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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15244153982848 3.6649e-08  
a 3.112703730473469 1.9205e-08 au
q 2.638198380770239 1.1144e-07 au
i 5.522185012710184 5.1235e-06 deg
node 22.42003475126015 4.6231e-05 deg
peri 49.68385062496775 5.1966e-05 deg
M 104.7579695466441 2.0569e-05 deg
tp 2458616.800021180399
(2019-May-13.30002118)
0.00011481 TDB
period 2005.880729499
5.49
1.8564e-05
5.083e-08
d
yr
n .1794722860166844 1.661e-09 deg/d
Q 3.587209080176699 2.2133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1091  
   data-arc span      18261 days (50.00 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51806  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:17:08  

Additional Information
 Earth MOID = 1.65635 au 
 Jupiter MOID = 1.73878 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 14.51   n/a E2021B10  
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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