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JPL Small-Body Database Browser
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91004 (1998 BH16)
Classification: Main-belt Asteroid          SPK-ID: 2091004
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509393940483738 6.4018e-08  
a 2.312900813090835 9.1329e-09 au
q 1.73250288455983 1.4646e-07 au
i 24.33649918464339 8.4447e-06 deg
node 322.6950900010938 9.6248e-06 deg
peri 83.24718634328227 2.337e-05 deg
M 189.6259397621492 1.6917e-05 deg
tp 2459608.543867401311
(2022-Jan-29.04386740)
6.1149e-05 TDB
period 1284.795302517779
3.52
7.6099e-06
2.083e-08
d
yr
n .2802002772694744 1.6596e-09 deg/d
Q 2.89329874162184 1.1425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      10867 days (29.75 yr)  
   first obs. used      1989-08-02  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42498  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:02  

Additional Information
 Earth MOID = .899679 au 
 Jupiter MOID = 2.82066 au 
 T_jup = 3.426 
[ 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 14.4   n/a MPO474788  
diameter diameter 3.804 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.280   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91004 (1998 BH16)          Discovered 1998-Jan-26 by NEAT at Haleakala
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 BH16 = 1991 CN4 = 2000 SW280 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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