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 ]  
39401 (7572 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250227179569965 3.4356e-08  
a 2.277938709795562 8.2038e-09 au
q 1.993144620957467 7.7628e-08 au
i 3.631611021027213 4.5412e-06 deg
node 137.2180507857256 6.866e-05 deg
peri 150.2628397848862 7.2141e-05 deg
M 247.9528558425363 2.4231e-05 deg
tp 2459591.349688383383
(2022-Jan-11.84968838)
8.5348e-05 TDB
period 1255.773976892076
3.44
6.7838e-06
1.857e-08
d
yr
n .2866757924789672 1.5486e-09 deg/d
Q 2.562732798633657 9.2294e-09 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      22084 days (60.46 yr)  
   first obs. used      1960-09-27  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55368  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:42:26  

Additional Information
 Earth MOID = .975848 au 
 Jupiter MOID = 2.57343 au 
 T_jup = 3.595 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456657.5 (2013-Dec-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1251926440352739 3.4337e-08  
q 1.992487607847835 7.7576e-08 au
tp 2457080.295358348115
(2015-Feb-26.79535835)
8.089e-05 TDB
node 137.257882937813 6.8668e-05 deg
peri 150.345880883881 7.2151e-05 deg
i 3.631503539798863 4.542e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      22084 days (60.46 yr)  
   first obs. used      1960-09-27  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55368  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:42:26  

Additional Information
 Jupiter MOID = 2.57343 au 
 T_jup = 3.595 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.179046402195051E-15 -2.652691880113005E-15 9.160748506123192E-13 4.341171373382038E-15 2.298547566071142E-13 -5.094457706793762E-16
q -2.652691880113005E-15 6.018056080175687E-15 -1.944775334668113E-12 -9.130451164861477E-15 -4.918734387125017E-13 1.197997348562395E-15
tp 9.160748506123192E-13 -1.944775334668113E-12 6.543192215522561E-9 8.039579322391235E-13 1.808283259551145E-9 -2.960305753149778E-12
node 4.341171373382038E-15 -9.130451164861477E-15 8.039579322391235E-13 4.71533392339064E-9 -4.705310712557104E-9 1.141651227294306E-10
peri 2.298547566071142E-13 -4.918734387125017E-13 1.808283259551145E-9 -4.705310712557104E-9 5.205790380748937E-9 -1.147870401587441E-10
i -5.094457706793762E-16 1.197997348562395E-15 -2.960305753149778E-12 1.141651227294306E-10 -1.147870401587441E-10 2.062951324871955E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.58   n/a E2021B10  

39401 (7572 P-L)          Discovered 1960-Sep-27 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 7572 P-L = 2000 DD21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-18 16:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin