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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .199765832587764 1.0763e-08  
a 2.271843844962992 7.1323e-09 au
q 1.818007067764572 2.492e-08 au
i 4.865794322725118 3.6366e-07 deg
node 292.6719073847638 8.8081e-06 deg
peri 35.65621957100873 9.972e-06 deg
M 258.3129919300111 5.0985e-06 deg
tp 2459749.788182651382
(2022-Jun-19.28818265)
1.8853e-05 TDB
period 1250.737416396003
3.42
5.8899e-06
1.613e-08
d
yr
n .2878301994333384 1.3554e-09 deg/d
Q 2.725680622161411 8.5571e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2487  
   data-arc span      19675 days (53.87 yr)  
   first obs. used      1967-08-14  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:59:26  

Additional Information
 Earth MOID = .80834 au 
 Jupiter MOID = 2.61843 au 
 T_jup = 3.581 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.60   n/a MPCxxxxx  
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. 2020-October); 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.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
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

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