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30701 (2381 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2030701
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718154833005316 4.3921e-08  
a 2.259856556209987 7.9567e-09 au
q 1.871578209814893 9.759e-08 au
i 2.266992479045031 3.9183e-06 deg
node 247.1741118471738 9.94e-05 deg
peri 100.9477141409641 0.0001002 deg
M 277.0730104529054 1.609e-05 deg
tp 2459486.333505616511
(2021-Sep-28.83350562)
5.64e-05 TDB
period 1240.851290803298
3.40
6.5533e-06
1.794e-08
d
yr
n .2901234037214438 1.5322e-09 deg/d
Q 2.648134902605081 9.3237e-09 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      15562 days (42.61 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56297  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:18  

Additional Information
 Earth MOID = .864837 au 
 Jupiter MOID = 2.77128 au 
 T_jup = 3.600 
[ show covariance matrix ]

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 16.0   n/a MPO452602  

30701 (2381 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2381 T-3 = 2000 HP69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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