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21524 (1998 MB16)
Classification: Main-belt Asteroid          SPK-ID: 2021524
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04145246497754185 3.1444e-08  
a 2.926430135399331 1.4619e-08 au
q 2.805122392702467 9.4816e-08 au
i 3.594773260772854 3.4735e-06 deg
node 77.65835819093644 5.5783e-05 deg
peri 85.42968489720516 7.2384e-05 deg
M 252.1050911944636 4.7936e-05 deg
tp 2459748.529729792406
(2022-Jun-18.02972979)
0.00024526 TDB
period 1828.545062129406
5.01
1.3702e-05
3.751e-08
d
yr
n .196877838810692 1.4753e-09 deg/d
Q 3.047737878096195 1.5225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      11020 days (30.17 yr)  
   first obs. used      1990-11-18  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49527  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:53:03  

Additional Information
 Earth MOID = 1.81506 au 
 Jupiter MOID = 1.92271 au 
 T_jup = 3.274 
[ 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 14.3   n/a MPO435900  

21524 (1998 MB16)          Discovered 1998-Jun-21 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 MB16 = 1997 EG37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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