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35035 (1981 ER29)
Classification: Main-belt Asteroid          SPK-ID: 2035035
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364041223680194 3.6107e-08  
a 2.616026882237605 1.1567e-08 au
q 2.259190031274838 9.4498e-08 au
i 13.2802285593623 5.2771e-06 deg
node 192.6250917485094 1.5298e-05 deg
peri 308.9806002979914 2.4373e-05 deg
M 130.7621794388027 1.8172e-05 deg
tp 2458439.140107625558
(2018-Nov-16.64010763)
7.7675e-05 TDB
period 1545.474097496043
4.23
1.025e-05
2.806e-08
d
yr
n .232938229494281 1.545e-09 deg/d
Q 2.972863733200372 1.3145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      14407 days (39.44 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:42:44  

Additional Information
 Earth MOID = 1.29386 au 
 Jupiter MOID = 2.09559 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457150.5 (2015-May-08.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371825692246083 3.5851e-08  
q 2.254822089363032 9.3822e-08 au
tp 2456893.467019682564
(2014-Aug-23.96701968)
7.7202e-05 TDB
node 192.7079368262326 1.5292e-05 deg
peri 308.3139856427188 2.4348e-05 deg
i 13.2873311550735 5.2799e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      14407 days (39.44 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:42:44  

Additional Information
 Jupiter MOID = 2.09559 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.285290471738047E-15 -3.344622177229081E-15 1.095409478393451E-12 -3.759921862151352E-15 2.564823799749473E-13 1.260533874077269E-15
q -3.344622177229081E-15 8.8024989049542E-15 -2.899884448176048E-12 9.727035489836531E-15 -6.753413381099771E-13 -2.712000883452244E-15
tp 1.095409478393451E-12 -2.899884448176048E-12 5.960088901020743E-9 -1.950165620954271E-11 1.471744908045451E-9 1.061618056699523E-12
node -3.759921862151352E-15 9.727035489836531E-15 -1.950165620954271E-11 2.338419932917353E-10 -2.316633430611508E-10 9.162867691421276E-12
peri 2.564823799749473E-13 -6.753413381099771E-13 1.471744908045451E-9 -2.316633430611508E-10 5.928083261915294E-10 -8.500425910705234E-12
i 1.260533874077269E-15 -2.712000883452244E-15 1.061618056699523E-12 9.162867691421276E-12 -8.500425910705234E-12 2.787777564460351E-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 14.4   n/a MPO436009  
diameter diameter 4.306 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.005 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 0.166   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35035 (1981 ER29)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 ER29 = 1998 FX122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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