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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107365727296984 4.0017e-08  
a 3.193404563868262 1.7182e-08 au
q 2.520437430739287 1.3053e-07 au
i 2.031244796295213 3.6538e-06 deg
node 125.525044421426 0.00013246 deg
peri 224.8307312852185 0.00013275 deg
M 252.1907849680894 1.1503e-05 deg
tp 2459624.712875421550
(2022-Feb-14.21287542)
6.9332e-05 TDB
period 2084.39171999577
5.71
1.6822e-05
4.606e-08
d
yr
n .1727122577519789 1.3939e-09 deg/d
Q 3.866371696997237 2.0803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1781  
   data-arc span      14230 days (38.96 yr)  
   first obs. used      1981-07-02  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:20:12  

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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