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19895 (5161 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2019895
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1688829180326796 1.3498e-08  
a 2.681082320942509 1.2577e-08 au
q 2.228293315095909 4.0438e-08 au
i 12.28306540742968 9.5723e-07 deg
node 337.9262347827055 5.9578e-06 deg
peri 88.19094155594819 8.2358e-06 deg
M 233.3944319239626 9.0339e-06 deg
tp 2459764.415401055610
(2022-Jul-03.91540106)
4.2492e-05 TDB
period 1603.480379773623
4.39
1.1283e-05
3.089e-08
d
yr
n .2245116339065054 1.5798e-09 deg/d
Q 3.13387132678911 1.4701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1440  
   data-arc span      17138 days (46.92 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:38  

Additional Information
 Earth MOID = 1.28114 au 
 Jupiter MOID = 2.27074 au 
 T_jup = 3.323 
[ 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 13.78   n/a E2021B10  
diameter diameter 4.980 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19895 (5161 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 5161 T-2 = 1988 CG1 = 1988 EK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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