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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2104742535796039 4.7169e-08  
a 3.193582562889178 1.8732e-08 au
q 2.52141565672024 1.5e-07 au
i 2.031196441725331 4.6522e-06 deg
node 125.5232759409965 0.00013401 deg
peri 224.8874374889123 0.00013433 deg
M 183.0130512273023 1.1244e-05 deg
tp 2459625.336042614195
(2022-Feb-14.83604261)
6.9656e-05 TDB
period 2084.565997094717
5.71
1.834e-05
5.021e-08
d
yr
n .172697818395645 1.5194e-09 deg/d
Q 3.865749469058117 2.2674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      13797 days (37.77 yr)  
   first obs. used      1981-07-02  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:14:26  

Additional Information
 Earth MOID = 1.5151 au 
 Jupiter MOID = 1.56469 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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