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1701 Okavango (1953 NJ)
Classification: Main-belt Asteroid          SPK-ID: 2001701
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925054844716015 3.5654e-08  
a 3.161171104301525 1.5112e-08 au
q 2.552628329370332 1.1611e-07 au
i 16.2773838493435 4.2742e-06 deg
node 61.26029970354558 1.4661e-05 deg
peri 260.0245471123249 1.9791e-05 deg
M 272.9653488644259 1.6315e-05 deg
tp 2459496.818112116510
(2021-Oct-09.31811212)
9.4806e-05 TDB
period 2052.912466824526
5.62
1.4721e-05
4.03e-08
d
yr
n .1753606185444687 1.2574e-09 deg/d
Q 3.769713879232717 1.8021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2572  
   data-arc span      32443 days (88.82 yr)  
   first obs. used      1931-10-07  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:39:36  

Additional Information
 Earth MOID = 1.60216 au 
 Jupiter MOID = 1.77441 au 
 T_jup = 3.114 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456765.5 (2014-Apr-18.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1910404207873484 3.569e-08  
q 2.558188167648808 1.1612e-07 au
tp 2457444.033465944872
(2016-Feb-25.53346594)
8.8801e-05 TDB
node 61.27551930480936 1.4656e-05 deg
peri 260.2963113877042 1.9852e-05 deg
i 16.27671100304251 4.2741e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2572  
   data-arc span      32443 days (88.82 yr)  
   first obs. used      1931-10-07  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:39:36  

Additional Information
 Jupiter MOID = 1.77441 au 
 T_jup = 3.114 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.2737656625129E-15 -4.122459607374978E-15 5.744758978902924E-13 -1.661252573022532E-15 1.152118877522538E-13 1.160666944963322E-15
q -4.122459607374978E-15 1.348385597136011E-14 -1.410117414936925E-12 4.964807488091966E-15 -3.128689553412006E-13 -2.590036711839635E-15
tp 5.744758978902924E-13 -1.410117414936925E-12 7.885575719318078E-9 6.380015072385459E-12 1.214499959858589E-9 2.491620672448478E-12
node -1.661252573022532E-15 4.964807488091966E-15 6.380015072385459E-12 2.147847150776415E-10 -2.048746650526812E-10 -1.911450538808044E-11
peri 1.152118877522538E-13 -3.128689553412006E-13 1.214499959858589E-9 -2.048746650526812E-10 3.941174769151619E-10 1.868149775111802E-11
i 1.160666944963322E-15 -2.590036711839635E-15 2.491620672448478E-12 -1.911450538808044E-11 1.868149775111802E-11 1.826777977311027E-11

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 10.7   n/a MPO384763  
diameter diameter 19.461 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.204 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Higgins, D.J. (2004) Minor Planet Bull. 32, 13-14.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2018) Icarus 309, 297-337.]
geometric albedo albedo 0.217   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1701 Okavango (1953 NJ)          Discovered 1953-Jul-06 by Churms, J. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1953 NJ = 1931 TU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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