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22961 (1999 UM14)
Classification: Main-belt Asteroid          SPK-ID: 2022961
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403202123738399 3.8717e-08  
a 2.356546981116496 7.1324e-09 au
q 2.025875808257298 9.0802e-08 au
i 3.128462907723262 3.5311e-06 deg
node 114.5263970528596 7.1392e-05 deg
peri 73.44644629645947 7.2243e-05 deg
M 156.5613092659514 1.2624e-05 deg
tp 2458625.861758630320
(2019-May-22.36175863)
4.5362e-05 TDB
period 1321.333909782743
3.62
5.9988e-06
1.642e-08
d
yr
n .2724519497567365 1.2369e-09 deg/d
Q 2.687218153975694 8.1332e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1717  
   data-arc span      10245 days (28.05 yr)  
   first obs. used      1992-11-21  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:15:08  

Additional Information
 Earth MOID = 1.02894 au 
 Jupiter MOID = 2.2696 au 
 T_jup = 3.539 
[ 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 14.79   n/a E2021B10  

22961 (1999 UM14)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UM14 = 1998 MB42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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