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78817 (2003 QO1)
Classification: Main-belt Asteroid          SPK-ID: 2078817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526515666111324 5.019e-08  
a 2.5739253368193 1.2934e-08 au
q 2.181011601813748 1.284e-07 au
i 2.486801836926519 6.3747e-06 deg
node 230.9196062481801 0.00012943 deg
peri 88.02914454718982 0.00013144 deg
M 37.55550010711746 2.3971e-05 deg
tp 2458843.151215224172
(2019-Dec-25.65121522)
9.9824e-05 TDB
period 1508.316021827195
4.13
1.1369e-05
3.113e-08
d
yr
n .2386767725001629 1.799e-09 deg/d
Q 2.966839071824853 1.4908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      290  
   data-arc span      10580 days (28.97 yr)  
   first obs. used      1991-11-07  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:26  

Additional Information
 Earth MOID = 1.16966 au 
 Jupiter MOID = 2.32657 au 
 T_jup = 3.410 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO287288  
diameter diameter 3.270 km 0.556 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78817 (2003 QO1)          Discovered 2003-Aug-20 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 QO1 = 1995 WV37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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