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4006 Sandler (1972 YR)
Classification: Main-belt Asteroid          SPK-ID: 2004006
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836878127373927 2.79e-08  
a 2.514893412887073 8.2278e-09 au
q 2.05293814260617 7.2388e-08 au
i 2.39155991067692 4.5713e-06 deg
node 293.7018382179804 6.8273e-05 deg
peri 124.2410952914014 6.9778e-05 deg
M 350.8660887859472 1.4605e-05 deg
tp 2459037.460010581306
(2020-Jul-06.96001058)
5.913e-05 TDB
period 1456.725765934628
3.99
7.1488e-06
1.957e-08
d
yr
n .2471295616639455 1.2128e-09 deg/d
Q 2.976848683167976 9.7392e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2690  
   data-arc span      20081 days (54.98 yr)  
   first obs. used      1965-01-09  
   last obs. used      2020-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:01:48  

Additional Information
 Earth MOID = 1.06633 au 
 Jupiter MOID = 2.36618 au 
 T_jup = 3.435 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456600.5 (2013-Nov-04.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839092715939153 2.7404e-08  
q 2.052172156117252 7.0929e-08 au
tp 2456119.020322475757
(2012-Jul-10.52032248)
5.7681e-05 TDB
node 293.9883970921728 6.8465e-05 deg
peri 123.1352388121923 6.996e-05 deg
i 2.386731456222319 4.5673e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2690  
   data-arc span      20081 days (54.98 yr)  
   first obs. used      1965-01-09  
   last obs. used      2020-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:01:48  

Additional Information
 Jupiter MOID = 2.36618 au 
 T_jup = 3.435 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.50972849155121E-16 -1.935586172668776E-15 6.781575357652626E-13 -8.107758136408685E-17 1.678189462690723E-13 4.918200084484446E-16
q -1.935586172668776E-15 5.030934096550872E-15 -1.706396385932424E-12 6.396350654235096E-16 -4.200577865736069E-13 -1.156501280080323E-15
tp 6.781575357652626E-13 -1.706396385932424E-12 3.327044087982479E-9 -1.645229876012239E-11 8.364078721030331E-10 3.133337250757468E-13
node -8.107758136408685E-17 6.396350654235096E-16 -1.645229876012239E-11 4.687409817376284E-9 -4.686883258221621E-9 8.20071712840266E-11
peri 1.678189462690723E-13 -4.200577865736069E-13 8.364078721030331E-10 -4.686883258221621E-9 4.894459263829358E-9 -8.186815909152902E-11
i 4.918200084484446E-16 -1.156501280080323E-15 3.133337250757468E-13 8.20071712840266E-11 -8.186815909152902E-11 2.086045201738778E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO452220  
diameter diameter 15.894 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.40 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Vonk, M.T.; Kopchinski, D.J.; Pittman, A.R.; Tauble, S. (2006) Minor Planet Bull. 33, 1.]
geometric albedo albedo 0.071   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4006 Sandler (1972 YR)          Discovered 1972-Dec-29 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1972 YR = 1965 AW = 1969 AS = 1971 OO = 1973 AA1 = 1975 NC1 = 1979 OA14 = 1979 QH10 = 1981 AN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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