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30977 (1995 JJ1)
Classification: Main-belt Asteroid          SPK-ID: 2030977
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487852752474736 3.1325e-08  
a 2.437355329502191 8.3203e-09 au
q 2.074712745926311 7.7216e-08 au
i 3.377405384131686 3.0889e-06 deg
node 117.6693965792739 6.084e-05 deg
peri 114.4022245300091 6.1745e-05 deg
M 258.4644370388335 1.2142e-05 deg
tp 2459592.505696628865
(2022-Jan-13.00569663)
4.7761e-05 TDB
period 1389.878055242234
3.81
7.1169e-06
1.949e-08
d
yr
n .2590155291985365 1.3263e-09 deg/d
Q 2.799997913078072 9.5583e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1842  
   data-arc span      9453 days (25.88 yr)  
   first obs. used      1995-04-27  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:32:57  

Additional Information
 Earth MOID = 1.06526 au 
 Jupiter MOID = 2.19362 au 
 T_jup = 3.486 
[ 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 14.47   n/a MPCxxxxx  
diameter diameter 3.373 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.356   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30977 (1995 JJ1)          Discovered 1995-May-05 by Elst, E. W. at Caussols
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 JJ1 = 1995 HT = 1999 LH26 = 2000 SV120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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