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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
72244 (2001 AH25)
Classification: Main-belt Asteroid          SPK-ID: 2072244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1032426927444415 3.453e-08  
a 2.743710145116266 1.5058e-08 au
q 2.46044212162422 9.2717e-08 au
i 10.29792479232693 3.6257e-06 deg
node 102.4860983642986 1.9092e-05 deg
peri 129.0155925691801 2.6212e-05 deg
M 98.28089615110372 1.6442e-05 deg
tp 2458943.318286046471
(2020-Apr-03.81828605)
7.6161e-05 TDB
period 1659.991141843472
4.54
1.3666e-05
3.742e-08
d
yr
n .2168686271423164 1.7853e-09 deg/d
Q 3.026978168608311 1.6613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1246  
   data-arc span      9359 days (25.62 yr)  
   first obs. used      1995-12-24  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:43:00  

Additional Information
 Earth MOID = 1.46347 au 
 Jupiter MOID = 2.02945 au 
 T_jup = 3.318 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457890.5 (2017-May-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1015775690968143 3.4626e-08  
q 2.464471388582623 9.2458e-08 au
tp 2457282.263979754628
(2015-Sep-16.76397975)
7.9979e-05 TDB
node 102.5206916015807 1.907e-05 deg
peri 128.6771895266637 2.641e-05 deg
i 10.30313308519049 3.6284e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1246  
   data-arc span      9359 days (25.62 yr)  
   first obs. used      1995-12-24  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:43:00  

Additional Information
 Jupiter MOID = 2.02945 au 
 T_jup = 3.318 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.198935513171471E-15 -3.170019370433062E-15 5.299684883431493E-14 -5.640414970692997E-15 3.856848574375559E-14 -1.213362176295786E-15
q -3.170019370433062E-15 8.548391942543022E-15 -4.23257583545247E-13 1.462676553372641E-14 -1.51223141938853E-13 3.274497546262026E-15
tp 5.299684883431493E-14 -4.23257583545247E-13 6.396608128349462E-9 -7.49653282443447E-12 1.468581128714932E-9 1.172561165209788E-12
node -5.640414970692997E-15 1.462676553372641E-14 -7.49653282443447E-12 3.636744328877539E-10 -3.595973912741598E-10 -9.621431622239973E-12
peri 3.856848574375559E-14 -1.51223141938853E-13 1.468581128714932E-9 -3.595973912741598E-10 6.975087660717218E-10 9.736969816663581E-12
i -1.213362176295786E-15 3.274497546262026E-15 1.172561165209788E-12 -9.621431622239973E-12 9.736969816663581E-12 1.316522273451139E-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 14.49   n/a MPCxxxxx  
diameter diameter 4.131 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.237   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72244 (2001 AH25)          Discovered 2001-Jan-04 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-22 01:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin