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 ]  
46855 (1998 QR44)
Classification: Main-belt Asteroid          SPK-ID: 2046855
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770200828844003 3.1961e-08  
a 2.471310965527164 1.0195e-08 au
q 2.033839293576418 8.049e-08 au
i 4.281317872178566 3.7271e-06 deg
node 157.0928929825045 5.3731e-05 deg
peri 149.9126899474865 5.5311e-05 deg
M 290.1314408831159 1.6473e-05 deg
tp 2459475.903089172076
(2021-Sep-18.40308917)
6.5841e-05 TDB
period 1419.023282505168
3.89
8.7809e-06
2.404e-08
d
yr
n .2536956260255645 1.5699e-09 deg/d
Q 2.90878263747791 1.2e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1307  
   data-arc span      8465 days (23.18 yr)  
   first obs. used      1997-04-04  
   last obs. used      2020-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54928  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:53:03  

Additional Information
 Earth MOID = 1.01847 au 
 Jupiter MOID = 2.3481 au 
 T_jup = 3.458 
[ 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 15.12   n/a E2021B10  
diameter diameter 2.968 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.220   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

46855 (1998 QR44)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QR44 = 2001 FO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-15 00:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin