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399774 (2005 NB7)
Classification: Apollo [NEO, PHA]          SPK-ID: 2399774
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 102 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5173685959960401 1.6048e-08  
a 2.044137515722763 1.4616e-08 au
q .9865649591904437 3.3594e-08 au
i 12.69795188313991 5.2429e-06 deg
node 199.1659898627356 1.0906e-05 deg
peri 348.1875139540256 1.3649e-05 deg
M 125.2070119761672 1.7936e-05 deg
tp 2458829.230100275641
(2019-Dec-11.73010028)
4.9235e-05 TDB
period 1067.489446407445
2.92
1.1449e-05
3.135e-08
d
yr
n .3372398680020234 3.6171e-09 deg/d
Q 3.101710072255083 2.2179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      920  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      6843 days (18.74 yr)  
   first obs. used      2001-12-18  
   last obs. used      2020-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .28608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:56:26  

Additional Information
 Earth MOID = .00845635 au 
 Jupiter MOID = 1.86926 au 
 T_jup = 3.592 
[ 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 18.56   n/a E2021B25  
rotation period rot_per 3.4882 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Kusnirak, P.; Pravec, P.; Galad, A.; Kornos, L.; et al. (2008) CBET 1383.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Vander Haagen, G. (2008) Minor Planet Bull. 35, 181-182.]

399774 (2005 NB7)          Discovered 2005-Jul-05 by CSS at Catalina
Reference: Last Updated: 2014-07-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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