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390944 (2005 JQ48)
Classification: Main-belt Asteroid          SPK-ID: 2390944
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07740127629287054 1.3316e-07  
a 2.862885132140452 4.8604e-08 au
q 2.641294169032898 3.6598e-07 au
i 6.350166225691758 1.5506e-05 deg
node 171.80503024377 7.8056e-05 deg
peri 159.8438253211914 0.00012296 deg
M 312.821176856948 0.00010226 deg
tp 2459232.372323628816
(2021-Jan-17.87232363)
0.00050635 TDB
period 1769.311545844843
4.84
4.5057e-05
1.234e-07
d
yr
n .2034689712195942 5.1815e-09 deg/d
Q 3.084476095248007 5.2366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      5104 days (13.97 yr)  
   first obs. used      2005-05-03  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:55:36  

Additional Information
 Earth MOID = 1.63206 au 
 Jupiter MOID = 2.21179 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457363.5 (2015-Dec-07.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07706379037106412 1.352e-07  
q 2.640283958499203 3.708e-07 au
tp 2457472.105905769294
(2016-Mar-24.60590577)
0.00047111 TDB
node 171.8759050984588 7.8053e-05 deg
peri 161.2425917323743 0.00012184 deg
i 6.351194779589671 1.5514e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      5104 days (13.97 yr)  
   first obs. used      2005-05-03  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:55:36  

Additional Information
 Jupiter MOID = 2.21179 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.827955869306485E-14 -4.982413431839745E-14 4.78659431951365E-11 4.128154795338011E-14 9.509414323246577E-12 2.635489886036087E-14
q -4.982413431839745E-14 1.374940460604719E-13 -1.246689232783389E-10 -1.041473081820629E-13 -2.479862556601821E-11 -6.514095628507822E-14
tp 4.78659431951365E-11 -1.246689232783389E-10 2.219471131810197E-7 4.58347994237606E-11 4.416516989988589E-8 7.452888557007058E-11
node 4.128154795338011E-14 -1.041473081820629E-13 4.58347994237606E-11 6.092348749900876E-9 -6.043399884516453E-9 6.211402616264819E-10
peri 9.509414323246577E-12 -2.479862556601821E-11 4.416516989988589E-8 -6.043399884516453E-9 1.484432129230721E-8 -6.019454947409448E-10
i 2.635489886036087E-14 -6.514095628507822E-14 7.452888557007058E-11 6.211402616264819E-10 -6.019454947409448E-10 2.406910064010589E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO434442  

390944 (2005 JQ48)          Discovered 2005-May-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2005 JQ48 = 2009 EC10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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