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 ]  
173692 (2001 PS20)
Classification: Main-belt Asteroid          SPK-ID: 2173692
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693401596971578 4.2139e-08  
a 2.807437775602251 1.3692e-08 au
q 2.332025814341932 1.1855e-07 au
i 9.981775743959574 4.5224e-06 deg
node 63.82587732440814 2.9504e-05 deg
peri 256.5995229082562 3.3941e-05 deg
M 41.60750455948105 1.5468e-05 deg
tp 2459001.921235426737
(2020-Jun-01.42123543)
7.3908e-05 TDB
period 1718.160125276837
4.70
1.2569e-05
3.441e-08
d
yr
n .209526454900119 1.5328e-09 deg/d
Q 3.282849736862569 1.601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      2000-04-27  
   last obs. used      2021-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:29:36  

Additional Information
 Earth MOID = 1.34197 au 
 Jupiter MOID = 2.08763 au 
 T_jup = 3.279 
[ 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 15.48   n/a E2021B55  

173692 (2001 PS20)          Discovered 2001-Aug-10 by NEAT at Palomar
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1946-May-06 03:26 00:03 Thisb 0.0408500535155355 0.0408331188417962 0.0408669917571379 4.24092124669662 4.24092120733962 2431946.642790733 2.81212051433379 1037.02470396965 39.308182564074 35.5406844396965 90449.3113660007 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 11:29:37 2021-Feb-24 11:29
2033-Feb-22 11:47 < 00:01 Europ 0.0225871989323471 0.0225851780710807 0.0225892212803436 5.21451849843632 5.21451840819715 2463650.990788891 0.739829467884258 376.05189327371 60.8256862690998 77.497547500122 54246.2396201445 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 11:29:37 2021-Feb-24 11:29

Alternate Designations
 2001 PS20 = 2005 JC28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-04 16:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin