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1915 Quetzalcoatl (1953 EA)
Classification: Amor [NEO]          SPK-ID: 2001915
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5706951028625401 2.2529e-07  
a 2.54418769667879 8.2463e-08 au
q 1.092232237421079 5.9496e-07 au
i 20.40452654447031 7.1547e-05 deg
node 162.9355158575097 6.3677e-05 deg
peri 347.8165016325317 9.2705e-05 deg
M 351.8334865781504 0.00016647 deg
tp 2459430.124538199083
(2021-Aug-03.62453820)
0.00068707 TDB
period 1482.252354999311
4.06
7.2065e-05
1.973e-07
d
yr
n .242873623230079 1.1808e-08 deg/d
Q 3.9961431559365 1.2952e-07 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      18842 days (51.59 yr)  
   first obs. used      1953-03-09  
   last obs. used      2004-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .69647  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:06:38  

Additional Information
 Earth MOID = .108807 au 
 Jupiter MOID = 1.05971 au 
 T_jup = 3.122 
[ 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 18.97   n/a PDS3 (MPC 17263)  
magnitude slope G 0.10   n/a PDS3 (MPC 17263) Fit
diameter diameter 0.5 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 4.9 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:
[Binzel, R.P.; Tholen, D.J. (1983) Icarus 55, 495-497.]
geometric albedo albedo 0.21   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.784   0.065 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=9.12, mean=25.63, max.=42.13) deg.
U-B UB 0.430   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=9.12 deg.
Tholen spectral type spec_T SMU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

1915 Quetzalcoatl (1953 EA)          Discovered 1953-Mar-09 by Wilson, A. G. at Palomar
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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