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11845 (1987 RZ)
Classification: Main-belt Asteroid          SPK-ID: 2011845
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107365751758798 4.2471e-08  
a 3.193404564487278 1.7602e-08 au
q 2.520437423416207 1.3726e-07 au
i 2.031241428767504 4.0998e-06 deg
node 125.5250143285087 0.00013349 deg
peri 224.8307611601187 0.0001338 deg
M 252.1907848595512 1.1509e-05 deg
tp 2459624.712876231482
(2022-Feb-14.21287623)
6.9405e-05 TDB
period 2084.391720601834
5.71
1.7234e-05
4.718e-08
d
yr
n .1727122577017605 1.428e-09 deg/d
Q 3.86637170555835 2.1312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1661  
   data-arc span      14180 days (38.82 yr)  
   first obs. used      1981-07-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53516  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:37:32  

Additional Information
 Earth MOID = 1.51502 au 
 Jupiter MOID = 1.56756 au 
 T_jup = 3.160 
[ show covariance matrix ]

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 13.2   n/a MPO395115  
diameter diameter 10.046 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11845 (1987 RZ)          Discovered 1987-Sep-12 by Debehogne, H. at La Silla
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 RZ = 1981 NJ1 = 1982 UK10 = 1991 FF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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