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 ]  
37621 (1993 QT4)
Classification: Main-belt Asteroid          SPK-ID: 2037621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668027786132192 4.5799e-08  
a 2.281994980017432 9.9318e-09 au
q 1.901351876569107 1.0779e-07 au
i 7.45806041059078 5.5256e-06 deg
node 350.6430626467263 3.3145e-05 deg
peri 27.45054834530692 3.6456e-05 deg
M 249.0644721315859 1.6125e-05 deg
tp 2459388.506148276819
(2021-Jun-23.00614828)
5.7701e-05 TDB
period 1259.129659033476
3.45
8.22e-06
2.251e-08
d
yr
n .2859117783599353 1.8665e-09 deg/d
Q 2.662638083465757 1.1588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      9387 days (25.70 yr)  
   first obs. used      1993-08-15  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:57:57  

Additional Information
 Earth MOID = .905774 au 
 Jupiter MOID = 2.81595 au 
 T_jup = 3.575 
[ 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 15.9   n/a MPO378883  

37621 (1993 QT4)          Discovered 1993-Aug-18 by Elst, E. W. at Caussols
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 QT4 = 2000 RP28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-07 06:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin