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JPL Small-Body Database Browser
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52229 (1978 NN)
Classification: Main-belt Asteroid          SPK-ID: 2052229
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588381525598306 6.6534e-08  
a 2.756317736340916 2.5563e-08 au
q 2.318509319232631 1.8998e-07 au
i 35.08204212569009 9.2436e-06 deg
node 293.6223008868416 1.041e-05 deg
peri 318.6860267930834 3.4654e-05 deg
M 79.59965794312193 3.7888e-05 deg
tp 2458630.926309169512
(2019-May-27.42630917)
0.00017482 TDB
period 1671.445985283557
4.58
2.3252e-05
6.366e-08
d
yr
n .2153823714135321 2.9963e-09 deg/d
Q 3.194126153449201 2.9623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      15115 days (41.38 yr)  
   first obs. used      1978-07-08  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40877  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:24:10  

Additional Information
 Earth MOID = 1.35522 au 
 Jupiter MOID = 2.132 au 
 T_jup = 3.064 
[ 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 13.6   n/a MPO436149  
diameter diameter 8.744 km 0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.092   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52229 (1978 NN)          Discovered 1978-Jul-10 by Helin, E. F., Shoemaker, E. M. at Palomar
Reference: 20030216/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
2193-Dec-30 19:07 00:04 Iris 0.0191273566292906 0.0190824069910101 0.0191723094630516 11.9411736075586 11.9411735823893 2522401.296358279 4.25972206650609 2275.07981338502 72.5312929497258 9.87615235493596 6877.29459045637 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 10:24:24 2020-Feb-23 10:24

Alternate Designations
 1978 NN = 2001 LQ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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