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21030 (1989 TZ11)
Classification: Mars-crossing Asteroid          SPK-ID: 2021030
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .362093332859067 5.3251e-08  
a 2.353338874002351 8.27e-09 au
q 1.501210557768036 1.2303e-07 au
i 8.447577913043215 4.3526e-06 deg
node 69.23591173079681 2.6816e-05 deg
peri 280.2470677987804 2.7536e-05 deg
M 242.3236754126967 9.1676e-06 deg
tp 2459631.534194684757
(2022-Feb-21.03419468)
3.4918e-05 TDB
period 1318.636613020586
3.61
6.9508e-06
1.903e-08
d
yr
n .2730092555031914 1.4391e-09 deg/d
Q 3.205467190236666 1.1264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1115  
   data-arc span      15270 days (41.81 yr)  
   first obs. used      1978-07-29  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:59:19  

Additional Information
 Earth MOID = .524843 au 
 Jupiter MOID = 2.29174 au 
 T_jup = 3.451 
[ 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 14.97   n/a E2021B10  
rotation period rot_per 4.089 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]

21030 (1989 TZ11)          Discovered 1989-Oct-02 by Bus, S. J. at Cerro Tololo
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 TZ11 = 1989 RW5 = 1989 SQ14 = 2000 RR52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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