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JPL Small-Body Database Browser
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52157 (4126 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2052157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1523753896004044 4.1583e-08  
a 3.114040927413193 2.1631e-08 au
q 2.639537727867003 1.3136e-07 au
i 5.521389046860303 6.4469e-06 deg
node 22.43748108257431 4.7487e-05 deg
peri 49.87311948579707 5.3839e-05 deg
M 356.939687913319 2.2502e-05 deg
tp 2458617.562714256219
(2019-May-14.06271426)
0.00012547 TDB
period 2007.173437955036
5.50
2.0914e-05
5.726e-08
d
yr
n .1793566979277974 1.8688e-09 deg/d
Q 3.588544126959383 2.4927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      17790 days (48.71 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55593  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:57:55  

Additional Information
 Earth MOID = 1.65804 au 
 Jupiter MOID = 1.73649 au 
 T_jup = 3.193 
[ 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 14.5   n/a MPO493235  
diameter diameter 7.510 km 0.456 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52157 (4126 T-1)          Discovered 1971-Mar-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4126 T-1 = 1999 GK13 = 2001 RX99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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