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JPL Small-Body Database Browser
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2101 Adonis (1936 CA)
Classification: Apollo [NEO, PHA]          SPK-ID: 2002101
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7644221342598743 8.0218e-08  
a 1.87423011151435 1.9386e-09 au
q .4415271295764284 1.5002e-07 au
i 1.323663545970162 1.2541e-05 deg
node 349.5702143070202 0.00043394 deg
peri 43.55045712034659 0.00043436 deg
M 182.5297354713971 1.2341e-05 deg
tp 2459062.514801548113
(2020-Aug-01.01480155)
3.2418e-05 TDB
period 937.2011080228834
2.57
1.4541e-06
3.981e-09
d
yr
n .3841224651979497 5.9598e-10 deg/d
Q 3.306933093452271 3.4206e-09 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   # delay obs. used      0  
   # Doppler obs. used      5  
   data-arc span      30009 days (82.16 yr)  
   first obs. used      1936-02-12  
   last obs. used      2018-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63761  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-23 05:47:16  

Additional Information
 Earth MOID = .0116224 au 
 Jupiter MOID = 2.14084 au 
 T_jup = 3.550 
[ 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 18.8   n/a MPO256878  
diameter diameter 0.6 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)

2101 Adonis (1936 CA)          Discovered 1936-Feb-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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