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74657 (1999 RG88)
Classification: Main-belt Asteroid          SPK-ID: 2074657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09963285366242655 6.0127e-08  
a 2.299828103717139 6.4968e-09 au
q 2.070689666810753 1.3828e-07 au
i 3.561037646015774 6.0447e-06 deg
node 179.8274652733606 5.2474e-05 deg
peri 215.4053062170131 5.5828e-05 deg
M 2.423995941389628 1.7834e-05 deg
tp 2459191.922299475922
(2020-Dec-08.42229948)
6.3111e-05 TDB
period 1273.918052394908
3.49
5.3981e-06
1.478e-08
d
yr
n .2825927455248917 1.1975e-09 deg/d
Q 2.528966540623524 7.1441e-09 au
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      9806 days (26.85 yr)  
   first obs. used      1994-03-09  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51033  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:15:00  

Additional Information
 Earth MOID = 1.07693 au 
 Jupiter MOID = 2.8257 au 
 T_jup = 3.583 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457462.5 (2016-Mar-15.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009103685053703 6.0325e-08  
q 2.067616957166164 1.3895e-07 au
tp 2457917.024280245694
(2017-Jun-12.52428025)
6.2197e-05 TDB
node 179.9117001706263 5.2474e-05 deg
peri 215.1909146130237 5.57e-05 deg
i 3.561247008073885 6.0476e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      9806 days (26.85 yr)  
   first obs. used      1994-03-09  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51033  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:15:00  

Additional Information
 Jupiter MOID = 2.8257 au 
 T_jup = 3.583 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.639114257131427E-15 -8.374549822095404E-15 -2.020462780015485E-12 4.033185260771385E-14 -5.848175650489857E-13 2.314964435343905E-15
q -8.374549822095404E-15 1.930615008148802E-14 4.606902763384762E-12 -9.240353399666946E-14 1.329114106175346E-12 -5.187738457506871E-15
tp -2.020462780015485E-12 4.606902763384762E-12 3.868420182016654E-9 -3.057957725536786E-11 1.1693404314267E-9 -1.075883855317529E-12
node 4.033185260771385E-14 -9.240353399666946E-14 -3.057957725536786E-11 2.75350354574504E-9 -2.756290297758335E-9 1.473521216878791E-10
peri -5.848175650489857E-13 1.329114106175346E-12 1.1693404314267E-9 -2.756290297758335E-9 3.102448853505176E-9 -1.473980586802223E-10
i 2.314964435343905E-15 -5.187738457506871E-15 -1.075883855317529E-12 1.473521216878791E-10 -1.473980586802223E-10 3.657333250747264E-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 16.18   n/a E2021B10  

74657 (1999 RG88)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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