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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1507626943771732 1.7852e-08  
a 3.319574134157668 1.6897e-08 au
q 2.819106193507286 6.5417e-08 au
i 5.378518862339321 1.657e-06 deg
node 161.526874633554 6.6035e-06 deg
peri 162.327113087884 9.8841e-06 deg
M 203.7851141276317 1.0032e-05 deg
tp 2460355.109878034635
(2024-Feb-14.60987803)
6.4813e-05 TDB
period 2209.133618510748
6.05
1.6868e-05
4.618e-08
d
yr
n .1629598123823258 1.2443e-09 deg/d
Q 3.820042074808049 1.9445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2791  
   data-arc span      24565 days (67.26 yr)  
   first obs. used      1954-03-07  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:41:32  

Additional Information
 Earth MOID = 1.80696 au 
 Jupiter MOID = 1.53538 au 
 T_jup = 3.140 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457006.5 (2014-Dec-15.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466212994176368 1.7675e-08  
q 2.844325322723239 6.452e-08 au
tp 2455915.156744405155
(2011-Dec-19.65674441)
5.77e-05 TDB
node 161.5945967553649 6.6341e-06 deg
peri 160.2446157368422 1.001e-05 deg
i 5.354773954776997 1.648e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2791  
   data-arc span      24565 days (67.26 yr)  
   first obs. used      1954-03-07  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:41:32  

Additional Information
 Jupiter MOID = 1.53538 au 
 T_jup = 3.140 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.123986148404235E-16 -1.113454375716878E-15 -1.189963304191151E-13 7.36776785642685E-15 -1.546253317952757E-14 1.64668691241275E-16
q -1.113454375716878E-15 4.162844071735609E-15 3.753333725793521E-13 -2.615701360773202E-14 6.584038052383634E-14 -1.290886411588575E-15
tp -1.189963304191151E-13 3.753333725793521E-13 3.329233994816864E-9 5.599338649383043E-12 4.295155228352536E-10 -1.545819934056275E-12
node 7.36776785642685E-15 -2.615701360773202E-14 5.599338649383043E-12 4.401080138674774E-11 -4.247612653005547E-11 1.050814432429832E-11
peri -1.546253317952757E-14 6.584038052383634E-14 4.295155228352536E-10 -4.247612653005547E-11 1.001949420112589E-10 -1.054399844997847E-11
i 1.64668691241275E-16 -1.290886411588575E-15 -1.545819934056275E-12 1.050814432429832E-11 -1.054399844997847E-11 2.715851663454075E-12

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 11.56   n/a E2021B10  
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. 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:
[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

[ show close-approach data ]
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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