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101042 (1998 QN99)
Classification: Main-belt Asteroid          SPK-ID: 2101042
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893534374329578 3.0957e-08  
a 2.240544028092071 7.5053e-09 au
q 1.816289314652952 6.8429e-08 au
i 4.43892464168296 3.6116e-06 deg
node 144.5204585945502 4.1823e-05 deg
peri 157.8970187262121 4.2775e-05 deg
M 263.8189987762203 9.0291e-06 deg
tp 2459527.776968339133
(2021-Nov-09.27696834)
3.1135e-05 TDB
period 1224.979019795839
3.35
6.1551e-06
1.685e-08
d
yr
n .293882584258463 1.4767e-09 deg/d
Q 2.66479874153119 8.9265e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      8240 days (22.56 yr)  
   first obs. used      1998-08-23  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:55  

Additional Information
 Earth MOID = .799942 au 
 Jupiter MOID = 2.56664 au 
 T_jup = 3.607 
[ 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 15.84   n/a E2021B55  

101042 (1998 QN99)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QN99 = 2001 KY12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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