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227111 (2005 NH52)
Classification: Main-belt Asteroid          SPK-ID: 2227111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2452070875391573 3.242e-08  
a 2.293751222707654 1.0041e-08 au
q 1.73130716584813 7.2424e-08 au
i 4.442258819384399 6.5645e-06 deg
node 318.1595992429 6.4947e-05 deg
peri 307.6909363457246 6.8003e-05 deg
M 181.5337618082048 1.7874e-05 deg
tp 2459829.530154516849
(2022-Sep-07.03015452)
6.4423e-05 TDB
period 1268.87224116139
3.47
8.3319e-06
2.281e-08
d
yr
n .2837165069278326 1.863e-09 deg/d
Q 2.856195279567179 1.2503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      5808 days (15.90 yr)  
   first obs. used      2003-12-21  
   last obs. used      2019-11-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:28  

Additional Information
 Earth MOID = .718128 au 
 Jupiter MOID = 2.25719 au 
 T_jup = 3.552 
[ 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 17.2   n/a MPO437075  

227111 (2005 NH52)          Discovered 2005-Jul-10 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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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
2004-Apr-23 15:36 < 00:01 Hebe 0.043486617687454 0.0434854864435601 0.0434877489324611 9.43328337114426 9.43328335598985 2453119.149809870 0.282417653476346 119.93195274705 56.1004271259794 -86.8376457210259 115809.137779526 T 11 CATAB v2.0f-lin.ifort 2021-Apr-14 00:38:29 2021-Apr-14 00:38

Alternate Designations
 2005 NH52 = 2004 BY81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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