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7901 Konnai (1996 DP)
Classification: Main-belt Asteroid          SPK-ID: 2007901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1159995619780047 3.8324e-08  
a 2.580723836503232 1.0356e-08 au
q 2.281361001882662 9.7695e-08 au
i 1.343927326050071 3.6046e-06 deg
node 134.0826491511161 0.00017954 deg
peri 95.24056881022926 0.00018021 deg
M 251.0257515626677 1.6233e-05 deg
tp 2459458.886805692311
(2021-Sep-01.38680569)
6.8615e-05 TDB
period 1514.295830579913
4.15
9.1152e-06
2.496e-08
d
yr
n .2377342608558426 1.431e-09 deg/d
Q 2.880086671123803 1.1558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1700  
   data-arc span      10173 days (27.85 yr)  
   first obs. used      1992-03-23  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:40:56  

Additional Information
 Earth MOID = 1.27158 au 
 Jupiter MOID = 2.10288 au 
 T_jup = 3.415 
[ 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 14.1   n/a MPO452281  
diameter diameter 3.749 km 1.373 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7901 Konnai           Discovered 1996 Feb. 19 by T. Kobayashi at Oizumi.
A dentist by profession, Reiichi Konnai (b. 1950; former name Horiguchi) is an eagle-eyed observer, and his very accurate and artistic drawings of the planets are well known. He is also a pioneer of high-resolution planetary photography, and he authored a chapter on it in Planet Guidebook (Seibundo-Shinkosha, 1981).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1996 DP = 1992 FC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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