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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457466.5 (2016-Mar-19.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0758870042311917 1.8665e-08  
q 2.336394541598212 4.8559e-08 au
tp 2457762.468805903490
(2017-Jan-08.96880590)
5.7778e-05 TDB
node 83.01917364643026 1.8252e-05 deg
peri 44.13483493188154 2.2779e-05 deg
i 3.645373771243671 5.7273e-07 deg
  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
 Jupiter MOID = 2.30758 au 
 T_jup = 3.445 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.483660547821253E-16 -8.939985798764512E-16 -1.20734938106507E-14 1.410507493699072E-13 -1.220040979266661E-13 -4.252356036210255E-15
q -8.939985798764512E-16 2.35793046585058E-15 -4.277932313300975E-14 -3.537803077735261E-13 2.829892585225304E-13 1.055920026863995E-14
tp -1.20734938106507E-14 -4.277932313300975E-14 3.338259624202673E-9 -1.534716412090104E-11 7.992133624694363E-10 9.777563161409299E-12
node 1.410507493699072E-13 -3.537803077735261E-13 -1.534716412090104E-11 3.331308094504563E-10 -3.325615524623738E-10 -4.80930282891706E-12
peri -1.220040979266661E-13 2.829892585225304E-13 7.992133624694363E-10 -3.325615524623738E-10 5.188813106420211E-10 7.230218219730458E-12
i -4.252356036210255E-15 1.055920026863995E-14 9.777563161409299E-12 -4.80930282891706E-12 7.230218219730458E-12 3.280189901643156E-13

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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