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52128 (4693 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2052128
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628719067762864 3.0692e-08  
a 2.297295098578781 7.4377e-09 au
q 1.923130265445438 6.9204e-08 au
i 2.367076611791615 4.6319e-06 deg
node 339.0619341755958 7.7715e-05 deg
peri 297.4241674945779 7.9063e-05 deg
M 233.150941101091 1.4195e-05 deg
tp 2459844.634474081748
(2022-Sep-22.13447408)
5.073e-05 TDB
period 1271.81401320445
3.48
6.1765e-06
1.691e-08
d
yr
n .2830602558725923 1.3747e-09 deg/d
Q 2.671459931712124 8.6492e-09 au
  Orbit Determination Parameters
   # obs. used (total)      933  
   data-arc span      22083 days (60.46 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:36:59  

Additional Information
 Earth MOID = .907979 au 
 Jupiter MOID = 2.44583 au 
 T_jup = 3.575 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457377.5 (2015-Dec-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1629570929149169 3.0656e-08  
q 1.922583707205654 6.9128e-08 au
tp 2457301.938307651672
(2015-Oct-06.43830765)
4.8672e-05 TDB
node 339.1234343605415 7.7701e-05 deg
peri 297.4764983420835 7.905e-05 deg
i 2.367535073096859 4.6324e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      933  
   data-arc span      22083 days (60.46 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:36:59  

Additional Information
 Jupiter MOID = 2.44583 au 
 T_jup = 3.575 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.397608511682103E-16 -2.111096684171332E-15 4.24373535186284E-13 3.32089394360345E-15 1.196392362707999E-13 -6.880935503013325E-17
q -2.111096684171332E-15 4.778672085907003E-15 -9.632291552105559E-13 -7.859525066431693E-15 -2.712480400727357E-13 1.53204664792634E-16
tp 4.24373535186284E-13 -9.632291552105559E-13 2.368926565108692E-9 -8.39097137740914E-12 7.147163470492861E-10 4.117934258330475E-13
node 3.32089394360345E-15 -7.859525066431693E-15 -8.39097137740914E-12 6.03751575481237E-9 -6.034267722870583E-9 3.680498943630314E-11
peri 1.196392362707999E-13 -2.712480400727357E-13 7.147163470492861E-10 -6.034267722870583E-9 6.248944189548727E-9 -3.663848529571329E-11
i -6.880935503013325E-17 1.53204664792634E-16 4.117934258330475E-13 3.680498943630314E-11 -3.663848529571329E-11 2.145895213718633E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.66   n/a MPCxxxxx  

52128 (4693 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4693 P-L = 1998 MQ48 = 2001 HJ45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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