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1221 Amor (1932 EA1)
Classification: Amor [NEO]          SPK-ID: 2001221
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 105 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4357329630719231 3.451e-08  
a 1.918758590510807 9.7551e-10 au
q 1.082692224447826 6.66e-08 au
i 11.8829206674003 4.981e-06 deg
node 171.3185699966586 2.2654e-05 deg
peri 26.6551859253077 2.4471e-05 deg
M 185.3656918705658 8.1293e-06 deg
tp 2459867.429612184538
(2022-Oct-14.92961218)
2.2027e-05 TDB
period 970.7981335533411
2.66
7.4034e-07
2.027e-09
d
yr
n .3708288958924122 2.828e-10 deg/d
Q 2.754824956573788 1.4006e-09 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      32328 days (88.51 yr)  
   first obs. used      1932-03-12  
   last obs. used      2020-09-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45742  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:09:47  

Additional Information
 Earth MOID = .106955 au 
 Jupiter MOID = 2.21174 au 
 T_jup = 3.782 
[ 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 17.39   n/a E2021B10  
diameter diameter 1.0 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)

1221 Amor (1932 EA1)          Discovered 1932-Mar-12 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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