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216416 (2008 SD92)
Classification: Main-belt Asteroid          SPK-ID: 2216416
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2111911736269006 6.5491e-08  
a 2.636772837233588 2.3203e-08 au
q 2.079909687150694 1.8447e-07 au
i 1.445713374818553 6.1338e-06 deg
node 335.8220249626615 0.00029294 deg
peri 345.0028492820166 0.00029355 deg
M 27.95641546777288 2.2145e-05 deg
tp 2459275.053085272319
(2021-Mar-01.55308527)
9.5374e-05 TDB
period 1563.894675709232
4.28
2.0643e-05
5.652e-08
d
yr
n .2301945300995022 3.0385e-09 deg/d
Q 3.193635987316482 2.8103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      9054 days (24.79 yr)  
   first obs. used      1995-09-01  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:43  

Additional Information
 Earth MOID = 1.06652 au 
 Jupiter MOID = 2.12802 au 
 T_jup = 3.365 
[ 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 16.77   n/a E2021B55  

216416 (2008 SD92)          Discovered 2008-Sep-21 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ 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
1912-Jan-16 05:15 00:07 Psych 0.0363328858480356 0.0363095717343088 0.0363562012467841 2.83051381919451 2.83051370154558 2419417.718564139 7.25713218116834 1209.13853782531 100.773647541374 16.4053232884752 15802.3625490878 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:54:44 2021-Apr-13 23:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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