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123801 (2001 BK54)
Classification: Main-belt Asteroid          SPK-ID: 2123801
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 .133734393228371 5.6557e-08  
a 3.118211751625244 2.753e-08 au
q 2.701199595064066 1.6838e-07 au
i 10.65178301736892 5.8844e-06 deg
node 326.2856108799522 2.4652e-05 deg
peri 311.058921620625 3.5457e-05 deg
M 62.83357375157372 2.9421e-05 deg
tp 2458649.468497009125
(2019-Jun-14.96849701)
0.00016194 TDB
period 2011.207281896007
5.51
2.6635e-05
7.292e-08
d
yr
n .178996965275812 2.3705e-09 deg/d
Q 3.535223908186422 3.1212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1998-10-12  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:48:53  

Additional Information
 Earth MOID = 1.69936 au 
 Jupiter MOID = 1.74387 au 
 T_jup = 3.177 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457473.5 (2016-Mar-26.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134314300872262 5.6438e-08  
q 2.699546780579283 1.6827e-07 au
tp 2456642.820150500312
(2013-Dec-16.32015050)
0.00014961 TDB
node 326.4183758979434 2.4659e-05 deg
peri 311.9148320479192 3.5357e-05 deg
i 10.64918750782299 5.8859e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1998-10-12  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:48:53  

Additional Information
 Jupiter MOID = 1.74387 au 
 T_jup = 3.177 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.185295788216404E-15 -9.417843808591905E-15 4.502548593385053E-12 1.163655710941699E-14 6.400339681728652E-13 -6.949887063091754E-16
q -9.417843808591905E-15 2.831646415816894E-14 -1.28248784143002E-11 -3.257692501847061E-14 -1.771951000075636E-12 2.34517182200374E-15
tp 4.502548593385053E-12 -1.28248784143002E-11 2.238168770809056E-8 3.245108610782648E-11 3.792285201678158E-9 -1.421950276587886E-11
node 1.163655710941699E-14 -3.257692501847061E-14 3.245108610782648E-11 6.080481236740925E-10 -5.918606352815629E-10 4.67313926883027E-11
peri 6.400339681728652E-13 -1.771951000075636E-12 3.792285201678158E-9 -5.918606352815629E-10 1.250102495911788E-9 -4.844434122913677E-11
i -6.949887063091754E-16 2.34517182200374E-15 -1.421950276587886E-11 4.67313926883027E-11 -4.844434122913677E-11 3.46435796710162E-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 14.4   n/a MPO436600  

123801 (2001 BK54)          Discovered 2001-Jan-18 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ hide close-approach data ]
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
1905-Mar-25 23:48 00:05 Jupiter 1.8539927981963 1.85399171461457 1.85399388178814 2.44259814518445 2.24778952589827 2416930.491469563 5.43150377669916 286.478650792318 33.7266559909733 74.974986140562 1989617.23804463 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
1967-Aug-14 12:01 00:02 Jupiter 1.94191796680466 1.94191655173539 1.94191938187394 3.86417422304751 3.74959808334309 2439717.000997990 1.9525770081762 116.776822463635 59.1565425047196 -76.7391318623879 1472779.91490406 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
1977-Nov-19 23:35 00:02 Jupiter 1.76168636167772 1.76168567533415 1.7616870480211 2.42705893181762 2.22013757301355 2443467.482721366 1.75317233971418 131.832905394798 22.6264611777465 -74.9971132333395 1688044.31982163 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
1987-Nov-26 01:30 00:01 Jupiter 1.90650527773981 1.90650457475371 1.90650598072699 3.09860644987699 2.95174551121716 2447125.562557643 1.25740325835803 121.337265376987 21.4808913821628 -86.6998219111559 2154589.09864691 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
2050-May-01 23:51 00:02 Jupiter 1.84970751112183 1.84970692797274 1.84970809427102 3.60404445016935 3.47466424057355 2469928.493416865 1.49341252627162 132.172044086623 23.4361988868644 -86.1912699563364 2407017.10490968 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
2060-Jul-20 07:47 00:02 Jupiter 1.77751125253292 1.77751041037651 1.77751209468994 2.13244243859642 1.89585535919134 2473660.824083015 2.30495147126842 98.4840737072501 41.8932582103202 -49.3982034240135 1814792.57807778 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
2070-Aug-05 17:51 00:03 Jupiter 1.96333728932377 1.96333655158967 1.96333802706054 3.75089321019578 3.63405563253892 2477329.243442747 2.57233241473998 198.972779271231 24.6269753383659 -87.5876032954264 2238974.45257293 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
2133-Jan-18 01:54 00:05 Jupiter 1.78911602440772 1.7891149641262 1.78911708470144 3.37674121730663 3.23349961761589 2500139.579453538 4.98873855672916 334.40276982934 29.7954484147608 85.9586046762234 2061616.05510522 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48
2143-Mar-19 04:36 00:07 Jupiter 1.82095078973308 1.82094926074075 1.82095231872593 2.02362812661107 1.77897802835985 2503851.691985965 6.58674375293791 104.058674198966 58.7950495031592 -3.9485181519466 2326171.64315312 T 20 CATAB v2.0f-lin.ifort 2020-Dec-17 22:48:54 2020-Dec-17 22:48

Alternate Designations
 2001 BK54 = 2003 QW32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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