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 ]  
101551 (1999 AH1)
Classification: Main-belt Asteroid          SPK-ID: 2101551
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1310760251141364 4.2886e-08  
a 2.521767138132282 1.0841e-08 au
q 2.191223925402451 1.0951e-07 au
i 3.727537259152155 4.4273e-06 deg
node 131.8752890474757 5.8615e-05 deg
peri 223.9198575941315 6.0146e-05 deg
M 286.60867073655 1.4539e-05 deg
tp 2459498.693485463095
(2021-Oct-11.19348546)
5.9806e-05 TDB
period 1462.702145390576
4.00
9.432e-06
2.582e-08
d
yr
n .246119827700035 1.5871e-09 deg/d
Q 2.852310350862112 1.2262e-08 au
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      8803 days (24.10 yr)  
   first obs. used      1996-04-17  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55234  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:19  

Additional Information
 Earth MOID = 1.1865 au 
 Jupiter MOID = 2.57636 au 
 T_jup = 3.441 
[ 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 16.33   n/a MPCxxxxx  

101551 (1999 AH1)          Discovered 1999-Jan-07 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
2115-Dec-27 19:07 < 00:01 Juno 0.0211151969481703 0.0211124510569727 0.0211179564220775 5.12914165634322 5.12914154401053 2493908.296508101 0.72216619442484 907.171130279114 46.3580033639389 81.8083254084396 67403.2433446118 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:37:22 2021-Apr-13 15:37

Alternate Designations
 1999 AH1 = 1996 HL6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-14 07:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin