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JPL Small-Body Database Browser
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17741 (1998 BS23)
Classification: Main-belt Asteroid          SPK-ID: 2017741
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140973852060899 3.9116e-08  
a 2.834754870205441 1.3831e-08 au
q 2.511316751814772 1.1135e-07 au
i .8864443807891269 3.8816e-06 deg
node 300.7281580412503 0.00028146 deg
peri 87.59102308107465 0.00028216 deg
M 334.4912491929924 1.8683e-05 deg
tp 2459124.026001163602
(2020-Oct-01.52600116)
9.0646e-05 TDB
period 1743.298241271795
4.77
1.2759e-05
3.493e-08
d
yr
n .2065051128241647 1.5114e-09 deg/d
Q 3.15819298859611 1.5409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      14840 days (40.63 yr)  
   first obs. used      1977-10-18  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54049  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:45:05  

Additional Information
 Earth MOID = 1.51624 au 
 Jupiter MOID = 2.27596 au 
 T_jup = 3.302 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456105.5 (2012-Jun-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179678435905767 3.9987e-08  
q 2.498975218583655 1.1443e-07 au
tp 2455629.622856335008
(2011-Mar-09.12285633)
8.2666e-05 TDB
node 301.2859109238711 0.00028232 deg
peri 85.72734216444293 0.00028293 deg
i .8842889469731801 3.887e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      14840 days (40.63 yr)  
   first obs. used      1977-10-18  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54049  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:45:05  

Additional Information
 Jupiter MOID = 2.27596 au 
 T_jup = 3.302 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.598961706947824E-15 -4.550295393616956E-15 -1.29812482573835E-12 4.166624882112852E-15 -3.096420032914552E-13 -2.676905653217003E-16
q -4.550295393616956E-15 1.309474111775457E-14 3.649126770385295E-12 -8.211699556821213E-15 8.753565280449935E-13 8.602815357272641E-16
tp -1.29812482573835E-12 3.649126770385295E-12 6.833594230058544E-9 -1.787385665707439E-11 1.560469066684297E-9 3.346237180976731E-13
node 4.166624882112852E-15 -8.211699556821213E-15 -1.787385665707439E-11 7.970613407698843E-8 -7.969993767980529E-8 3.749750826041665E-10
peri -3.096420032914552E-13 8.753565280449935E-13 1.560469066684297E-9 -7.969993767980529E-8 8.005035943315653E-8 -3.748449902440534E-10
i -2.676905653217003E-16 8.602815357272641E-16 3.346237180976731E-13 3.749750826041665E-10 -3.748449902440534E-10 1.510893445592627E-11

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 MPO347663  
diameter diameter 3.637 km 0.523 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17741 (1998 BS23)          Discovered 1998-Jan-26 by Spacewatch at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BS23 = 1977 UJ4 = 2000 NW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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