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3804 Drunina (1969 TB2)
Classification: Main-belt Asteroid          SPK-ID: 2003804
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06127268911977066 1.1844e-08  
a 2.898856211325069 1.2832e-08 au
q 2.721235495885632 3.9209e-08 au
i 2.155796771809122 7.3888e-07 deg
node 21.71683493895671 3.1636e-05 deg
peri 284.4335679006993 3.9718e-05 deg
M 209.0320940971295 2.4805e-05 deg
tp 2459956.497863473217
(2023-Jan-11.99786347)
0.00012588 TDB
period 1802.762177978804
4.94
1.197e-05
3.277e-08
d
yr
n .1996935615787213 1.3259e-09 deg/d
Q 3.076476926764506 1.3618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2705  
   data-arc span      18795 days (51.46 yr)  
   first obs. used      1969-10-08  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45786  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:12:56  

Additional Information
 Earth MOID = 1.70528 au 
 Jupiter MOID = 2.07049 au 
 T_jup = 3.284 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456782.5 (2014-May-05.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06345651840387119 1.1909e-08  
q 2.712759875567539 3.9541e-08 au
tp 2456338.251788935321
(2013-Feb-14.75178894)
0.00011489 TDB
node 21.77500236156351 3.166e-05 deg
peri 281.8333520545788 3.9137e-05 deg
i 2.157687330414204 7.3821e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2705  
   data-arc span      18795 days (51.46 yr)  
   first obs. used      1969-10-08  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45786  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:12:56  

Additional Information
 Jupiter MOID = 2.07049 au 
 T_jup = 3.284 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.41829148208312E-16 -4.505004945910766E-16 5.427602738856301E-14 7.630077323666517E-14 -7.078829559134911E-14 -6.765476831077365E-16
q -4.505004945910766E-16 1.563525441202606E-15 8.116680677469006E-14 -2.326123461172457E-13 2.722263922050041E-13 2.1915353427964E-15
tp 5.427602738856301E-14 8.116680677469006E-14 1.319900753417981E-8 -2.619545653153482E-10 2.679469355189735E-9 6.981778009251637E-13
node 7.630077323666517E-14 -2.326123461172457E-13 -2.619545653153482E-10 1.002368043482066E-9 -1.04482758641583E-9 -1.414329406412324E-12
peri -7.078829559134911E-14 2.722263922050041E-13 2.679469355189735E-9 -1.04482758641583E-9 1.531706013920024E-9 1.454370414164513E-12
i -6.765476831077365E-16 2.1915353427964E-15 6.981778009251637E-13 -1.414329406412324E-12 1.454370414164513E-12 5.449543969840604E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.65   n/a MPCxxxxx  
diameter diameter 8.789 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.243 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.229   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3804 Drunina (1969 TB2)          Discovered 1969-Oct-08 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1969 TB2 = 1979 WW6 = 1982 GH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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