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3727 Maxhell (1981 PQ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003727
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1505875033815209 3.8699e-08  
a 3.319934778350146 1.8821e-08 au
q 2.819994088688914 1.3034e-07 au
i 5.377073406360857 4.6436e-06 deg
node 161.5345208341192 4.1447e-05 deg
peri 162.2074355571707 4.4299e-05 deg
M 139.4117264315561 1.6517e-05 deg
tp 2458144.862994154237
(2018-Jan-26.36299415)
0.00010085 TDB
period 2209.493634351492
6.05
1.8789e-05
5.144e-08
d
yr
n .1629332596405798 1.3855e-09 deg/d
Q 3.819875468011378 2.1655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2320  
   data-arc span      24344 days (66.65 yr)  
   first obs. used      1954-03-07  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47207  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:57:47  

Additional Information
 Earth MOID = 1.80854 au 
 Jupiter MOID = 1.5356 au 
 T_jup = 3.140 
[ 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 11.5   n/a MPO458867  
diameter diameter 27.691 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 51.469 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.064   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3727 Maxhell (1981 PQ)          Discovered 1981-Aug-07 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 PQ = 1969 RN = 1975 RS1 = 1976 YY3 = 1981 RZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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