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21335 (1997 BO3)
Classification: Main-belt Asteroid          SPK-ID: 2021335
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07733887080266558 1.8635e-08  
a 2.528501674522133 8.6607e-09 au
q 2.332950210191942 4.852e-08 au
i 3.646502302285908 5.7266e-07 deg
node 82.99385203767889 1.8236e-05 deg
peri 43.79491073876109 2.2604e-05 deg
M 352.8978737641319 1.3738e-05 deg
tp 2459229.472047050806
(2021-Jan-14.97204705)
5.6037e-05 TDB
period 1468.565411526398
4.02
7.5453e-06
2.066e-08
d
yr
n .2451371911488934 1.2595e-09 deg/d
Q 2.724053138852324 9.3305e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2103  
   data-arc span      11705 days (32.05 yr)  
   first obs. used      1989-03-03  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4419  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:11:15  

Additional Information
 Earth MOID = 1.3498 au 
 Jupiter MOID = 2.30758 au 
 T_jup = 3.445 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.79   n/a MPCxxxxx  
rotation period rot_per 6. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

21335 (1997 BO3)          Discovered 1997-Jan-31 by Kobayashi, T. at Oizumi
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 BO3 = 1989 EZ11 = 1995 SP54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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