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 ]  
101959 (1999 RH38)
Classification: Main-belt Asteroid          SPK-ID: 2101959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152966883188588 5.045e-08  
a 2.344687992243919 8.7057e-09 au
q 1.986028378020659 1.1782e-07 au
i 5.92058194567033 4.7546e-06 deg
node 18.92998626017945 3.4759e-05 deg
peri 355.2536073694064 3.7006e-05 deg
M 325.8678901767804 1.1968e-05 deg
tp 2459324.833067749377
(2021-Apr-20.33306775)
4.3803e-05 TDB
period 1311.372330090368
3.59
7.3035e-06
2e-08
d
yr
n .2745215769309332 1.5289e-09 deg/d
Q 2.70334760646718 1.0037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      996  
   data-arc span      7212 days (19.75 yr)  
   first obs. used      1999-09-05  
   last obs. used      2019-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:38  

Additional Information
 Earth MOID = .985496 au 
 Jupiter MOID = 2.76126 au 
 T_jup = 3.539 
[ 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 15.5   n/a MPO436477  

101959 (1999 RH38)          Discovered 1999-Sep-13 by Korlevic, K. at Visnjan
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 RH38 = 2001 DR33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-23 03:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin