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16870 (1998 BB)
Classification: Main-belt Asteroid          SPK-ID: 2016870
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1531446130938141 3.4115e-08  
a 2.299023488478186 7.0222e-09 au
q 1.946940425841603 7.8798e-08 au
i 3.574453101081633 3.7086e-06 deg
node 34.42962140170716 4.4726e-05 deg
peri 1.060963855385617 4.5722e-05 deg
M 269.575944537518 1.0732e-05 deg
tp 2459520.312194612069
(2021-Nov-01.81219461)
3.8818e-05 TDB
period 1273.2495735951
3.49
5.8336e-06
1.597e-08
d
yr
n .2827411117708192 1.2954e-09 deg/d
Q 2.651106551114768 8.0977e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1923  
   data-arc span      9300 days (25.46 yr)  
   first obs. used      1995-02-27  
   last obs. used      2020-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53422  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:45:00  

Additional Information
 Earth MOID = .952569 au 
 Jupiter MOID = 2.76731 au 
 T_jup = 3.574 
[ 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 14.67   n/a E2021B10  
diameter diameter 2.908 km 0.543 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.302   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

16870 (1998 BB)          Discovered 1998-Jan-16 by Kobayashi, T. at Oizumi
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BB = 1999 JM37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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