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4145 Maximova (1981 SJ7)
Classification: Main-belt Asteroid          SPK-ID: 2004145
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .199531250971241 4.0412e-08  
a 2.272389288003041 8.4518e-09 au
q 1.818976610674147 9.4036e-08 au
i 4.866058782534536 3.9008e-06 deg
node 292.6768257537693 4.3516e-05 deg
peri 35.58795095426215 4.4215e-05 deg
M 144.4359637307425 8.2926e-06 deg
tp 2458498.509648721988
(2019-Jan-15.00964872)
2.8058e-05 TDB
period 1251.187874489321
3.43
6.9804e-06
1.911e-08
d
yr
n .2877265735546997 1.6052e-09 deg/d
Q 2.725801965331936 1.0138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2048  
   data-arc span      19437 days (53.22 yr)  
   first obs. used      1967-08-14  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:54:04  

Additional Information
 Earth MOID = .810008 au 
 Jupiter MOID = 2.61857 au 
 T_jup = 3.580 
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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 13.5   n/a MPO350834  
diameter diameter 5.266 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.872 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm]
[Benishek, V. (2016) Minor Planet Bull. 43, 339-342.]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
geometric albedo albedo 0.305   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4145 Maximova (1981 SJ7)          Discovered 1981-Sep-29 by Zhuravleva, L. V. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 SJ7 = 1967 PB = 1974 RC1 = 1981 WB5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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