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JPL Small-Body Database Browser
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173572 (2001 BC34)
Classification: Main-belt Asteroid          SPK-ID: 2173572
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09148045891220639 3.3288e-08  
a 2.395236087063336 1.2204e-08 au
q 2.176118790615705 7.7849e-08 au
i 4.877817171854116 3.7104e-06 deg
node 124.3513246488914 5.5414e-05 deg
peri 359.8396793777046 6.2251e-05 deg
M 94.49083991336317 2.9031e-05 deg
tp 2458645.107609385777
(2019-Jun-10.60760939)
0.00010817 TDB
period 1354.007020558047
3.71
1.0349e-05
2.833e-08
d
yr
n .2658774988121021 2.0321e-09 deg/d
Q 2.614353383510968 1.3321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      7037 days (19.27 yr)  
   first obs. used      2001-01-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:28:33  

Additional Information
 Earth MOID = 1.19163 au 
 Jupiter MOID = 2.42576 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457218.5 (2015-Jul-15.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09168150586558335 3.349e-08  
q 2.17569262551783 7.8432e-08 au
tp 2457292.929489334096
(2015-Sep-27.42948933)
0.00010421 TDB
node 124.3792400070368 5.5388e-05 deg
peri .3924464312636975 6.214e-05 deg
i 4.878706457070138 3.7115e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      7037 days (19.27 yr)  
   first obs. used      2001-01-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:28:33  

Additional Information
 Jupiter MOID = 2.42576 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.121568810150112E-15 -2.601811152067974E-15 1.004421785518534E-12 5.464940478696197E-15 2.736251762156233E-13 1.719333938234156E-16
q -2.601811152067974E-15 6.151569781180237E-15 -2.10477657260344E-12 -1.172384619649702E-14 -5.77216476335971E-13 -3.153312098273743E-16
tp 1.004421785518534E-12 -2.10477657260344E-12 1.085883459020008E-8 3.62881541801637E-11 2.961311161009561E-9 1.302237680914399E-12
node 5.464940478696197E-15 -1.172384619649702E-14 3.62881541801637E-11 3.067846399055779E-9 -3.04650651697606E-9 4.253828535532403E-11
peri 2.736251762156233E-13 -5.77216476335971E-13 2.961311161009561E-9 -3.04650651697606E-9 3.861338949076056E-9 -4.202347966887459E-11
i 1.719333938234156E-16 -3.153312098273743E-16 1.302237680914399E-12 4.253828535532403E-11 -4.202347966887459E-11 1.377552389834266E-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 16.2   n/a MPO226978  

173572 (2001 BC34)          Discovered 2001-Jan-20 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1939-Jun-11 02:27 00:01 Iris 0.0401920471336219 0.0401769806571455 0.0402071139418282 5.1420798642128 5.14207983639684 2429425.601822423 1.2691195697953 772.918986212475 64.4578635282917 13.7127108843973 23359.1470401007 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:28:53 2020-May-21 03:28
1943-Feb-20 13:35 00:01 Iris 0.0484753671745788 0.0484609251877228 0.0484898092960655 5.673723601857 5.67372358095519 2430776.066314160 1.0890280260244 731.287987920771 66.6735281207315 -10.1244259720016 21460.4952986731 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:28:53 2020-May-21 03:28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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