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78595 (2002 SR20)
Classification: Main-belt Asteroid          SPK-ID: 2078595
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1505457396988708 3.5159e-08  
a 2.593584986676354 1.2936e-08 au
q 2.203131816385277 9.2601e-08 au
i 2.15513595123278 5.2969e-06 deg
node 88.35478535548064 0.00010578 deg
peri 240.3177074770119 0.00010761 deg
M 204.3294018195748 2.0701e-05 deg
tp 2460056.210271007403
(2023-Apr-21.71027101)
9.0239e-05 TDB
period 1525.629761423561
4.18
1.1414e-05
3.125e-08
d
yr
n .2359681287706953 1.7655e-09 deg/d
Q 2.984038156967432 1.4884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      8212 days (22.48 yr)  
   first obs. used      1998-10-20  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55964  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:06:28  

Additional Information
 Earth MOID = 1.19208 au 
 Jupiter MOID = 2.34671 au 
 T_jup = 3.401 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457220.5 (2015-Jul-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522689912655348 3.5227e-08  
q 2.197613573331489 9.2919e-08 au
tp 2457004.219681584374
(2014-Dec-12.71968158)
7.8956e-05 TDB
node 88.39348393779001 0.00010586 deg
peri 240.0416497503341 0.00010762 deg
i 2.155080382399154 5.2948e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      8212 days (22.48 yr)  
   first obs. used      1998-10-20  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55964  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:06:28  

Additional Information
 Jupiter MOID = 2.34671 au 
 T_jup = 3.401 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.240917547621351E-15 -3.250688956401676E-15 -4.276305232263134E-13 4.981510109205494E-15 -1.404971895730288E-13 -7.308392374210015E-17
q -3.250688956401676E-15 8.633943860763491E-15 1.382400088290422E-12 -1.525334842406988E-14 4.34286223062002E-13 1.925788756087065E-16
tp -4.276305232263134E-13 1.382400088290422E-12 6.234063004934827E-9 -3.747802679693936E-11 1.544270954846422E-9 -9.639448315641331E-13
node 4.981510109205494E-15 -1.525334842406988E-14 -3.747802679693936E-11 1.120606329228807E-8 -1.120678182363225E-8 -9.580615292484767E-11
peri -1.404971895730288E-13 4.34286223062002E-13 1.544270954846422E-9 -1.120678182363225E-8 1.158283747467478E-8 9.551419582180807E-11
i -7.308392374210015E-17 1.925788756087065E-16 -9.639448315641331E-13 -9.580615292484767E-11 9.551419582180807E-11 2.803478931565887E-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 16.11   n/a MPCxxxxx  

78595 (2002 SR20)          Discovered 2002-Sep-26 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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