472010997304 1.9013e-05 deg
tp 2458830.227309017607
(2019-Dec-12.72730902)
8.6234e-05 TDB
period 1653.726587869746
4.53
2.2317e-05
6.11e-08
d
yr
n .2176901566683616 2.9377e-09 deg/d
Q 3.244551804806295 2.919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2001-07-29  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58626  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:30:31  

Additional Information
 Earth MOID = 1.2869 au 
 Jupiter MOID = 2.4067 au 
 T_jup = 3.278 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457707.5 (2016-Nov-15.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1874804779340033 5.7489e-08  
q 2.22240535870076 1.6547e-07 au
tp 2457173.493386181709
(2015-May-30.99338618)
8.1543e-05 TDB
node 100.2627328622138 1.893e-05 deg
peri 266.9169920041437 2.9471e-05 deg
i 15.05609374055203 5.9693e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2001-07-29  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58626  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:30:31  

Additional Information
 Jupiter MOID = 2.4067 au 
 T_jup = 3.278 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.305035987695903E-15 -9.450941372830486E-15 -8.304529951604039E-13 -5.428923702030186E-15 -4.593831411548249E-13 -1.219938001183142E-14
q -9.450941372830486E-15 2.738105600589511E-14 2.212545349228297E-12 1.529855913888906E-14 1.303039940839383E-12 3.903085216588535E-14
tp -8.304529951604039E-13 2.212545349228297E-12 6.649238028940482E-9 -3.905933877157734E-11 1.827874811410773E-9 -1.118099716232739E-11
node -5.428923702030186E-15 1.529855913888906E-14 -3.905933877157734E-11 3.583551779434739E-10 -3.550458670147727E-10 -2.733767845929708E-11
peri -4.593831411548249E-13 1.303039940839383E-12 1.827874811410773E-9 -3.550458670147727E-10 8.685531179245991E-10 2.447930707852175E-11
i -1.219938001183142E-14 3.903085216588535E-14 -1.118099716232739E-11 -2.733767845929708E-11 2.447930707852175E-11 3.563304318181259E-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 16.50   n/a MPCxxxxx  

312589 (2009 HR102)          Discovered 2009-Apr-23 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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