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2437 Amnestia (1942 RZ)
Classification: Main-belt Asteroid          SPK-ID: 2002437
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475672969287235 3.1941e-08  
a 2.188583265186505 5.6686e-09 au
q 1.865619948639493 7.0061e-08 au
i 2.944947582082315 3.739e-06 deg
node 218.9373950726372 6.4323e-05 deg
peri 151.3928116428917 6.591e-05 deg
M 352.4578112087714 1.5981e-05 deg
tp 2459025.276384745861
(2020-Jun-24.77638475)
5.2538e-05 TDB
period 1182.614060109837
3.24
4.5946e-06
1.258e-08
d
yr
n .3044103838631552 1.1827e-09 deg/d
Q 2.511546581733517 6.505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2513  
   data-arc span      33287 days (91.13 yr)  
   first obs. used      1929-09-27  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:06:20  

Additional Information
 Earth MOID = .865961 au 
 Jupiter MOID = 2.9564 au 
 T_jup = 3.659 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0   n/a MPO384772  
diameter diameter 6.742 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 85. h n/a LCDB (Rev. 2020-October); 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:
[Ruthroff, J.C. (2011) Minor Planet Bull. 38, 86-88.]
geometric albedo albedo 0.269   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2437 Amnestia (1942 RZ)          Discovered 1942-Sep-14 by Vaisala, M. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1942 RZ = 1929 SC = 1939 XE = 1955 SF1 = 1955 UO = 1965 YE = 1971 OE1 = 1977 KB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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