Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1850 Kohoutek (1942 EN)
Classification: Main-belt Asteroid          SPK-ID: 2001850
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126127167837125 2.6804e-08  
a 2.250920688187364 5.5764e-09 au
q 1.967018436760299 6.0241e-08 au
i 4.050766246135945 3.0708e-06 deg
node 68.91906776575927 4.848e-05 deg
peri 190.8424426987809 5.0459e-05 deg
M 355.2028674978259 1.4204e-05 deg
tp 2459016.936824935232
(2020-Jun-16.43682494)
4.8671e-05 TDB
period 1233.498756601305
3.38
4.5837e-06
1.255e-08
d
yr
n .2918527465661322 1.0845e-09 deg/d
Q 2.534822939614428 6.2797e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2893  
   data-arc span      28626 days (78.37 yr)  
   first obs. used      1942-03-23  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:41:53  

Additional Information
 Earth MOID = .951907 au 
 Jupiter MOID = 2.5112 au 
 T_jup = 3.613 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO473789  
diameter diameter 7.642 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.68 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.181   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1850 Kohoutek (1942 EN)          Discovered 1942-Mar-23 by Reinmuth, K. at Heidelberg
Discovery is clearly Mar. 23. By error a provisional designation 1942 EN rather than an F designation was assigned.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1942 EN = 1949 KD = 1953 SH = 1959 GR = 1965 AQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-26 06:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin