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74905 (1999 TQ125)
Classification: Main-belt Asteroid          SPK-ID: 2074905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2242921784834389 4.1523e-08  
a 2.295426423752427 1.079e-08 au
q 1.780580230620546 9.7807e-08 au
i 5.325191157247199 4.4077e-06 deg
node 229.4500587314288 5.1458e-05 deg
peri 37.79617384244324 5.2345e-05 deg
M 56.85047188251666 1.1993e-05 deg
tp 2458799.902708398089
(2019-Nov-12.40270840)
4.1727e-05 TDB
period 1270.262542867234
3.48
8.9564e-06
2.452e-08
d
yr
n .2834059793555816 1.9983e-09 deg/d
Q 2.810272616884308 1.321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      14330 days (39.23 yr)  
   first obs. used      1981-05-08  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:14:35  

Additional Information
 Earth MOID = .768409 au 
 Jupiter MOID = 2.28585 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456915.5 (2014-Sep-15.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2246648571183036 4.1606e-08  
q 1.779944382514476 9.7967e-08 au
tp 2457528.589629807030
(2016-May-20.08962981)
3.8896e-05 TDB
node 229.5763440423518 5.1441e-05 deg
peri 37.62159277413693 5.2317e-05 deg
i 5.325963411294887 4.4085e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      14330 days (39.23 yr)  
   first obs. used      1981-05-08  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:14:35  

Additional Information
 Jupiter MOID = 2.28585 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.731063218258415E-15 -4.06224386726255E-15 3.595959264694418E-14 1.487598998241312E-14 5.324415871740479E-14 -2.403513705022253E-16
q -4.06224386726255E-15 9.597460075756756E-15 -1.513087041404985E-14 -3.263720216123567E-14 -1.197509030095665E-13 7.376166671828926E-16
tp 3.595959264694418E-14 -1.513087041404985E-14 1.512859953688989E-9 1.837657780237224E-11 3.884024633583208E-10 1.866288474172885E-12
node 1.487598998241312E-14 -3.263720216123567E-14 1.837657780237224E-11 2.646180276995061E-9 -2.629285172100989E-9 -3.539513231558677E-12
peri 5.324415871740479E-14 -1.197509030095665E-13 3.884024633583208E-10 -2.629285172100989E-9 2.737023311585015E-9 3.96954811263658E-12
i -2.403513705022253E-16 7.376166671828926E-16 1.866288474172885E-12 -3.539513231558677E-12 3.96954811263658E-12 1.943524156315408E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO474635  

74905 (1999 TQ125)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TQ125 = 1981 JV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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