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5927 Krogh (1938 HA)
Classification: Main-belt Asteroid          SPK-ID: 2005927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024135464635164 2.5726e-08  
a 3.154473081305382 1.5841e-08 au
q 2.515964997694663 8.5903e-08 au
i 11.18888582075214 7.8077e-07 deg
node 39.71172862260654 8.4148e-06 deg
peri 218.1405812501194 9.9373e-06 deg
M 225.5187597428592 9.9152e-06 deg
tp 2459964.947862068837
(2023-Jan-20.44786207)
5.9429e-05 TDB
period 2046.391227643132
5.60
1.5414e-05
4.22e-08
d
yr
n .1759194405923147 1.3251e-09 deg/d
Q 3.7929811649161 1.9047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2455  
   data-arc span      30281 days (82.90 yr)  
   first obs. used      1938-04-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38052  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:08:08  

Additional Information
 Earth MOID = 1.51098 au 
 Jupiter MOID = 1.32574 au 
 T_jup = 3.146 
[ 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 12.93   n/a MPCxxxxx  
diameter diameter 15.807 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.8407 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.059   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5927 Krogh           Discovered 1938 Apr. 19 by W. Dieckvoss at Bergedorf.
American mathematician Fred T. Krogh (b. 1937) developed the accurate, flexible and fast numerical integration algorithm used to track and navigate NASA interplanetary spacecraft since the 1970s. His work is at the core of JPL planetary, asteroid and comet orbit solutions and ephemerides.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-08-18Last Updated: 2017-01-17

[ show close-approach data ]
Alternate Designations
 1938 HA = 1989 OE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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