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1606 Jekhovsky (1950 RH)
Classification: Main-belt Asteroid          SPK-ID: 2001606
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3189824808105794 3.3914e-08  
a 2.687147611479026 7.4375e-09 au
q 1.829994600065223 9.2994e-08 au
i 7.719995324329124 4.2555e-06 deg
node 190.3348495305763 2.1771e-05 deg
peri 142.902343457998 2.2494e-05 deg
M 287.5703450737406 7.0073e-06 deg
tp 2459324.205164330329
(2021-Apr-19.70516433)
3.217e-05 TDB
period 1608.924677020226
4.40
6.6798e-06
1.829e-08
d
yr
n .2237519289384822 9.2896e-10 deg/d
Q 3.544300622892828 9.81e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      41521 days (113.68 yr)  
   first obs. used      1906-10-13  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:33:49  

Additional Information
 Earth MOID = .82741 au 
 Jupiter MOID = 1.90208 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456698.5 (2014-Feb-10.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .315608313520609 3.393e-08  
q 1.843247943553265 9.3202e-08 au
tp 2456102.770727135271
(2012-Jun-24.27072714)
2.6378e-05 TDB
node 190.4797435088432 2.1839e-05 deg
peri 142.7756952151798 2.2584e-05 deg
i 7.696828106146484 4.245e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      41521 days (113.68 yr)  
   first obs. used      1906-10-13  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:33:49  

Additional Information
 Jupiter MOID = 1.90208 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.151220684621915E-15 -3.158134734588339E-15 1.67287212981714E-13 1.893268981040167E-16 6.121287376022352E-14 -5.037920049140708E-16
q -3.158134734588339E-15 8.686593758008183E-15 -4.194978819893709E-13 -1.757496166724392E-15 -1.580672897526455E-13 1.54916559535662E-15
tp 1.67287212981714E-13 -4.194978819893709E-13 6.958252419934336E-10 -5.701948427376813E-12 1.585908049180343E-10 1.031788428866502E-12
node 1.893268981040167E-16 -1.757496166724392E-15 -5.701948427376813E-12 4.76954898864745E-10 -4.734472613777576E-10 2.863555713569949E-12
peri 6.121287376022352E-14 -1.580672897526455E-13 1.585908049180343E-10 -4.734472613777576E-10 5.100521048967542E-10 -2.542745319980293E-12
i -5.037920049140708E-16 1.54916559535662E-15 1.031788428866502E-12 2.863555713569949E-12 -2.542745319980293E-12 1.802039834757991E-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 12.0   n/a MPO473785  
diameter diameter 18.981 km 0.340 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 165.946 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.033   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.734   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=12.70, mean=17.83, max.=22.97) deg.
U-B UB 0.390   0.047 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=12.70, mean=17.83, max.=22.97) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1606 Jekhovsky (1950 RH)          Discovered 1950-Sep-14 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1950 RH = 1928 RL = 1937 TS = 1937 VO = A906 SG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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