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43992 (1997 NP)
Classification: Main-belt Asteroid          SPK-ID: 2043992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054048617463941 3.7863e-08  
a 2.908331467159239 1.6598e-08 au
q 2.601779190950632 1.0976e-07 au
i 4.739388023518636 4.8763e-06 deg
node 295.2503832444251 5.9031e-05 deg
peri 116.9371846167599 6.4539e-05 deg
M 169.6862449178738 2.7038e-05 deg
tp 2458346.597237646975
(2018-Aug-16.09723765)
0.00013376 TDB
period 1811.608210175608
4.96
1.5508e-05
4.246e-08
d
yr
n .1987184635054748 1.7011e-09 deg/d
Q 3.214883743367846 1.8347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1257  
   data-arc span      8382 days (22.95 yr)  
   first obs. used      1997-07-01  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:24:54  

Additional Information
 Earth MOID = 1.61639 au 
 Jupiter MOID = 2.11109 au 
 T_jup = 3.271 
[ 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 13.77   n/a MPCxxxxx  
diameter diameter 4.906 km 1.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.292   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43992 (1997 NP)          Discovered 1997-Jul-01 by Spacewatch at Kitt Peak
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 NP = 1998 XD29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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