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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 ]

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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 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1934-Mar-30 00:11 00:12 Europ 0.011413350475255 0.0114017173127997 0.0114250001207789 1.581439659676 1.58143907082419 2427526.507627186 12.1307915813241 895.090114071144 45.3002188675165 49.849492529427 28711.7902864776 T 37 CATAB v2.0e-lin.ifort 2019-Jul-13 02:08:46 2019-Jul-13 02:08

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