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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3191061192121527 2.0639e-08  
a 2.688080685899735 6.0558e-09 au
q 1.830297690093129 5.768e-08 au
i 7.719394590011483 5.6361e-07 deg
node 190.3237181601493 1.7088e-06 deg
peri 142.8637438460678 1.4325e-06 deg
M 332.3612216182149 3.0848e-06 deg
tp 2459324.088545275861
(2021-Apr-19.58854528)
1.4098e-05 TDB
period 1609.762764646337
4.41
5.4397e-06
1.489e-08
d
yr
n .2236354374112335 7.5571e-10 deg/d
Q 3.54586368170634 7.9882e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      41624 days (113.96 yr)  
   first obs. used      1906-10-13  
   last obs. used      2020-09-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:36:44  

Additional Information
 Earth MOID = .825862 au 
 Jupiter MOID = 1.90095 au 
 T_jup = 3.286 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456890.5 (2014-Aug-21.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .316757699299245 2.0661e-08  
q 1.838615100660519 5.7803e-08 au
tp 2456103.726421163825
(2012-Jun-25.22642116)
9.737e-06 TDB
node 190.3826335641253 1.7098e-06 deg
peri 142.8519445235821 1.4342e-06 deg
i 7.706832332795976 5.629e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      41624 days (113.96 yr)  
   first obs. used      1906-10-13  
   last obs. used      2020-09-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:36:44  

Additional Information
 Jupiter MOID = 1.90095 au 
 T_jup = 3.286 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.268602900650297E-16 -1.191917079186975E-15 -1.140283312501313E-13 -1.063842791045755E-14 1.02733197586925E-14 2.467925820304273E-15
q -1.191917079186975E-15 3.341208913054905E-15 3.038013611314189E-13 2.977937524876802E-14 -2.919005746672182E-14 -6.761250261896528E-15
tp -1.140283312501313E-13 3.038013611314189E-13 9.480920404976792E-11 7.135108530029678E-12 2.519060874313572E-12 6.778419833267853E-13
node -1.063842791045755E-14 2.977937524876802E-14 7.135108530029678E-12 2.923378604648129E-12 -1.468861077057886E-12 2.405747919712243E-13
peri 1.02733197586925E-14 -2.919005746672182E-14 2.519060874313572E-12 -1.468861077057886E-12 2.05694046589373E-12 6.253712491132589E-14
i 2.467925820304273E-15 -6.761250261896528E-15 6.778419833267853E-13 2.405747919712243E-13 6.253712491132589E-14 3.16853261573835E-13

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 12.04   n/a E2021B10  
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. 2020-October); 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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