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39865 (1998 DB22)
Classification: Main-belt Asteroid          SPK-ID: 2039865
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02926060700874418 3.758e-08  
a 2.881410627495699 2.2323e-08 au
q 2.797098803493728 1.1048e-07 au
i 3.158705625694237 5.1253e-06 deg
node 122.8629974358796 0.00012696 deg
peri 331.8000412941429 0.00018971 deg
M 256.2664929308673 0.00014292 deg
tp 2459515.281246953101
(2021-Oct-27.78124695)
0.00071132 TDB
period 1786.512903488456
4.89
2.0761e-05
5.684e-08
d
yr
n .2015098795519705 2.3417e-09 deg/d
Q 2.965722451497669 2.2976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      456  
   data-arc span      9720 days (26.61 yr)  
   first obs. used      1991-11-04  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:08:43  

Additional Information
 Earth MOID = 1.81439 au 
 Jupiter MOID = 2.07312 au 
 T_jup = 3.291 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456254.5 (2012-Nov-23.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0286750667667012 3.7939e-08  
q 2.79904759845413 1.1309e-07 au
tp 2455901.776578206168
(2011-Dec-06.27657821)
0.00071304 TDB
node 122.9868398670716 0.00012735 deg
peri 324.1739250627143 0.00019239 deg
i 3.154715474479999 5.1177e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      456  
   data-arc span      9720 days (26.61 yr)  
   first obs. used      1991-11-04  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:08:43  

Additional Information
 Jupiter MOID = 2.07312 au 
 T_jup = 3.291 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.439336449639073E-15 -4.209819371003188E-15 -4.668866965366652E-12 -7.678208686403705E-15 -9.170724678030085E-13 -1.676545327509345E-16
q -4.209819371003188E-15 1.278980305917665E-14 1.876794113039594E-11 2.352715922678858E-14 3.727340669080192E-12 1.02206461179561E-15
tp -4.668866965366652E-12 1.876794113039594E-11 5.084237194702519E-7 -1.42376591383753E-10 1.029151549958538E-7 1.498331994528875E-12
node -7.678208686403705E-15 2.352715922678858E-14 -1.42376591383753E-10 1.621837741482126E-8 -1.622203697922293E-8 2.980546344298356E-10
peri -9.170724678030085E-13 3.727340669080192E-12 1.029151549958538E-7 -1.622203697922293E-8 3.701471141427547E-8 -2.972938348612162E-10
i -1.676545327509345E-16 1.02206461179561E-15 1.498331994528875E-12 2.980546344298356E-10 -2.972938348612162E-10 2.619064699947046E-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 15.3   n/a MPO439363  

39865 (1998 DB22)          Discovered 1998-Feb-22 by Spacewatch at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DB22 = 2001 XV78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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