Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
541839 (2012 BP21)
Classification: Main-belt Asteroid          SPK-ID: 2541839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3154906351605887 8.4253e-08  
a 2.583622312820774 2.9355e-08 au
q 1.768513668333879 2.3553e-07 au
i 5.298647585081545 6.5334e-06 deg
node 210.2324873752519 3.3933e-05 deg
peri 215.8656784976702 3.8696e-05 deg
M 124.5193541221247 1.5844e-05 deg
tp 2458871.841968696977
(2020-Jan-23.34196870)
5.8929e-05 TDB
period 1516.847662764486
4.15
2.5852e-05
7.078e-08
d
yr
n .2373343143397094 4.0449e-09 deg/d
Q 3.398730957307669 3.8616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      6840 days (18.73 yr)  
   first obs. used      2002-08-16  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44902  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:01:29  

Additional Information
 Earth MOID = .784923 au 
 Jupiter MOID = 1.9504 au 
 T_jup = 3.346 
[ 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 17.1   n/a MPO535744  

541839 (2012 BP21)          Discovered 2008-Feb-09 by CSS at Catalina
Reference: Last Updated: 2019-12-13

[ 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
1959-Dec-07 17:08 00:03 Jupiter 1.94055739067302 1.94055689871278 1.94055788265035 1.30644094938018 0.913137277337755 2436910.213591720 2.72181565265057 875.473031842316 150.019322016338 55.2627044357751 2007109.54912872 T 32 CATAB v2.0g-lin.ifort 2021-Jul-09 09:01:30 2021-Jul-09 09:01
2043-Jan-27 08:32 < 00:01 Jupiter 1.94349927666378 1.94349878872639 1.94349976463077 1.25657681332762 0.841034147883755 2467276.855252844 0.99248882604574 1005.15651449066 58.7207331001799 59.5197793289199 8562944.51284046 T 32 CATAB v2.0g-lin.ifort 2021-Jul-09 09:01:30 2021-Jul-09 09:01
2126-Mar-18 23:48 00:05 Jupiter 1.94145668299187 1.94145599392369 1.9414573720807 1.20051289885068 0.754100335872902 2497642.491808748 4.69449873371651 1216.78621759488 219.584932138432 58.3136271872576 3919961.38287399 T 32 CATAB v2.0g-lin.ifort 2021-Jul-09 09:01:30 2021-Jul-09 09:01

Alternate Designations
 2012 BP21 = 2008 CN157 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-27 06:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin