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21756 (1999 RB192)
Classification: Main-belt Asteroid          SPK-ID: 2021756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177377423791906 3.9298e-08  
a 2.169240439678009 7.0387e-09 au
q 1.913838967632677 8.8057e-08 au
i 3.984046437445515 4.3433e-06 deg
node .03711586357200949 5.6103e-05 deg
peri 286.9887334688293 5.936e-05 deg
M 321.4177708735077 1.8045e-05 deg
tp 2459521.567589660032
(2021-Nov-03.06758966)
5.8488e-05 TDB
period 1166.970734894518
3.19
5.6798e-06
1.555e-08
d
yr
n .308491026583062 1.5015e-09 deg/d
Q 2.42464191172334 7.8674e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      11772 days (32.23 yr)  
   first obs. used      1989-04-03  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:10:51  

Additional Information
 Earth MOID = .901908 au 
 Jupiter MOID = 2.70772 au 
 T_jup = 3.678 
[ 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 15.62   n/a MPO614063  

21756 (1999 RB192)          Discovered 1999-Sep-13 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RB192 = 1989 GU2 = 1996 RH22 = 1999 NG28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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