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312990 (1999 TQ77)
Classification: Main-belt Asteroid          SPK-ID: 2312990
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921464767714598 5.7251e-08  
a 2.44199714479899 1.2635e-08 au
q 1.972775997139899 1.4036e-07 au
i .5110387210687709 3.5516e-06 deg
node 259.8151694388939 0.00078518 deg
peri 127.5157095423607 0.0007853 deg
M 148.8053567165815 1.4415e-05 deg
tp 2458424.354440345798
(2018-Nov-01.85444035)
5.4835e-05 TDB
period 1393.850369718582
3.82
1.0818e-05
2.962e-08
d
yr
n .2582773645012439 2.0046e-09 deg/d
Q 2.91121829245808 1.5063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      7504 days (20.54 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:28:51  

Additional Information
 Earth MOID = .977393 au 
 Jupiter MOID = 2.53813 au 
 T_jup = 3.475 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO460291  

312990 (1999 TQ77)          Discovered 1999-Oct-10 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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