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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110853781848019 3.8232e-08  
a 3.196330947858494 1.5954e-08 au
q 2.521632220925997 1.2659e-07 au
i 2.031426977995458 3.5158e-06 deg
node 125.5207444602032 0.00012536 deg
peri 224.6160014772055 0.00012564 deg
M 320.7913615702545 1.0653e-05 deg
tp 2459623.829238374070
(2022-Feb-13.32923837)
6.2582e-05 TDB
period 2087.257530283905
5.71
1.5627e-05
4.278e-08
d
yr
n .1724751233505113 1.2913e-09 deg/d
Q 3.871029674790991 1.9322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1911  
   data-arc span      14598 days (39.97 yr)  
   first obs. used      1981-07-02  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:48:59  

Additional Information
 Earth MOID = 1.51532 au 
 Jupiter MOID = 1.56337 au 
 T_jup = 3.159 
[ 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 13.25   n/a E2021B10  
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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