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52299 (1991 NJ1)
Classification: Main-belt Asteroid          SPK-ID: 2052299
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190100779956304 3.6569e-08  
a 2.239427158563634 6.9311e-09 au
q 1.74897004190108 7.9949e-08 au
i 6.159689626481317 3.8804e-06 deg
node 120.015826891205 3.6526e-05 deg
peri 204.3811293378534 3.7555e-05 deg
M 269.3596796158807 1.0576e-05 deg
tp 2459508.692999215555
(2021-Oct-21.19299922)
3.6813e-05 TDB
period 1224.063190061701
3.35
5.6828e-06
1.556e-08
d
yr
n .2941024637640263 1.3654e-09 deg/d
Q 2.729884275226189 8.4491e-09 au
  Orbit Determination Parameters
   # obs. used (total)      873  
   data-arc span      10483 days (28.70 yr)  
   first obs. used      1991-07-12  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:18:21  

Additional Information
 Earth MOID = .736752 au 
 Jupiter MOID = 2.6013 au 
 T_jup = 3.596 
[ 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 15.95   n/a E2021B10  
rotation period rot_per 6.097 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

52299 (1991 NJ1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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