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JPL Small-Body Database Browser
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523001 (2016 PH121)
Classification: Main-belt Asteroid          SPK-ID: 2523001
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06020708100174033 1.3101e-07  
a 2.852820660959208 5.4729e-08 au
q 2.681060656341399 3.9279e-07 au
i 3.242187319144512 9.5113e-06 deg
node 100.3995443471557 0.00023316 deg
peri 231.9687509719135 0.00024345 deg
M 289.9274806570733 6.7388e-05 deg
tp 2459343.074762191292
(2021-May-08.57476219)
0.00032947 TDB
period 1759.989729858542
4.82
5.0646e-05
1.387e-07
d
yr
n .2045466481380745 5.8861e-09 deg/d
Q 3.024580665577018 5.8024e-08 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      5525 days (15.13 yr)  
   first obs. used      2004-02-17  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57472  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 07:14:36  

Additional Information
 Earth MOID = 1.67172 au 
 Jupiter MOID = 2.19359 au 
 T_jup = 3.300 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457153.5 (2015-May-11.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0593871052932591 1.3154e-07  
q 2.682239204420415 3.9345e-07 au
tp 2457590.414475596798
(2016-Jul-20.91447560)
0.00033311 TDB
node 100.407905875229 0.00023323 deg
peri 233.3476976990919 0.00024356 deg
i 3.242098526719383 9.5074e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      5525 days (15.13 yr)  
   first obs. used      2004-02-17  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57472  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 07:14:36  

Additional Information
 Jupiter MOID = 2.19359 au 
 T_jup = 3.300 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.730285443249039E-14 -5.134006123308856E-14 1.342386907828166E-11 1.167034611904512E-13 2.886480756135302E-12 -1.241543449463588E-14
q -5.134006123308856E-14 1.5480393646932E-13 -4.054909564836528E-11 -3.372955070260896E-13 -8.853598273911387E-12 3.80824585609031E-14
tp 1.342386907828166E-11 -4.054909564836528E-11 1.109600142682275E-7 2.399665318495625E-10 2.367670793401164E-8 -7.928438454822673E-12
node 1.167034611904512E-13 -3.372955070260896E-13 2.399665318495625E-10 5.439592079484306E-8 -5.425755241948743E-8 1.244390509402511E-9
peri 2.886480756135302E-12 -8.853598273911387E-12 2.367670793401164E-8 -5.425755241948743E-8 5.932353146564857E-8 -1.244237818045085E-9
i -1.241543449463588E-14 3.80824585609031E-14 -7.928438454822673E-12 1.244390509402511E-9 -1.244237818045085E-9 9.039017736130833E-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 16.8   n/a MPO448123  

523001 (2016 PH121)          Discovered 2007-Nov-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2018-05-31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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