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22916 (1999 TX40)
Classification: Main-belt Asteroid          SPK-ID: 2022916
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596196179839552 2.7102e-08  
a 2.61087144285246 1.0456e-08 au
q 2.194125140539132 6.9719e-08 au
i 13.16114698356084 4.6376e-06 deg
node 23.76105458156438 1.28e-05 deg
peri 273.516644709905 2.0386e-05 deg
M 64.07497697524268 1.4568e-05 deg
tp 2458926.239908242409
(2020-Mar-17.73990824)
6.2543e-05 TDB
period 1540.907819145709
4.22
9.2568e-06
2.534e-08
d
yr
n .2336285114054303 1.4035e-09 deg/d
Q 3.027617745165787 1.2125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1286  
   data-arc span      9249 days (25.32 yr)  
   first obs. used      1995-10-17  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48186  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:14:45  

Additional Information
 Earth MOID = 1.225 au 
 Jupiter MOID = 2.30324 au 
 T_jup = 3.355 
[ 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 14.95   n/a E2021B10  
diameter diameter 2.942 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22916 (1999 TX40)          Discovered 1999-Oct-05 by CSS at Catalina
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TX40 = 1995 UU82 = 1998 HB78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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