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JPL Small-Body Database Browser
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117939 (6122 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2638584259176932 5.7362e-08  
a 2.581172642929699 1.4181e-08 au
q 1.900108492344457 1.5347e-07 au
i 12.2453178019019 5.9635e-06 deg
node 180.7680177301046 1.5857e-05 deg
peri 215.7640133267468 1.7913e-05 deg
M 23.86282853144684 8.1291e-06 deg
tp 2458500.097754264471
(2019-Jan-16.59775426)
3.3784e-05 TDB
period 1514.690868149111
4.15
1.2482e-05
3.417e-08
d
yr
n .2376722587889533 1.9586e-09 deg/d
Q 3.262236793514941 1.7922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      21305 days (58.33 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:17:43  

Additional Information
 Earth MOID = .918601 au 
 Jupiter MOID = 2.21776 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457171.5 (2015-May-29.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2611773305392677 5.7036e-08  
q 1.90810948090354 1.5215e-07 au
tp 2456982.836457133414
(2014-Nov-21.33645713)
3.0596e-05 TDB
node 180.8028085175765 1.5856e-05 deg
peri 215.4801056844624 1.7985e-05 deg
i 12.23627784265546 5.9603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      21305 days (58.33 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:17:43  

Additional Information
 Jupiter MOID = 2.21776 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.253064263039054E-15 -8.662029642532624E-15 -8.040225540092821E-13 1.396537508086856E-14 -1.724347584718029E-13 -1.557304395657485E-14
q -8.662029642532624E-15 2.314859682543039E-14 2.114151342829792E-12 -3.66762341120621E-14 4.573187454859453E-13 4.132510899006406E-14
tp -8.040225540092821E-13 2.114151342829792E-12 9.361385447186232E-10 -3.943758632220211E-12 2.636717286429723E-10 6.772987353029466E-12
node 1.396537508086856E-14 -3.66762341120621E-14 -3.943758632220211E-12 2.514054796264273E-10 -2.458793012494954E-10 1.426657008236495E-11
peri -1.724347584718029E-13 4.573187454859453E-13 2.636717286429723E-10 -2.458793012494954E-10 3.234546335871331E-10 -1.242859355064816E-11
i -1.557304395657485E-14 4.132510899006406E-14 6.772987353029466E-12 1.426657008236495E-11 -1.242859355064816E-11 3.552566650915849E-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 15.2   n/a MPO453650  
diameter diameter 2.764 km 0.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.184   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117939 (6122 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 6122 P-L = 2004 GX71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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