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4460 Bihoro (1990 DS)
Classification: Main-belt Asteroid          SPK-ID: 2004460
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 .1837113858200566 5.8555e-08  
a 2.92163127173037 1.5257e-08 au
q 2.384894341945569 1.6936e-07 au
i 27.05516772795166 7.4854e-06 deg
node 326.3383491936291 7.934e-06 deg
peri 30.84333230292356 1.6174e-05 deg
M 171.9769620461628 1.4534e-05 deg
tp 2458129.126585444719
(2018-Jan-10.62658544)
7.1416e-05 TDB
period 1824.049137207679
4.99
1.4288e-05
3.912e-08
d
yr
n .1973631042369292 1.546e-09 deg/d
Q 3.45836820151517 1.806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2433  
   data-arc span      23856 days (65.31 yr)  
   first obs. used      1955-03-24  
   last obs. used      2020-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39703  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:51:26  

Additional Information
 Earth MOID = 1.40267 au 
 Jupiter MOID = 2.02105 au 
 T_jup = 3.093 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456970.5 (2014-Nov-09.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803281111506018 5.8045e-08  
q 2.399665480503358 1.6712e-07 au
tp 2456301.557751292990
(2013-Jan-09.05775129)
7.1402e-05 TDB
node 326.3689844742751 7.9271e-06 deg
peri 30.82409030151337 1.6476e-05 deg
i 27.04597574997448 7.4814e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2433  
   data-arc span      23856 days (65.31 yr)  
   first obs. used      1955-03-24  
   last obs. used      2020-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39703  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:51:26  

Additional Information
 Jupiter MOID = 2.02105 au 
 T_jup = 3.093 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.369206122278297E-15 -9.674248751808151E-15 -2.286564242439406E-12 2.193448952249574E-14 -4.879892954013342E-13 1.059694135318853E-14
q -9.674248751808151E-15 2.793048209565914E-14 6.699251581537289E-12 -6.508966753560905E-14 1.433550184020025E-12 -3.167376628009326E-14
tp -2.286564242439406E-12 6.699251581537289E-12 5.098286240910674E-9 -2.977521646098732E-11 1.038847289094878E-9 -1.725190398027675E-11
node 2.193448952249574E-14 -6.508966753560905E-14 -2.977521646098732E-11 6.283954862155142E-11 -6.151274614413937E-11 2.725554140158641E-12
peri -4.879892954013342E-13 1.433550184020025E-12 1.038847289094878E-9 -6.151274614413937E-11 2.714585227944312E-10 -5.845978775112153E-12
i 1.059694135318853E-14 -3.167376628009326E-14 -1.725190398027675E-11 2.725554140158641E-12 -5.845978775112153E-12 5.597147536683819E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.9   n/a MPO389627  
diameter diameter 38.742 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.059   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4460 Bihoro (1990 DS)          Discovered 1990-Feb-28 by Endate and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 DS = 1937 PF = 1937 RV = 1942 PF = 1947 PB = 1970 ES2 = 1980 BF3 = 1980 FH9 = 1987 QG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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