Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
3362 Khufu (1984 QA)
Classification: Aten [NEO, PHA]          SPK-ID: 2003362
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4684424537729014 5.7233e-07  
a .989557101460663 1.2539e-08 au
q .5260065447040301 5.7293e-07 au
i 9.916976142633629 1.1902e-05 deg
node 152.431507723395 5.8407e-05 deg
peri 55.0543956131713 4.7843e-05 deg
M 38.08270300471016 0.00018291 deg
tp 2459162.464863283427
(2020-Nov-08.96486328)
0.00018196 TDB
period 359.5503506217165
0.98
6.8342e-06
1.871e-08
d
yr
n 1.001250588067863 1.9031e-08 deg/d
Q 1.453107658217296 1.8413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      7394 days (20.24 yr)  
   first obs. used      1984-08-30  
   last obs. used      2004-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .6347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:01:37  

Additional Information
 Earth MOID = .0130148 au 
 Jupiter MOID = 3.51952 au 
 T_jup = 6.017 
[ hide covariance matrix ]
Orbital Elements at Epoch 2450632.5 (1997-Jul-03.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .468543789793597 5.7124e-07  
q .5258696232911585 5.741e-07 au
tp 2450533.892521953355
(1997-Mar-26.39252195)
2.8045e-05 TDB
node 152.6478158541972 5.8022e-05 deg
peri 54.85818780295242 4.7819e-05 deg
i 9.913097765160121 1.1992e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      7394 days (20.24 yr)  
   first obs. used      1984-08-30  
   last obs. used      2004-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .6347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:01:37  

Additional Information
 Jupiter MOID = 3.51952 au 
 T_jup = 6.017 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.263124373106122E-13 -3.279445242154815E-13 7.686753041149396E-12 1.654913300712414E-11 4.036064486657074E-14 5.25423693407217E-12
q -3.279445242154815E-13 3.295862072197205E-13 -7.740111367970009E-12 -1.664326472340723E-11 -3.952471013136824E-14 -5.281891836687161E-12
tp 7.686753041149396E-12 -7.740111367970009E-12 7.865330386708404E-10 7.402959149988855E-10 2.309603335865572E-11 1.91183560487914E-10
node 1.654913300712414E-11 -1.664326472340723E-11 7.402959149988855E-10 3.366590179662469E-9 -2.275812953004035E-9 3.850960344763408E-10
peri 4.036064486657074E-14 -3.952471013136824E-14 2.309603335865572E-11 -2.275812953004035E-9 2.286648669727746E-9 -7.478947123203804E-11
i 5.25423693407217E-12 -5.281891836687161E-12 1.91183560487914E-10 3.850960344763408E-10 -7.478947123203804E-11 1.438027151301847E-10

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 18.3   n/a PDS3 (MPC 28110)  
diameter diameter 0.7 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
geometric albedo albedo 0.21   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  

3362 Khufu (1984 QA)          Discovered 1984-Aug-30 by Dunbar, R. S. and Barucci, M. 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-22 01:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin